A person rubs her hands together and they heat up

• kinetic energy

• light energy

• sound energy

• electrical energy

• chemical energy

• heat energy

(multiple choice)

A wave is traveling at a speed of 15 m/s and its wavelength is 3 m. Calculate the wave's frequency.

To increase the current in a circuit what must be done

What is the source of energy across the entire spectrum

A jet fighter flying at 300 m/s (just below the speed of sound) makes a turn of radius 1.85 km. (a) what is its centripetal acceleration in gs?

Consider the following statements. A. Heat flows from an object at higher temperature to an object at lower temperature; B. Heat flows from an object in liquid state to an object in solid state; C.

A 75.0 kg person stands on a scale in an elevator. (a) What does the scale read (in N and in kg) when the elevator is at rest?

The hinge at A and cable BDC support beam ABC. Cable BDC passes over the pulley D that is pinned to the ceiling. (Assume that the + x-axis is to the right and the + y-axis is up along the page.

The "zone of avoidance" a) Accounts for the absence of any planet between the orbits of Mars and Jupiter Prevents collisions between planets in the Solar System.

Electric current is ...

What type of ethic is life-centered and views humans as just one component life on Earth