Determine the magnitudes of the two components of f along members ab and ac. set f = 500 n

They all have the same average kinetic energy, which is directly proportional to their temperature. This is a consequence of the kinetic theory of gases, which states that the average kinetic energy of gas molecules is directly proportional to the temperature of the gas.

The masses and average velocities of the gases, on the other hand, can vary widely depending on the type of gas. Heavier gases, such as carbon dioxide, will have lower average velocities compared to lighter gases, such as helium, at the same temperature. However, despite these differences, all gases in the mixture will have the same average kinetic energy as long as they are at the same temperature. This is an important principle in thermodynamics, which helps us understand the behaviour of gases under different conditions.

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The friction force required to keep the car from sliding is 9000N.

mass of car, m = 1000 kg

speed , v = 30 m/s

diameter , d = 0.2 km

r = 100 m

for the car to keep from sliding frictional force is required, ff = m*v^2/r

ff = 1000 * 30^2 /100

ff = 9000 N

the friction force required is 9000 N

Simply put, an unbanked curve (or turn) is a curve that is flat on the ground (parallel to the horizontal). A force of friction applies to the car as it drives along one of these curves, keeping it rotating in a circular course.

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Answer:

Specific heat capacity, = 1.43 J/g°C

Explanation:

Given the following data;

Mass = 10 g

Change in temperature = 140°C

Quantity of heat = 2000 J

To find the specific heat capacity;

Heat capacity is given by the formula;

\( Q = mcdt\)

Where;

Making c the subject of formula, we have;

\( c = \frac {Q}{mdt} \)

Substituting into the equation, we have;

\( c = \frac {2000}{10*140} \)

\( c = \frac {2000}{1400} \)

Specific heat capacity, = 1.43 J/g°C

The electric potential is 27.2V

Electric potential is given by equation: V = kq/r

where,

k =  Coulomb's constant = 9 ×10⁹ N m²/C²

r =  Radius = 0.53×10⁻¹⁰ m

Putting these values in above equation we get:

V = (9 ×10⁹)(1.6 × 10⁻¹⁹)/( 0.53×10⁻¹⁰) = 27.2 V

So the electric potential is 27.2V

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Answer:

Because it’s imposible

9514 1404 393

Answer:

  8.04 m/s²

Explanation:

A suitable formula is ...

  v² = 2ad

  a = v²/(2d) = (45 m/s)²/(2(126 m))

  a ≈ 8.04 m/s²

The acceleration is about 8.04 m/s².

Answer:

scalar

is the correct answers

Answer:

Scalar

Explanation:

Mph, cubic feet,pounds, and hours are scalar terms

We cannot determine the change in resistance due to a change in temperature.

The temperature coefficient of resistivity (alpha) of a substance measures how its resistivity changes with temperature. The formula for finding the change in resistance of a conductor due to a change in temperature is:ATR=alpha * R * ATT

where R is the original resistance of the conductor, ATT is the change in temperature, and ATR is the change in resistance. So, ATR = alpha * R * ATT

For a conductor made of a material whose temperature coefficient of resistivity is 3.810° rap, the change in resistance when the temperature rises by ATTT degrees Celsius is given by:ATR = (3.810 × 10⁻³⁰/°C) × R × ATTTwhere R is the original resistance of the conductor.The problem does not give us the original resistance of the conductor.

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ANSWER

Q = 5303.95 kJ

EXPLANATION

We are looking for the energy needed to evaporate 2.35kg of water. Since the water is already at evaporation temperature, which is 100°C, we just have to use latent heat. Also, we just want the steam to be at 100°C, so we don't need to find the energy to change its temperature.

The energy needed to evaporate water of mass m is:

L is the latent heat of the material, in this case water. There are two latent heats, one of fusion and one of vaporization. We have to use the second one, which for water is approximately 2257 kJ/kg

Therefore, to boil 2.35 kg of water at 100°C to steam at 100°C we need:

It is true that Newton's first law states that an object in motion will stay in motion unless acted upon by external force.

Another name for Newton's first law of motion is the law of inertia. According to this law, unless an external force acts upon an object, it will continue to be at rest or move at a constant speed.

