Answer: Mycobacterium tuberculosis
Explanation: The bacteria usually attack the lungs, but TB bacteria can attack any part of the body such as the kidney, spine, and brain. Not everyone infected with TB bacteria becomes sick.
A net force of 9,079 N i applied to a car having ma of 1,447 kg. Find the acceleration of the car
Answer:
\( \Huge{\boxed{6.27 m/s²}} \)
Explanation:
The acceleration of the car given it's mass and the force acting on it can be found by using the formula
\( acceleration = \frac{force}{mass}\\ \)
From the question
force = 9079 N
mass = 1447 kg
We have
\( acceleration= \frac{9079}{1447}\\ = 6.27436 \)
We have the final answer as
6.27 m/s²How does the Coriolis effect impact the Gulf Stream and the Brazil Current?
Answer: The Coriolis effect results in bending the direction of surface currents to the right in the Northern Hemisphere and left in the Southern Hemisphere. The Coriolis effect causes winds and currents to form the circular patterns. The direction in which they spin depends upon the hemisphere in which they are present.Coriolis Effect is named after the French mathematician and physicist Gaspard-Gustave de Coriolis. It affects the weather patterns of an area, it affects the ocean currents, and it also affects air quality.
a 1000 kg car comes to a stop without skidding. the car's brakes do 50,000 j of work to stop the car. how much kinetic energy did the car have when the brakes were initially applied?
The kinetic energy of an object is the energy it possesses due to its motion. In this problem, the car comes to a stop without skidding, meaning that all of its initial kinetic energy is dissipated as work done by the brakes.
The work done by the brakes is given as 50,000 J, and we know that work is equal to the change in kinetic energy. Therefore, the initial kinetic energy of the car is also 50,000 J. This means that the car was moving with a significant amount of energy before the brakes were applied, which highlights the importance of braking systems in ensuring safety on the road.
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Suppose we conduct an experiment with a ball that we throw from the top of a tall tower of height H. We throw it directly downward with some initial velocity v. and then measure the clapsed time until it hits the ground. We vary the initial height and the initial velocity. The variables of interest in this problem are H. v. and r. A little thought leads us to include g. since it is the force of gravity that causes the ball to fall in the first place. Using Rayleigh's method, find a set of dimensionless ratios that can be used to correlate our data.
Using Rayleigh's method, a set of dimensionless ratios that can be used to correlate our data is the ratio of initial velocity to the square root of the product of acceleration due to gravity and height.
Rayleigh's method for dimensionless ratiosIn order to find a set of dimensionless ratios to correlate the data in the given experiment, we can use Rayleigh's method. Rayleigh's method involves selecting a set of relevant physical quantities and combining them in such a way that the resulting ratios are dimensionless.
In this case, the relevant physical quantities are:
Height (H)Initial velocity (v)Radius (r)Acceleration due to gravity (g)To create dimensionless ratios, we can choose combinations of these quantities that eliminate the units. One possible set of dimensionless ratios can be:
Ratio of initial velocity to the square root of the product of acceleration due to gravity and height:
v / √(gH)
Ratio of radius to height:
r / H
These dimensionless ratios can be used to correlate the data obtained from the experiment. By plotting these ratios against each other or against other relevant parameters, it may be possible to identify relationships or trends in the data that can be described using these dimensionless ratios.
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Two helium isotopes fuse to form beryllium, as shown below. The mass of beryllium is 2.73 x 107 kg less than the combined mass of the two helium atoms. How much energy was produced during this reaction? The speed of light is 3 x 108 m/s. Show your work. Use E = mc².
3/2He+ 4/2He → 7/4Be
A chemical element with the symbol Be and atomic number 4 is known as beryllium. Beryllium is a solid at room temperature and is categorized as an alkaline earth metal. The molar mass of beryllium (atomic number 4) is 9.012 g/mol. Accordingly, if all 6.22x1023 Beryllium atoms were put together in a mole, they would weigh 9.012g on a triple beam balance.
