In the physics of motion a force acting over a distance is?

A) List two instances when increasing friction is desirable. B) List two instances when decreasing friction is desirable.

A plane flying due east at 395 km/h, is hit by wind blowing at 55 km/h toward the west. what is the resultant velocity of the plane?

A lava flow is an example of what igneous rock

If one object is hot and another one cold, thermal energy A: Will move from the cold object to the hot one. B: Will move from the hot object to the cold one. C: Will move back and forth between the hot and cold objects. D: Will not move at all.

The electric force between two charged objects is influenced by

Which of the following is a vector quantity? A. 83 ounces of liquid B. 55 km/hr in a truck C. 15 seconds of travel D. 10 m/s down

Which of the following best describes the ultraviolet catastrophe of blackbody radiation? A. As energy is added to an object acting as a blackbody radiator, its emissions move to the ultraviolet part of the electromagnetic spectrum. B.

Is an engine-activated booster unit that reduces the effort required to apply the hydraulic brakes

A box is lowered using a rope. If the acceleration of the box, is 2.5 m/s2 (downward) and the tension in the rope is 31 N, what is the mass of the box (in kg) ?

On a very hot summer day, the rooms on the first floor of a house stay cooler than the rooms on the second. Which form of thermal energy flow causes this to occur? A) Conduction B) Convection C) Kinetic D) Radiation