Can you determine the general relationship between the work done by the spring on the cart to the velocity of the cart?

The net force is 240 N.

We need to know about force resultant to solve this problem. The force resultant is the total net force applied to the object according to the direction. It can be written as

R = F1 + F2 + ... + Fn

where R is force resultant (net force)

From the question above, we know that

F1 = 110 N

F2 = 130 N

The sled doesn't have friction force due to medium is frictionless.

Because the direction is the same, the force will add to each other.

R = F1 + F2

R = 110 + 130

R = 240 N

Hence, the net force is 240 N

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Answer:

Volleyball was invented in 1895 by William G. Morgan, physical director of the Young Men's Christian Association (YMCA) in Holyoke, Massachusetts.

The measure of the amount of disorder in a system is called Entropy. The concept of entropy is one of the central ideas in thermodynamics. The correct answer is option C.

The thermodynamic quantity entropy is a measure of the amount of disorder or randomness in a system. Entropy is a measure of the number of arrangements that are possible in a system, and the degree of disorder or randomness that is present in the system.

Entropy is an important concept in thermodynamics because it helps us to understand how energy is transferred from one system to another. In a closed system, the total amount of energy remains constant, but the distribution of energy within the system can change.

As energy is transferred from one system to another, the entropy of the system increases, and the system becomes more disordered.

Entropy is a measure of the number of microstates that are available to a system, which is a measure of the disorder or randomness of the system. The greater the number of microstates that are available to a system, the greater the degree of disorder or randomness that is present in the system.

In summary, entropy is the measure of the amount of disorder or randomness that is present in a system. It is an important concept in thermodynamics because it helps us to understand how energy is transferred from one system to another, and how the distribution of energy within a closed system can change over time. The correct answer is option C.

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Answer:

fundamental units are those units that are independent to other units where as derived units are derived from fundamental units . there are altogether 7 fundamental units where as there are more than seven derived units..

Answer:

\( \boxed{ \sf{see \: below}}\)

Explanation:

\(\underline{ \sf{fundamental \: unit}}\)

\( \star\) This is the unit of a fundamental quantity.

\( \star\) This unit is independent of other units.

\( \star\) There are only seven fundamental units. They are metre , kilogram , second , Kelvin , ampere , candela and mole.

\( \underline{ \sf{derived \: unit}}\)

\( \star\) This is the unit of a derived Quantity.

\( \star\) This unit is obtained from fundamental units.

\( \star\) It is formed in many types using seven fundamental units. They are Newton , Pascal , Joule , Watt , Hertz , Ohm etc.

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Explanation:

KE = ½ mv²

KE = ½ (70 kg) (5.0 m/s)²

KE = 875 J

Answer:  1580 J

Explanation:

Energy is in the form of gravitational potential energy. (GPE)

GPE = mgh , where m is the mass of the block, h is the height and g is the gravitational constant of 9.81 ms-2.

Hence,

Total energy = mass x gravitational constant x height

                      = Weight x height (since W = mg)

                      = 79 x 20 J

                      = 1580 J

The correct option is 4.

The process by which the isotope 56Fe decays into the isotope 56Co is beta decay.

The correct option is 4.What is beta decay? Beta decay is a type of radioactive decay in which a beta particle, a positron, or an electron is emitted by the nucleus of an atom. Beta decay is a decay process in which the atomic nucleus emits beta particles, which are high-energy, high-speed electrons or positrons.

In beta decay, a neutron in the nucleus transforms into a proton, causing the emission of an electron and a neutrino in the process. The isotope 56Fe decays into the isotope 56Co by the following beta decay process:56Fe26 → 56Co27 + β−where β- is a beta particle, and it is emitted from the nucleus, resulting in an increase in atomic number Z by one, while atomic mass number A remains unchanged. The daughter isotope is 56Co.

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Most crashes occur at intersections because Drivers fail to search and identify a safe path of the travel when approaching an intersection. Drivers don't identify or understand the risks. Drivers fail tp develop good driving habits to effectively manage the risks.

Most crashes occur at intersections because of the following reason:

1) Drivers fail to search and identify a safe path of the travel when approaching an intersection.

2) Drivers don't identify or understand the risks.

3) Drivers fail tp develop good driving habits to effectively manage the risks.