Explain about the mass of beryllium?
The atomic mass unit serves as the unit of measurement for mass (amu). A mass unit of an atom is 1.66 x 10-24 gram. The mass of one nucleon, which can be either a single proton or neutron, is roughly equal to one unified atomic mass unit, which is numerically equivalent to 1 g/mol.
In the aircraft industry in particular, beryllium is employed in gears and cogs. A silvery-white metal is beryllium. It has a low density and is relatively soft. Gyroscopes, springs, electrical contacts, spot-welding electrodes, and non-sparking tools all use beryllium in alloys with copper or nickel.
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Either coal (C) or gas (G) can be used in the production of steel. The cost (per unit) of coal is 100 , the cost (per unit) of gas is 500 . Draw an isocost curve showing the different combinations of gas and coal that can be purchased (a) with an initial expenditure (TC) of 20000 . (b) if the expenditure (TC) increases by 50%. (c) if the gas price is reduced by 25%. (d) if the coal price rises by 20%. In answering parts (b)-(d), always start from the original isocost equation.
a) The isocost curve equation is G = (20000 - 100C)/500. b) The isocost curve equation is G = (30000 - 100c)/500. c) The isocost curve equation is G = (20000 - 100C)/375. d) The isocost curve equation is G = (20000 - 120C)/500.
To draw the isocost curve showing the different combinations of gas and coal, we need to use the cost per unit values for coal and gas, as well as the given expenditure (TC) and the changes in expenditure or prices.
Let's denote the quantity of coal as C and the quantity of gas as G. The cost per unit of coal is 100, and the cost per unit of gas is 500.
(a) Initial expenditure (TC) of 20000:
To find the combinations of gas and coal that can be purchased with an initial expenditure of 20000, we can use the following isocost equation
TC = 100C + 500G
We can rearrange the equation to solve for G in terms of C
G = (TC - 100C) / 500
Now we can plot the isocost curve with TC = 20000 using the equation above.
(b) Expenditure (TC) increases by 50%
If the expenditure increases by 50%, the new expenditure (TC_new) becomes 1.5 × TC = 1.5 × 20000 = 30000.
We can use the same isocost equation as before, but with the new expenditure value:
TC_new = 100C + 500G
Rearranging the equation to solve for G
G = (TC_new - 100C) / 500
Now we can plot the isocost curve with TC_new = 30000.
(c) Gas price reduced by 25%:
If the gas price is reduced by 25%, the new cost per unit of gas (Gas_new) becomes 0.75 × 500 = 375.
We can use the original isocost equation, but with the new cost per unit value:
TC = 100C + 375G
Rearranging the equation to solve for G
G = (TC - 100C) / 375
Now we can plot the isocost curve with the reduced gas price.
(d) Coal price rises by 20%
If the coal price rises by 20%, the new cost per unit of coal (Coal_new) becomes 1.2 × 100 = 120.
We can use the original isocost equation, but with the new cost per unit value:
TC = 120C + 500G
Rearranging the equation to solve for G:
G = (TC - 120C) / 500
Now we can plot the isocost curve with the increased coal price.
By plotting these isocost curves on a graph with G on the y-axis and C on the x-axis, we can visualize the different combinations of gas and coal that can be purchased at the given expenditures or price changes.
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On US Interstate system, the maximum speed is 121km/h. How far will you travel if you
maintained this speed for 3 hours and 20 minutes?
The distance traveled by me on a US interstate system with a maximum speed of 121 km/h is 403.3 km.
What is distance?Distance is the total length betwen two points
To calculate the distance traveled, we use the formula below.
Formula:
d = Vt.............Equation 1Where:
d = Distance traveled by meV = Maximum speedt = TimeFrom the question,
Goiven:
V = 121 km/ht = 3 hours 20 minute = 10/3 hoursSubstitute these values into equation 1
d = 121×10/3d = 403.3 kmHence, the distance traveled by me is 403.3 km.
