A pool ball rolling at 10m/s[w] strikes a cushion and then rebounds at a velocity of 10m/s[s]. what is the change in velocity of the pool ball?

The Biot-Savart force law does not apply if the velocity is parallel to the field direction. a. True b. False

A space vehicle is traveling at 2980 km/h relative to Earth when the exhausted rocket motor is disengaged and sent backward. The relative speed between the motor and the command module is then 94 km/h.

What happens with the plates at this Juan de fuca

A wave with a frequency of 30 Hz has a wavelength of 40.5 m. How fast is the wave traveling?

What is the magnitude of g at a height above Earth's surface where free-fall acceleration equals 6.5m/s^2?

Which is a characteristic of an electromagnetic wave?

What does the ozone layer absorb? a. Microwaves c. UV radiation b. X-rays d. Infra-red radiation

An object is undergoing shm with period 0.900 s and amplitude 0.320 m. at t = 0 the object is at x = 0.320 m and is instantaneously at rest. calculate the time it takes the object to go (a) from x = 0.320 m to x = 0.160 m and (b) from x = 0.

Your friend states in a report that the average time required to circle a 1.0-mi track was 49.325 s. This was measured by timing 10 laps using a stopwatch with a precision of 0.01 s. Do you believe his results are reliable? Explain.

The forklift exerts a 300.0 N force on the box and moves it 15.0 m into the air. How much work does the forklift do? A. 500 J B. 1.50 * 10^3 J C. 4.50 * 10^3 J D. 0.00 J