A boy is pulling a wagon with the force of 5N. A girl is pushing on the same wagon in the same direction with a force of 3N. What is the new force acting on this wagon?

When lava cools, which type of rock forms?

When recording live performances, sound engineers often use a microphone with a cardioids pickup pattern because it suppresses noise from the audience.

When the change in momentum occurs over an extended period of time, the force of impact is:?

Which property is expressed in g/cm3? A. density B. mass C. volume D. buoyancy

Railroad car A rolls at a certain speed and makes a perfectly elastic collision with car B of the same mass. After the collision, car A is observed to be at rest. How does the speed of car B compare with the initial speed of car A?

An example of renewable energy resource is ... A - uranium B - Wind C - natural gas

The power of a 1.5-volt alkaline cell varies with the number of hours of operation. A brand new D-cell can deliver as much as 13 A through a copper wire connected between terminals. Determine the power of a brand new D-cell.

You measure a watch's hour and minute hands to be 7.4 mm and 12.1 mm long, respectively. Part A In one day, by how much does the distance traveled by the tip of the minute hand exceed the distance traveled by the tip of the hour hand?

Describe the possible long term impact of a catastrophic event

Calculate the mass defect of the helium nucleus 42He. The mass of neutral 42He is given by MHe=4.002603u.