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a positive charge of 4.0 microcoulombs exerts an attractive force of 8 newtons on an unknown charge 0.2 meters away. what is the unknown charge?
If a positive charge of 4.0 micro coulombs exerts an attractive force of 8 newtons on an unknown charge 0.2 meters away. The unknown charge is 2.22 × 10⁻¹¹ C.
The equation used to find the unknown charge is Coulomb's law. Coulomb's law formula is stated as: F = Kq1q2/d²
Where,
F is the force, K is the Coulomb's constant, q1 is the first charge, q2 is the second charge, and d is the distance between the charges.
Here, K= 9 × 10⁹ N m²/C², and F = 8 N, q1 = 4.0 µC = 4.0 × 10⁻⁶ C, d = 0.2 m
To find the unknown charge, let's solve for q2:
8 N = 9 × 10⁹ N m²/C² × (4.0 × 10⁻⁶ C) × q2/ (0.2 m)²8 N
= (9 × 10⁹ N m²/C² × 4.0 × 10⁻⁶ C × q2)/ 0.04 m²0.32 N m²/C²
= 9 × 10⁹ N m²/C² × 4.0 × 10⁻⁶ C × q2q2
= (0.32 N m²/C²) / (9 × 10⁹ N m²/C² × 4.0 × 10⁻⁶ C)q2
= 2.22 × 10⁻¹¹ C
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A parallel plate capacitor has plate separation of 4.0 cm and a plate area of 4.0x10-2 m2. What is the capacitance of this capacitor?Group of answer choices8.9x10^-12 F8.9x10^-13 F8.9x10^-15 F8.9x10^-14 F
In order to calculate the capacitance of this capacitor, we can use the formula below:
\(C=\frac{\epsilon_0A}{d}\)Where C is the capacitance (in Farad), e0 is the dielectric constant (equal to 8.9 * 10^-12) A is the plate area (in m²) and d is the plate separation (in m).
So, for A = 4 * 10^-2 m² and d = 0.04 (equal to 4 * 10^-2) m, we have:
\(\begin{gathered} C=\frac{8.9\cdot10^{-12}\cdot4\cdot10^{-2}}{4\cdot10^{-2}} \\ C=8.9\cdot10^{-12}\text{ F} \end{gathered}\)Therefore the correct option is the first one.
A car has a speed of 20 m/s. If the speed of the car increases to 30 m/s in 5 seconds, what is the car’s acceleration?
2
Explanation:
2 times 5 is 10/ 20+10=30
what three factors affect the torque created by a force relative to a specific pivot point
The three factors that affect torque are the magnitude of the force, the distance from the pivot point, and the angle between the force and the lever arm.
The three factors that affect the torque created by a force relative to a specific pivot point are:
1. Magnitude of the Force: The greater the magnitude of the applied force, the greater the torque generated. A larger force will create a larger rotational effect around the pivot point.
2. Distance from the Pivot Point: The distance between the pivot point and the point where the force is applied, known as the lever arm or moment arm, influences the torque. Increasing the lever arm increases the torque for the same applied force.
3. Angle of Application: The angle at which the force is applied relative to the lever arm also affects the torque. The torque is maximized when the force is applied perpendicular (at a 90-degree angle) to the lever arm.
These factors demonstrate how the interaction between force, distance, and angle determines the rotational effect (torque) around a specific pivot point.
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what is the minimum angular velocity (in rpm ) for swinging a bucket of water in a vertical circle without spilling any? the distance from the handle to the bottom of the bucket is 35 cm . express your answer in revolutions per minute.
The minimum angular velocity (in rpm) for swinging a bucket of water in a vertical circle without spilling any is 5.56 rpm.
The minimum angular velocity (in rpm) for swinging a bucket of water in a vertical circle without spilling any is given by the formula; Vmin=√g/R
where:
Vmin = minimum angular velocity (in rpm)g = acceleration due to gravity (9.81 m/s²)R = radius of the circular path or distance from the handle to the bottom of the bucket (35 cm)To express the answer in revolutions per minute, the radius of the circle must be converted to meters;R = 35 cm = 0.35 m
Substituting the values given above into the formula;
Vmin=√g/R Vmin=√9.81/0.35 Vmin = 5.56 rpmTherefore, the minimum angular velocity (in rpm) for swinging a bucket of water in a vertical circle without spilling any is 5.56 rpm.
