A rifle with a longer barrel can fire bullets with a larger velocity than a rifle with a shorter barrel. a) Explain this using the impulse-momentum theorem. b) Explain this using the work-energy theorem

What are the dimensions of a square that has an area of 4cm^2

A boat is headed with a velocity of 18 meters/second toward the last with respect to the water in the river. if the river is Flowing with the velocity of 2.5 meters/second in the same direction as the boat.

When a pitcher throws a curve ball, the ball is given a fairly rapid spin?

An object that gives off electromagnetic waves based on it's temperature demonstrates which phenomenon

Heat from burning fuel warms the walls of the firebox section of the furnace in a. a compressor compartment. b. a hot-water heating system. c. an evaporation system. d. a hot-air heating system.

If a pressure gauge measure an increase in 3*10^ (5) Pa on an area of 0.7 m^2, calculate the increase in the force applied to the area?

Which of the following is an example of potential rather than kinetic energy? a. water rushing over Niagara Falls b. a molecule of glucose c. a crawling beetle foraging for food d. light flashes emitted by a firefly

If a force of 15 newtons [N] is applied to a surface and the pressure is measured as 4,000 pascals [Pa], what is the area of the surface in units of square milimeters [mm2 ]?

An engineer has the task of producing an aluminum alloy with a density of 3.0 grams per cubic centimeter. She comes up with the perfect alloy and saves a sample of it. Which mass and volume measurements correspond to this sample? 7 g and 2.

What must be your car's average speed in order to travel 235km in 3.25 hours?