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algol13
3 years ago
6

1. If a car travels 400m in 20 seconds how fast is it going?

Physics
1 answer:
Marrrta [24]3 years ago
5 0

Answer:

1) 20 m/s

2) 5 m/s

3) 2 m/s

4) 395,000m/9000s

5) 16 km/0.25h

Explanation:

i dunno

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gayaneshka [121]
There are three main ways a late<span> or missed </span>payment<span> can impact you financially: You can be charged </span>late payment fees<span>. You may face having the interest rate on your card raised to the penalty rate. Your </span>late payment<span> may be added to your credit history and can end up affecting your credit score.</span>
8 0
3 years ago
What is a velocity of an object with a momentum of 300 kg m/s and the mass of 100 kg​
Brilliant_brown [7]

Answer:

v = 3 m/s

Explanation:

P is the momentum

m is the mass

v is the velocity

P = m•v

300 = 100•v Divide both sides per 100

300/100 = v

v = 3 m/s

5 0
3 years ago
Read 2 more answers
What is the difference between air resistance and friction? ​
Vladimir [108]

Answer:Friction is a force that opposes the motion of objects; friction can cause objects to slow down. Air resistance is a type of friction. Air resistance causes moving objects to slow down. Different physical properties, such as the shape of an object, affect the air resistance on an object.

Explanation:

5 0
1 year ago
The force exerted on an object when it is in contact with another object as it moves or tries to move is?
Paraphin [41]
I think that friction is the force exerted on an object when it is in contact with another object as it moves or tries to move.
6 0
3 years ago
the spring was compressed three times farther and then the block is released, the work done on the block by the spring as it acc
frosja888 [35]

Answer:

The work done on the block by the spring as it accelerates the block is 4kx².

Explanation:

Let initial distance is x.

It was compressed three times farther and then the block is released, new distance is 3x.

The work done in compressing the spring is given by :

W=\dfrac{1}{2}k(x_2^2-x_1^2)

W=\dfrac{1}{2}k(x_2^2-x_1^2)\\\\W=\dfrac{1}{2}k((3x)^2-x^2)\\\\W=\dfrac{1}{2}k((9x^2-x^2)\\\\W=\dfrac{1}{2}k\times 8x^2\\\\W=4kx^2

So, the work done on the block by the spring as it accelerates the block is 4kx².

8 0
3 years ago
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