Which best describes work? Select one of the options below as your answer:

a. holding a pencil

b. lifting a feather

c. dropping a ball

Why is soap solution a better cleansing agent than ordinary water?

a custodian pulls a vacuum 13.5 m with a 33.9 N force at a 55 degree angle, against a 14.1 N friction force. Find the work done by the custodian.

6. On a quiet day, the atmospheric pressure results in a force of about 10,0000 N on a window pane with an area of 1 square meter. a. Why does this large force not shatter the window? b.

Loss of fertility the loss of topsoil are ways soil can gain its value T or f

Which of the following describes the relationship between the weight of fluid displaced by an object and the buoyant force exerted on the object?

Roger sees water balloons fall past his window. He notices that each balloon strikes the sidewalk 0.51 s after passing his window. Roger's room is on the second floor, 10 m above the sidewalk.

Which statements accurately describe the Doppler effect?

Describe how mass and distance affect gravitational force.

a bike can climb the inclined road at uniform speed of 72 km/hr by applying force 500N what will be the power applied by the bike?

A wave has a wave length of 2 m and a frequency of 500 Hz, what is its speed?