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Ocean swells are an example of waves. In the Waves Gizmo, you will observe wave motion on a model of a spring. The hand can move the spring up and down or back and forth.
To begin, check that the Type of wave is Transverse, Amplitude is 20. 0 cm, Frequency is 0. 75 Hz, Tension is 3. 0 N, and Density is 1. 0 kg/m. (Note: In this Gizmo, "density" refers to the linear mass density, or mass per unit length. It is measured in units of kilograms per meter. )
1. Click Play (). How would you describe the motion of a transverse wave? Click Pause (). Notice the crests (high points) and troughs (low points) of the wave.
2. Click Reset (). Choose the Longitudinal wave and increase the Amplitude to 20. 0 cm. Click Play. How would you describe the motion of a longitudinal wave? Click Pause. Notice the compressions in the wave where the coils of the spring model are close together and the rarefactions where the coils are spread apart
When we Click Play() the motion of a transverse wave is from left to right and when we Click Reset() the motion of a wave and hand both is left to right.
Wave motion is the regular and orderly movement of disturbances, or departures from equilibrium or rest, from one location to another. The most well-known waves are surface waves on water, but waves can also be seen in sound waves, light waves, and subatomic particle movements.
When we Click Play() the motion of a transverse wave will be from left to right but the movement of particles will be up and down and in conclusion the wave moves left and right and the hands move up and down.
Now, when we Click Reset() and choose the Longitudinal wave and increase the Amplitude to 20. 0 cm. and then Click Play the motion of the longitudinal wave and the hand both is left to right.
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Draw Lewis diagram of an oxygen difluoride molecule
Explanation:
that is my answer thank me later
Answer:
oxygen difluoride a polar molecule
Use the figure below to find the x and y values that would make the lines parallel.
The values of x and y are 28° and 46.33° respectively, will make the lines parallel.
Since angle between two collinear lines is 180°,
5 x + 40° = 180°
5 x = 180 - 40
x = 140 / 5
x = 28°
Since corresponding angles are equal if the lines are parallel,
3 y - 1 + 40° = 180°
3 y = 180 -40 + 1
y = 139 / 3
y = 46.33°
Corresponding angles are the angles formed at same relative position at each intersection. When a transversal intersects two parallel line, the corresponding angles are equal.
Therefore, to make the line parallel the values of x and y should be 28° and 46.33° respectively.
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Keisha writes that if an object has external force acting on it then the object can be in dynamic equilibrium but not staric equilibrium
The statement that best describes Keisha errors is an object in either state of equilibrium must have no net force acting on it.
What is an object at dynamic equilibrium?An object is said to be on a dynamic equilibrium when it moves at a constant speed, and all the forces on the object are balanced.
An object is also said to be on static equilibrium when it is unable to move because all the forces which act on it compensate for one another.
Therefore, the statement that best describes Keisha errors is an object in either state of equilibrium must have no net force acting on it.
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if rechargeable cell is being charged from a source of EMF the EMF of cell during charging is
A. always equal to its terminal potential difference
B. always greater than its terminal potential difference
C. always less than its terminal potential difference
D. either equal or less than its terminal potential difference
Answer:
a
Explanation:
I think bec. I am in small school
1510 3. A body has initial velocity 2 m s¹. After it moves 50 m with a constant acceleration„the velocity becomes 12 m s¹. How long will it take?
Answer:
-1+√251/5 s
Explanation:
The most appropriate equation of motion for this question is; s= ut+(at^2)/2
t=-1+√251/5 s
--------- does not have its own light it shines by ------------------------ the sunlight.
Answer:The moon does not have its own light. It shines by reflecting the sunlight.