Thus, Most crashes occur at intersections because all of the above reason. Most crashes occur at intersections because Drivers fail to search and identify a safe path of the travel when approaching an intersection. Drivers don't identify or understand the risks. Drivers fail tp develop good driving habits to effectively manage the risks.

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The two stars are about 0.0326 light-years apart from each other.

We can use trigonometry to solve this problem. The parallax angle, p, is related to the distance, d, by the formula,

d = 1/p

where d is in parsecs and p is in arcseconds. To convert from parsecs to light-years, we use the fact that 1 parsec is about 3.26 light-years.

The two stars are 5 degrees apart, which is equivalent to 300 arcminutes or 18,000 arcseconds. The difference in their parallax angles is 0.13 - 0.11 = 0.02 arcseconds.

This angle is half the angle between their parallax angles, or 0.01 arcseconds. Now we can use trigonometry to find the distance between the stars,

tan(0.01 arcseconds) = opposite/adjacent

where the opposite side is the distance between the stars and the adjacent side is their distance from Earth, which we will call d.

We can use small-angle approximation to simplify the trigonometric function,

tan(0.01 arcseconds) ≈ 0.01 arcseconds

0.01 arcseconds = distance/1 parsec

distance = 0.01 parsecs

distance = 0.01 x 3.26 light-years

distance = 0.0326 light-years

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To determine the amount of energy stored in the bow at full extension (0.5 m), or E-bow,

1. First, collect data points of force and extension (distance) for the bowstring. Ensure you have more than 3 or 4 data points for a better estimate.

2. Plot the force vs. extension data points on a graph.

3. Calculate the area under the curve of the force vs. extension graph up to the full extension (0.5 m).

The area under the curve represents the work done on the bowstring and is equal to the energy stored in the bent bow (E-bow).

4. You can find the area under the curve using various methods, such as numerical integration, trapezoidal rule, or Simpson's rule, depending on the data points' distribution and the required accuracy.

Once you've calculated the area under the curve, that value will represent the amount of energy stored in the bow at full extension (0.5 m), which is E-bow.

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Answer:

None, egg cells don't have chromosomes. No, sex cells do have chromosomes. Meiosis reduces chromosome number so that sex cells (eggs and sperm) have a half set of chromosomes–one homolog of each pair. This is the haploid number.

Answer:

moderate

Explanation:

because light would be walking casually while vigorous would be sprinting or something like that

Explanation:

We have,

Mass of a box is 115 kg

Applied force is 424 N

It is required to find the frictional force of the floor on the box against you. Frictional force is an opposing force. It opposes the motion of an object. Here the applied force is 424 N. So, the frictional force has a magnitude of 424 N but it acts in opposite direction.

Answer:

0_8.0

8.0m/s

Explanation:

8.0m/s is the velocity of an object .

Yes, an equipotential line of 5v and -5v can be drawn, both will have the same shape and no work will be done in moving the 1 nC charge along the equipotential line.

Q2) Yes, an equipotential line of 5V can be drawn.

Equipotential lines are defined as a set of points that have the same potential difference relative to another set of points. It can be drawn as a circle or a sphere with the charge as the center.

Q3) Yes, an equipotential line of -5V can be drawn.

For example, if there is a negative point charge at the origin, the equipotential line of -5V would be a sphere centered at the origin with a radius such that the electric potential on its surface is -5V.

Q4) No, the shape of the equipotential line will remain the same in both cases. It will still be a circle or a sphere depending on the position of the charge. The only difference is the value of the potential difference associated with the equipotential line.

Q5) How much work is needed to move a 1 NC charge halfway along the equipotential line?

When a charge is moved from one point to another along an equipotential line, no work is done by the electric field. This is because the potential difference between the two points is zero, so there is no potential energy difference between the two points. Therefore, no work is needed to move a 1 NC charge halfway along the equipotential line.

