500 J of work are done in 4 seconds to lift a 40 kg box to the top of a high shelf. How much power was required to complete the lift?

The main purpose of the turbine in the turbo jet engine is to

Which force acts as an object to move it from rest or a constant straight-line motion? A. unbalanced B. Along a straight line C. Inertial D. Balanced

Describe the results of Ernest Rutherford's gold-foil experiment and explain how his results changed ideas about the distribution of positive charge within the atom.

What are the equations used to describe work?

Which is the work required to move a charge?

A particle that is composed of two up quarks and one down quark is a (1) meson (3) proton (2) neutron (4) positron

Car headlights have both low beams and high beams. The high beams may be necessary when it is very dark outside. If the power for the high beam is 60.0 watts and the current is 5.0 amps, how much voltage is required?

Tsunami waves are almost the same as ripples caused by throwing a rock into a pond. what is the major difference between the two?

A hot air balloon pilot wants the balloon to quickly rise several feet higher so it will be above some trees in the distance. Which best explains how the pilot can make the balloon rise? 1.

The density of pine is generally about 0.5 g/cm3. What is the mass of a 800 cm3 piece of pine Download pdf