Explanation:
the air is compressed in a bicycle pump, an average force of 45N is exerted as the pump handle moves 0.24 m. During this time, 2.0J heat leaves the cylinder through the walls. What is the net change in thermal energy of the air in the cylinder?
The net change in thermal energy of the air in the cylinder is -8.8 J.
When a force is exerted on a system and it undergoes a displacement, work is done. In this case, when the pump handle moves 0.24 m, the work done on the air in the cylinder is:
Work = Force x Distance
Work = 45N x 0.24m
Work = 10.8 J
The heat leaving the cylinder through the walls is considered as heat transfer or heat loss to the surroundings.
Therefore, the net change in thermal energy of the air in the cylinder can be calculated using the first law of thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system:
ΔU = Q - W
where ΔU is the change in internal energy of the system, Q is the heat added to the system, and W is the work done by the system.
Substituting the values given in the problem:
ΔU = 2.0 J - 10.8 J
ΔU = -8.8 J
Since the value of ΔU is negative, it means that the internal energy of the air in the cylinder has decreased, which can be attributed to the heat loss to the surroundings.
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What is the necessary conditions for the production of sound?
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Answer: Something that's vibrating, and you also need medium for those vibrations to start in.
I hope this helped!
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Which of the following are true about electric motors?
An armature spins to create kinetic energy.
A horseshoe magnet drives the spin of the armature.
The direction of the current is changing direction over and over.
All of these are correct.
The true statements about electric motion are:
An armature spins to create kinetic energy.A horseshoe magnet drives the spin of the armature.The direction of the current is changing direction over and over.What is electric motor?An electrical device that transforms electrical energy into mechanical energy is an electric motor. The majority of electric motors work by creating force in the form of torque imparted to the motor shaft through the interplay of the magnetic field of the motor and electric current in a wire winding.
Electric generators function with a reversed power flow, transforming mechanical energy into electrical energy, and are mechanically identical to electric motors.
Electric motors can be powered by alternating current (AC) sources like a power grid, inverters, or electrical generators or by direct current (DC) sources like batteries or rectifiers.
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can you help me I am in trouble plz help
Answer:
A velocity
B acceleration
C ms^-2
How does your collected data help you to see if you meet your criteria for success
Collected data plays a crucial role in evaluating whether the criteria for success have been met. By analyzing the collected data, one can assess the progress made towards achieving the desired goals and determine if the criteria have been fulfilled.
Data provides an objective measure of performance or outcomes, allowing for an evidence-based assessment of success. It helps to quantify and track key metrics or indicators related to the criteria for success. By comparing the actual data with the predetermined benchmarks or targets, one can determine if the criteria have been met or if further improvements are required.
Data analysis also enables the identification of trends, patterns, and correlations, providing insights into the factors influencing success. It helps in identifying areas of strength and areas that need improvement. Additionally, data can be used for comparative analysis, benchmarking against previous periods or similar projects, to gain a broader perspective on success.
In summary, collected data provides an objective basis for evaluating progress and success by comparing actual performance against predetermined criteria, identifying areas of improvement, and gaining insights for future decision-making.
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Wwhat was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air?
The speaker's power output is 785.398 W assuming uniform spherical spreading of the sound and neglecting absorption in the air.
Given the Sound Intensity = I and
the Loudspeaker Distance = r = 2.5m
Sound level produced(β) : 130 dB
The formula for calculating sound intensity is:
β = 10logI/I0
130 = 10logI/10-12
13 = logI/10-12
10^13x10^-12 = I
I = 10 W/m^
A = area, hence power (P) = IA = 4πr^2
P = 10X 4X 3.14X (2.5)^
P = 785.398W
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At a rock concert, a dB meter registered 130 dB when placed 2.5 m in front of a loudspeaker on stage. (a) What was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air?
