A boy is inning with a kinetic energy of 810j. If the boy has a mass of 80kg. What is his speed?

5. Which of the following sets of conditions would result in the highest velocity for a sound wave traveling through air? A. A warm and humid day with a wind moving in the same direction as the sound B.

13. An object with a mass of 2.0 kg has a force of 4.0 newtons applied to it. What is the resulting acceleration of the object?

Select the volume units that are greater than one liter.

A wave has a frequency of 450 Hz and a wavelength of 0.52 m. What is the speed of the wave?

Two people carry identical 40.0 N boxes up a ramp. The ramp is 2.00 m long and rests on a platform that is 1.0 m high. One person walks up the ramp in 2.0 s and the other person walks up the ramp in 4.0 s.

Voltage can exist without A. current. B. resistance. C. a closed circuit. D. all of these

During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of 2.60 m/s, grabs and holds onto him so that they move off together with a velocity of 1.30 m/s.

What effect does an increase in temperature have on viscosity?

Aman tosses a jart upward with a velocity of 14.1 m/s a 60° angle

Describe accuracy, precision and best fit line.