A student standing on a roof throws a ball toward the sky. He then tries to make an energy transfer diagram for the ball. What should go in the blank in the diagram? A) Heat energy B) Light energy C) Useful energy D) Electrical energy

The equations of kinematics describe the motion of an objectthat has a constant accleration. These equations cannot beapplied to uniform circular motion. Why not?

Why is a torque wrench necessary totighten bolts correctly on an engine head cover that sits on a gasket between it and the engine block? What might happen if a regular wrench is used to tighten the bolts?

Convert 2 m to yards

How does the relative motion of a motorcycle affect the frequency of the sound heard by an observer on the sidewalk? As the motorcycle approaches the observer, the frequency drops. As the motorcycle approaches the observer, the frequency increases.

A man walks 600 m [E47°N], then 500 m [N38°W], then 300 m [W29°S], and finally 400 m [S13°E]. Find his resultant displacement.

Intramolecular and intermolecular forces hold together which of the following? A. atoms within a molecule B. molecules within an object C. charged particles within a salt crystal D. the atoms within compounds E. all of the above

Why is it that a football does not stay in motion at a constant speed when thrown, as the First Law of Motion suggests that it would? 1) Air resistance and acceleration 2) Gravity and mass 3) Distance, mass and gravity 4) Air resistance and gravity

A student pulls a box across a horizontal floor at a constant speed of 4.0 meters per second by exerting a constant horizontal force of 45 newtons. approximately how much work does the student do against friction in moving the box 5.

The percentage of water vapor in the air compared to the maximum amount of water vapor that air can contain at a particular temperature.

A piano emits frequencies that range from a low of about 28 hertz to a high of about 4200 hz. find the range of wavelength in air attained by this instrument when the speed of sound in air in 342m / s