A tight rope walker falls from the tight rope and it’s a safety net. It take .25 seconds for her to stop moving. The net provided an impulse of 250 n*s of force. What was the force that the tight rope walker hit the net.
dam.n bored ~
Hey there mate :)
Given:-
Time: 0.25s
Impulse: 250 n*s
Procedure:-
As Impulse=Force×Time
\(i = f \times t\)
\( = > f = \frac{i}{t} \)
\( = > f = \frac{250N \times s}{0.25s} \)
\( = > 1000N\)
So, the force would be 1000 N
The force that the tight rope walker hit the net is 1,000 N.
Net impulse on the walkerThe net impulse on the rope walker is given as 250 Ns. The force that the tight rope walker will hit the net will be determined using this impulse.
Force of the walkerThe force that the tight rope walker hit the net is calculated by applying Newton's second law of motion as follows;
\(F = \frac{J}{t}\)
where;
J is the impulse = 250 Nst is the time of motion = 0.25 s\(F = \frac{250}{0.25} \\\\F = 1000 \ N\)
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The sky on Earth is blue because blue light is scattered through the atmosphere as the other colors of light pass through undisturbed. Which nebulae have something similar going on?
A. Emission nebulae
B. Dark nebulae
C. Reflection nebulae
D. Planetary nebulae
The sky on Earth is blue because blue light is scattered through the atmosphere as the other colors of light pass through undisturbed. Dark nebulae have something similar going on.
What is nebulae?Nebulae are interstellar dust and gas clouds that get backlighting from stars both inside and behind them. The clouds are illuminated by the photons from these stars that are dispersed throughout them. A nebula does not generate most of the light that appears to come from it; rather, it reflects and refracted light.
A dark nebula, also known as an absorption nebula, is a form of interstellar cloud, particularly a molecular cloud, that is so dense that it absorbs all of the light from objects behind it, including emission or reflection nebulae and background stars, at visible wavelengths.
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Body starts from rest and moves with some
acceleration. What is the ratio of the distance
travelled by the body during the 4 sec and 3 sec
second
(1) 7/5
(2) 7/3
(3) 5/7
(4) 8/7
None of the provided answer options (1) 7/5, (2) 7/3, (3) 5/7, (4) 8/7 matches the calculated ratio of 16/9.
To determe inthe ratio of the distance traveled by the body during 4 seconds to the distance traveled during 3 seconds, we need to consider the relationship between distance, time, and acceleration.
Let's assume the initial velocity of the body is u, and the acceleration is a.Using the equation of motion for linear motion:
s = ut + (1/2)at²
where s is the distance traveled, u is the initial velocity, t is the time, and a is the acceleration.
For the first 4 seconds, the distance traveled (s1) can be calculated as:
s1 = ut + (1/2)at² = u(4) + (1/2)a(4)² = 4u + 8a
For the next 3 seconds, the distance traveled (s2) can be calculated as:
s2 = ut + (1/2)at² = u(3) + (1/2)a(3)² = 3u + (9/2)a
Now, let's find the ratio of s1 to s2:
s1/s2 = (4u + 8a)/(3u + (9/2)a)
To simplify the expression, let's multiply the numerator and denominator by 2:
s1/s2 = (8u + 16a)/(6u + 9a)
Dividing both the numerator and denominator by u:
s1/s2 = (8 + 16(a/u))/(6 + 9(a/u))
Since the acceleration (a) is not related to the initial velocity (u), the ratio simplifies to:
s1/s2 = (8 + 16(a/u))/(6 + 9(a/u))
Therefore, the ratio of the distance traveled during 4 seconds to the distance traveled during 3 seconds depends on the ratio of acceleration to initial velocity.
Without more information about the specific values of acceleration and initial velocity, we cannot determine the exact ratio. Hence, none of the given options (1) 7/5, (2) 7/3, (3) 5/7, or (4) 8/7 can be confirmed as the correct answer without additional information.
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Help pls Important!!!!
A hammer strikes a nail with a 8 N force for 0.018 seconds. Calculate the impulse of the hammer.
Answer:
0.144
Explanation:
Impulse is defined as force multiplied by time
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