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5 m wire made of gold ( ρgold = 2.4 x 10−8 ) has a cross-sectional area of 2 mm.

Calculate the voltage if a 32 A current runs through the wire.

What is the momentum of a 0.04kg bullet moving north at a rate of 1500m/s?

What are the given:

What is asked in the problem:

Formula to use.

Solution:

The ball dropped at 7m building has a velocity of 2.5m/s, it reaches the ground at

10.2s? What is the distance travelled by the ball?

What are the given:

What is asked in the problem:

Formula to use:

Solution:

An improvised billiard ball is used in a local play where a 35 gram billiard ball resting in a corner is suddenly

hit by another 45 grams ball moving 0.5 m/s. After the collision, the 45 grams ball remains at rest while the

other ball moves away. Find the velocity of the ball moving away ?

If the gravitational field strength at the top of Mount Everest is 9.772 N/kg, approximately how tall (in

feet) is the mountain?

A 1450-kg

car is traveling with an initial speed of 24.0 m/s.

Determine the car's speed after −1.90 **✕** 10^{5} J

of net work is done on the car.

**Question 5.2b:**

A 11.8-kg

box is sliding across a horizontal floor. It has an initial speed of 1.45 m/s

and the only force acting on it is kinetic friction with magnitude *f*_{k} = 2.65 N.

Determine the distance the box will travel before coming to rest.