An object's motion will not change unless something outside of the object causes it to change. This law helps us explain why objects tend to keep doing what they are already doing unless something happens to stop them or change their motion.

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Answer:

I'm pretty sure the answer to this question is c.

Answer:

FALSE

Explanation:

You breath in oxygen and your blood takes it through your body then you breath it out as carbon dioxide

Answer:

Bcz it depends on fundamental units

Force = mass × acceleration

80 = M × 195

M = 80/195

M ≈ 0,4 kilograms

Answer:

F=ma

a=F/m

so kickball having less mass will result to more acceleration

Explanation: i said so andddd when i put this it said it was right hehe

The inverse square law is a principle in physics that states that the intensity or strength of a particular phenomenon (such as light, sound, or gravity) decreases in proportion to the square of the distance from the source of the phenomenon. The formula for the inverse square law is I = P/(4pir^2) where I is the intensity of the phenomenon, P is the power of the source, r is the distance from the source, and pi is a mathematical constant.

To understand the inverse square law, consider a lightbulb as an example. If you were to measure the intensity of the light coming from the lightbulb at a distance of 1 meter, and then measure it again at a distance of 2 meters, you would find that the intensity at the second point is one-fourth of the intensity at the first point. This is because the light is spreading out over a larger area (the surface of a sphere with a radius of 2 meters) as it travels away from the source, and the intensity is distributed over that larger area.

The inverse square law applies to any phenomenon that spreads out in a spherical shape as it travels away from its source. This includes light, sound, and gravity. For example, in the case of gravity, the force of attraction between two objects decreases in proportion to the square of the distance between them. So if you were to double the distance between two objects, the force of attraction between them would be one-fourth of what it was before.

It's important to note that the inverse square law only applies in three-dimensional space. In two-dimensional space, the intensity decreases proportionally to the distance squared.

In summary, the inverse square law states that the intensity of a phenomenon decreases as the distance from its source increases, in proportion to the square of the distance. This principle is important in many areas of physics and engineering, from understanding the behavior of light and sound to designing systems that use or interact with these phenomena.

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Answer:

I'm not 100% sure but I think its Cell membrane

Explanation:

please, correct me if i'm wrong.

NASA's space shuttle program in Florida will end in 2011. Increase in tourism and decrease in use of space technologies in homes would be the most likely outcome of this event on the locations near the space center.

The U.S. federal government's autonomous National Aeronautics and Space Administration (NASA) is in charge of the civil space programme, as well as space and aeronautics research.

NASA was created in 1958 to provide the American space development effort a distinctly civilian orientation, stressing peaceful applications in space science. It succeeded the National Advisory Committee for Aeronautics (NACA).

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Answer:

17.27 Hz

Explanation:

Applying

v = λf................ Equation 1

Where v = speed of the car, λ = Distance between successive crevice, f = number of crevice moved in 1 seconds(Frequency of the vibration)

make f the subject of the equation

f = v/λ............. Equation 2

From the question,

Given: v = 38 m/s, λ = 2.2 m

Substitute these values into equation 2

f = 38/2.2

f = 17.27 Hz

To have the right foods for any health problem such as a food allergy, check the food package or label to know the right serving.

A food label is any piece of information contained in a food package that tells you how many calories and how much fat, protein, carbohydrates, and other nutrients are in one food serving.

Many packaged foods contain more than a single serving.

Thus, when you plan a meal you should try to have the right foods for any health problem such as a food allergy. For example the food package or label to know the right serving.

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Answer:

\(v_y = 5\ m/s\)

Explanation:

The vertical downward component of the speed of the bike can be simply found out by using the following geometric formula:

\(v_y = vSin\theta\)

where,

\(v_y\) = vertical downward component of speed = ?

v = speed = 10 m/s

θ = angle of slope = 30°

Therefore,

\(v_y = (10\ m/s)Sin\ 30^o\\v_y = 5\ m/s\)

Answer:

A

Explanation:

if he goes to the west, the east is opposite so 100-30

The jogger's displacement was 70 meters. Hence, option (a) is correct answer.

The term "displacement" refers to a shift in an object's position. The symbol for it is an arrow pointing from the initial location to the ending place.

