All of the following objects are moving at the same speed. which one bas the greatest kinetic energy? (remember kinetic energy depends on mass and speed)

a. car

b. semi tractor-trailer truck

c. motorcycle

d. bicycle

What is the advantage of a free market economy?

What is the acceleration of an object with mass 42.6kg when an unbalanced force of 112N is applied

A charged object cannot attract a neutral object. a. True b. False

Use the drop-down menus to complete the statement. The difference between an electric motor and an electric generator is that a motor converts energy, while a generator converts energy into energy energy into

Which best describes the motion of the object between 1 and 4 seconds? The object has decreasing acceleration and increasing velocity. The object has positive acceleration and eventually stops.

The gravity of mercury is 3.7 n/kg. Find the mass of an astronaut who weights 241 Newton's on mercury

Why does oxygen have a lower ionization energy than nitrogen?

Traditional Indonesian music uses an ensemble called a gamelan that is based on tuned percussion instruments somewhat like gongs. In Bali, the gongs are often grouped in pairs that are slightly out of tune with each other.

An instrument used to detect a static electric charge is called an ammeter. a. true b. false

A heat engine has a cold reservoir of 250°C and a hot reservoir of 715°C. What is the efficienvy of the engine?