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Alexxandr [17]
3 years ago
6

A 1200kg car is driving at 40m/s on a wet asphalt road. If the driver slams on the brakes and the car skids to a halt. a)What is

the Force of friction acting on the car?
b) What would the force of friction be if the road was dry?

c) Will the car go farther when the road is wet or dry? Explain
Physics
2 answers:
qwelly [4]3 years ago
8 0

Answer:

It's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadnessIt's Meme Time, it's Meme Time

Gather all your friends, it's Meme Time

It's Meme Time, it's Meme Time

The only cure for sadness

Explanation:

ycow [4]3 years ago
6 0

Answer:

the answer is B

Explanation:

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Using technology is was to help motivate you and keep track of distances and times while fitness walking
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A 100 kg individual consumes 1200 kcal of food energy a day. Calculate
IrinaK [193]

Answer:

(a) 5142.86 m

(b) 317.5 m/s

(c) 49.3 degree C

Explanation:

m = 100 kg, Q = 1200 kcal = 1200 x 1000 x 4.2 = 504 x 10^4 J

(a) Let the altitude be h

Q = m x g x h

504 x 10^4 = 100 x 9.8 x h

h = 5142.86 m

(b) Let v be the speed

Q = 1/2 m v^2

504 x 10^4 =  1/2 x 100 x v^2

v = 317.5 m/s

(c) The temperature of normal human body, T1 = 37 degree C

Let the final temperature is T2.

Q = m x c x (T2 - T1)

504 x 10^4 = 100 x 4.1 x 1000 x (T2 - 37)

T2 = 49.3 degree C

4 0
3 years ago
How is it possible to lift a heavy car with a small force?
Fed [463]

Answer:

By applying relative small force to the smaller piston

Explanation:

If a car sits on top of the large piston, it can be lifted by applying a relatively small force to the smaller piston, the ratio of the forces being equal to the ratio of the areas of the pistons

5 0
2 years ago
A car starting from rest accelerates uniformly at 4.3 m/s^2 for 5.0 seconds. How far does the car move?
andreev551 [17]

Answer:

Vf = 21.5 [m/s]

Explanation:

To solve this problem we must use the following kinematics equation:

v_{f}= v_{i} +(a*t)\\

where:

Vf = final velocity [m/s]

Vi = initial velocity = 0

a = aceleration = 4.3 [m/s^2]

t = time = 5 [s]

Now replacing:

Vf = 0 + (4.3*5)

Vf = 21.5 [m/s]

8 0
3 years ago
A 2 m long wire carrying 2 A of current pointing to the right is placed in a magnetic field of 4 T directed away from you. Which
galina1969 [7]

When a 2 m long wire carrying 2 A of current pointing to the right is placed in a magnetic field of 4 T directed away from you then the force on the wire point down, therefore the correct option is D

<h3>What is a magnetic field?</h3>

A magnetic field could be understood as an area around a magnet, magnetic material, or an electric charge in which magnetic force is exerted.

According to Fleming's left-hand rule, A force perpendicular to the field and the direction of the current flow is experienced by a current-carrying conductor when it is placed in an external magnetic field.

Thus, The correct answer is D because the force on a 2 m long wire carrying 2 A of current pointing to the right when placed in a magnetic field of 4 T directed away from you causes the wire to point downward.

Learn more about the magnetic fields from here

brainly.com/question/23096032

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5 0
2 years ago
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