Displacement is a vector quantity as both magnitude and direction are required for defining displacement. SI unit of Displacement is meter.

Given parameter:

The first displacement of the jogger is = 100 meters along west  direction.

The second displacement of the jogger is = 30 meters along east direction.

Hence, resultant displacement of the jogger along west  direction = 100 meters - 30 meters

= 70 meters.

Hence,  the magnitude of jogger's displacement was 70 meters. Hence, option (a) is correct answer.

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The speed of the mass at position A and B is approximately 0 m/s and 7.67 m/s respectively.

To determine the speed of the mass at positions A and B, use the principles of conservation of energy.

At position A, the ball is at its highest point on the slope. No kinetic energy. Equate the potential energy at A to the kinetic energy at position B, where the ball has traveled a distance of 4.00 m downhill.

Using the conservation of energy equation:

Potential Energy at A = Kinetic Energy at B

mghA = (1/2)mvB²

Where:

m = mass of the ball (which cancels out in this equation)

g = acceleration due to gravity (9.8 m/s²)

hA = height at position A (3.00 m)

vB = speed at position B (to be determined)

Substituting the given values:

(9.8 m/s²) × (3.00 m) = (1/2) × vB²

29.4 = 0.5 × vB²

Dividing both sides by 0.5:

58.8 = vB²

Taking the square root of both sides:

vB ≈ 7.67 m/s

Therefore, the speed of the mass at position B is approximately 7.67 m/s.

At position A, the speed of the mass is 0 m/s since it has reached its highest point and momentarily comes to a stop before descending.

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Answer:

B. Current increases because it is directly proportional to voltage

Explanation:

Ohms law is used to show the relationship between the current, voltage and resistance of a substance. The Ohms law equation is as follows:

V = IR

Where;

V = voltage (volts)

I = current (amperes)

R = resistance (ohms)

Based on these equation, it is evident that the current (I) is directly proportional to the voltage (V), hence, as the voltage increases, the current also increases. According to this question, when the voltage is tripled (increased), the current also increases because it is directly proportional to voltage.

Answer:

A. 3.0m/s

Explanation: Average speed = total distance/ total time. So 60/20=3.0m/s

Answer:

1)10 m/s

2) 20 m/s

3) 2 s

4) 500 m

5)1000 km/h

Average speed = distance travelled / time.

( note: distance must be in (m) and time in sec, if not then you convert ).

1) average speed = 20/2 = 10mls.

2) average speed = 100/5 = 20 m/s.

3) since we aren't given (time) let's call it x

so we replace the unknown time with x..

average speed = 2/x = 1

then cross multiply

you get x (the unknown time) as 2s {seconds}.

(to check if it's correct just add the time we got back into the equation and see if you would get a erage speed as 1m/s).

4) do the same, replace distance as x or any letter you want )

average speed = x/ 10 = 50

cross multiply

you get x = 500m {meters}

5) (we need to convert km to meters and time to secs because that's what we are working with).

200km = 200,000 m { to convert to meters you multiply the given by 1000, 1km = 1000m).

for 2h, we know that:

60 seconds makes 1 minute

60 minutes makes an hour.

so we multiply 60 by 60 we get 3600mins then we multiply it by 2 to get 7200 secs

so now

Average speed = 200,000/7200 = 27.77 m/s.

Here you go..

hope this helps

Good luck and ace that test.

Answer:

the answer is C

Explanation:

because the moon has to be in front of the sun hope this helps

Explanation:

may be (C) is the correct answer .

Milliliters (ml) or cubic millimetres are the most suitable units for calculating a raindrop's volume (mm3).

Raindrops are quite tiny and usually have volumes between 0.1 and 0.5 millilitres. Small, precise volume measures like millilitres or cubic millimetres are ideal for measuring these volumes.

A raindrop's volume can change depending on its size and form, as well as external conditions like air pressure and temperature.

For measuring the volume of a single raindrop, units of volume such as litres or cubic metres are too vast and would not offer sufficient precision. Thus, the units that are best suited for measuring the volume of a raindrop are millilitres or cubic millimetres.

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