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Answer:

velocity = displacement / time taken

velocity = 100/5

velocity = 20m/s

Answer:

Parallax, Hubbles law

Explanation:

Quizlet

Pollination is the transfer of pollen for plant fertilization

The correct responses are as follows;

The description of the changes that take place is included in this response

6 (i) The circuit arrangement is a parallel circuit arrangement

(ii) The advantages are;

(iii)  Lamp C glows the brightest

(iv) The total resistance is 4 Ω

The reason roe the above responses are as follows:

During the course of pollination, the pollen, through movement, finds it way to the germ-cell in the female ovary, where it fuses with the female egg (gamete) located inside the ovule

The resulting fertilization produces the zygote, which forms an embryo inside the ovule by dividing several times

A seed is formed from the ovule when it develops a tough coat, and by rapid growth a fruit is formed as the ovary matures

5 (i) The kind of combination, where all the wires that enters the bulb are joined on one side of the bulbs, and all the wires that comes from the bulbs are joined on the other end of the bulb, before joining the circuit is a parallel connection

(ii) The advantages of bulbs connected in parallel are;

(iii) The bulb that glows brightest is given by the bulb that consumes the most energy per unit time, and therefore, the bulb that has the most power

Power consumed by each bulb is given as follows;

Bulb A, \(P_A\) = 3 A × 60 V = 180 W

Bulb B, \(P_B\) = 4 A × 60 V = 240 W

Bulb C, \(P_C\) = 5 A × 60 V = 300 W

Bulb D, \(P_D\) = 3 A × 60 V = 240 W

The highest power used by a bulb is 300 W, by bulb C

Therefore;

Bulb C is the brightest bulb

(iv) The total resistance of the circuit is given as follows;

\(Total \ resistance =\dfrac{Circuit \ voltage}{Total \ current}\)

Total current, \(I_{tot}\) = 3 A + 4 A + 5 A + 3 A = 15 A

Circuit voltage, V = 60 V (Given)

Therefore, we have;

\(Total \ resistance =\dfrac{60 \, V}{15 \, A} = 4 \, \Omega\)

The total resistance is 4 Ω

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A coin falls off a table and is traveling to the ground. There is a net force on the coin which is responsible for the motion of the coin. Thus, the correct option is A.

The net force can be defined as is the sum of all the forces which are acting on an object. Net force acting upon an object can accelerate its mass. Some other forces also acts on a body either at rest or motion. The net force is used in a system when there is a significant number of forces acting on the object.

A coin which falls off a table and is still traveling to the ground. Then, it can be concluded that there is a net force which is acting on that coin which is responsible for the motion of the coin.

Therefore, the correct option is A.

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The runner's center of mass will be  0.40 meter raised during the jump.

Speed is distance travelled by the object per unit time. Due to having no direction and only having magnitude, speed is a scalar quantity With SI unit meter/second.

Initial vertical speed of the Olympic  runner = 2.8 m/s

Acceleration due to gravity = 9.8 m/s²

Mass of the Olympic  runner = 65 kg

Hence, the runner's center of mass will be raised during the jump

=  (Initial vertical speed )² ÷ (2 ×  Acceleration due to gravity)

= 2.8²/(2 ×9.8) meter

= 0.40 meter.

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If the right safety measures are implemented, explosives can be transported across great distances without blowing up since they need a precise combination of circumstances to detonate. A particular temperature, pressure, and confinement are some of these conditions. The explosive won't go off if these requirements are not met.

Explosives are kept in specialized containers during transit in order to prevent accidental detonation owing to environmental conditions like heat, shock, or pressure. The containers are made to keep the explosive from coming into contact with anything else that might set it off.

Additionally, the transportation of explosives is strictly regulated and subject to tight safety guidelines. These safety precautions guarantee that explosives are handled, transported, and stored safely to reduce the possibility of unintentional detonation.

Transporting explosives still entails inherent dangers, thus it should only be done by skilled experts who are aware of the necessary safety procedures and potential hazards.

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Answer:

0.18 A or 180 mA

Explanation:

\(I=\frac{V}{R} =\frac{9}{50} =0.18\)

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The chemical formula for dinitrogen tetroxide is C) N204.

Nitrogen that exists in its diatomic form, which is also known as molecular nitrogen or nitrogen gas, is referred to as dinitrogen. This form of nitrogen has two nitrogen atoms joined by a triple covalent bond, which satisfies the Lewis electron rules by having two lone, nonbonding electron pairs, one on each Nitrogen atom.

