Calculate the average speed (in km/hr) of Charlie whonruns to the store 4 km away in 30 minutes

Part complete during a collision with a wall, the velocity of a 0.200-kg ball changes from 20.0 m/s toward the wall to 12.0 m/s away from the wall. if the time the ball was in contact with the wall was 60.

Which is true about Pluto A.) it has nearly as circular orbit B.) it is larger than Titan Mercury and the moon C.) it is the only body in the solar system without an atmosphere D.) it orbits near the Kepler belt

The kind of friction that exists between oil and a door hinge

The starting motor of a car is turning too slowly, and the mechanic has to decide whether to replace the motor, the ca - ble, or the battery. The car's manual says that the 12 V battery should have no more than 0.

Total amount of charge present in 1 kg of electron

A flask containing neon gas is connected to an open-ended mercury manometer. The open end is exposed to the atmosphere, where the prevailing pressure is 745 torr. The mercury level in the open arm is 50.

1. f= 2. v= 3. 2 = 4. T= 8 m/s 8 sec 8 Hz 8 m Match the letters with the measurements

A skier speeds down a smooth ski slope which is at an angle of θ = 23° with the horizontal. The mass of the skier is 71 kg. Take the downhill direction to be positive and uphill to be negative.

An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a speed of 10.0 m/s in 3.30 s.

Why do skiers often wear sunglasses while they are skiing