How much work must be done on a 5-kg sled to increase its speed from 10

m/s to 15 m/s?

A. 25

B. 312.5 J

C. 562.5 J

D. 5

Crystal is trying to get in shape for softball season so she takes a hip pop dance class at the gym for 45 minutes three days a week she wears a heart rate monitor and finds that her heart rate reaches one 25 bpm but her target heart rate zone is

Which factors are involved in earthquake formation? Check all that apply. plates moving rocks breaking stress that decreases faults that remain stationary movement below the surface

A person kicks a rock horizontally off a cliff with a speed of 35m/s. It takes 12 seconds to hit the ground below (don't forget your units). What is the height of the cliff? What is the final vertical velocity? What is the range?

How far away from the sun would a planet mercury's size have to be before it would have an atmosphere?

As a wave travels through a medium, it displaces particles in a direction parallel to the motion of the wave. We can conclude this is a

What happens to the acceleration of an object is its mass doubles?

The angle a vector makes with the x-axis of a coordinate system must be what size in order to make one or more of its components negative?

How would you calculate power if work is not done?

Equipotential surface A has a potential of 5650 V, while equipotential surface B has a potential of 7850 V. A particle has a mass of 5.40 10-2 kg and a charge of 5.10 10-5 C. The particle has a speed of 2.00 m/s on surface A.

Scientists develop theories to explain natural events. What causes scientists to reject even long-held theories and replace them with newer theories?