Whereas Dinitrogen tetroxide is colourless, Nitrogen dioxide is brown. As the temperature drops, the brown color's intensity falls. As a result, a drop in temperature results in a rise in Dinitrogen tetroxide. As temperature drops, equilibrium is pushed to the Dinitrogen tetroxide side.

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Answer:

69.42 m

Explanation:

From the question given above, the following data were obtained:

Initial velocity (vᵢ ) = 4.9 m/s

Acceleration (a) = 4.2 m/s²

Time (t) = 4.7 s

Displacement (Δx) =?

Thus, we can obtain the displacement by using the following formula:

Δx = vᵢt + ½at²

Δx = (4.9 × 4.7) + (½ × 4.2 × 4.7²)

Δx = 23.03 + (2.1 × 22.09)

Δx = 23.03 + 46.389

Δx = 69.419 ≈ 69.42 m

Thus, the distance travelled is 69.42 m

According to given statement, the velocity of the second hockey puck after the collision is approximately -23 m/s.

To find the velocity of the second hockey puck after the collision, we can use the principle of conservation of momentum. According to this principle, the total momentum before the collision is equal to the total momentum after the collision.

Before the collision, the first hockey puck has a mass of 0.17 kg and is traveling to the right at 15 m/s. The second hockey puck has a mass of 0.11 kg, and we need to find its velocity after the collision.

The momentum of an object is calculated by multiplying its mass by its velocity. So, the momentum of the first hockey puck before the collision is:

Momentum of first hockey puck before collision = mass of first hockey puck x velocity of first hockey puck
Momentum of first hockey puck before collision = 0.17 kg x 15 m/s
Momentum of first hockey puck before collision = 2.55 kg·m/s

Since the first hockey puck comes to rest after the collision, its final momentum is zero:

Momentum of first hockey puck after collision = 0 kg·m/s

According to the principle of conservation of momentum, the total momentum before the collision (2.55 kg·m/s) is equal to the total momentum after the collision (0 kg·m/s). Therefore, we can set up an equation:

Total momentum before collision = Total momentum after collision

(0.17 kg x15 m/s) + (0.11 kg x velocity of second hockey puck) = 0 kg·m/s

Now we can solve for the velocity of the second hockey puck after the collision:

0.17 kg x 15 m/s + 0.11 kg x velocity of second hockey puck = 0 kg·m/s
2.55 kg·m/s + 0.11 kg x velocity of second hockey puck = 0 kg·m/s

To isolate the velocity of the second hockey puck, we can subtract 2.55 kg·m/s from both sides of the equation:

0.11 kg x velocity of second hockey puck = -2.55 kg·m/s

Then, divide both sides of the equation by 0.11 kg to solve for the velocity:

velocity of second hockey puck = -2.55 kg·m/s / 0.11 kg
velocity of second hockey puck ≈ -23.18 m/s

The velocity of the second hockey puck after the collision is approximately -23 m/s.

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The maximum charge on the capacitor in an oscillating LC circuit is equal to the maximum voltage across the capacitor divided by the capacitance.

In an oscillating LC circuit, the capacitor and inductor exchange energy back and forth, causing the voltage and current to oscillate at a specific frequency. At the maximum voltage across the capacitor, all the energy is stored in the capacitor. The maximum voltage is given by Vmax = Qmax/C, where Qmax is the maximum charge on the capacitor and C is the capacitance. Therefore, the maximum charge on the capacitor is Qmax = Vmax x C.

An LC circuit consists of an inductor (L) and a capacitor (C) connected in series or parallel. When the circuit is allowed to oscillate, the energy in the circuit transfers between the inductor and the capacitor. The maximum charge on the capacitor occurs when all the energy in the circuit is stored in the capacitor, and none is stored in the inductor.
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Time taken by the car to travel 300 miles is 4.615 hours.

The speed of any moving object is the ratio of the distance traveled and the time taken to cover that distance.

Given is the distance d = 300 miles and the speed s = 65 miles/hour, then the time taken t will be

s=d/t

65 = 300/t

t= 4.615 hours

Thus, time taken by the car to travel 300 miles is 4.615 hours.

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Answer:

C

Explanation:

The substances are changed.

A chemical equation describes a chemical reaction. Reactants are starting materials and are written on the left-hand side of the equation. Products are the end result of the reaction and are written on the right-hand side of the equation .