Select the correct answer.

A car moves with an average speed of 45 miles/hour. How long does the car take to travel 90 miles?

А.

2 minutes

OB.

2 hours

OC.

45 minutes

OD

45 hours

E

90 minutes

Boyle's Law states that as the pressure on a gas increases at constant temperature the volume of the gas A) Increases B) Decreases C) Stays the same D) There is no relationship between pressure and volume

A 150 g egg is dropped from 3.0 meters. The egg is moving at 4.4 m/s right before it hits the ground. The egg comes to a stop in 0.072 seconds. What is the magnitude of force that the ground exerted on the egg? 0.66 N 9.2 N 13 N 180 N.

If an object with charge - 3 nC moves from a location that has a potential of - 20 V to a location with a potential of - 10 V, what has happened to the potential energy of the system?

Which of the following best describes the behavior of silica rich magma A. Highly viscous and associated with violent eruptions B. Highly viscous and associated with quiet volcanic eruptions C. Stays deep within earth because of low viscosity D.

What is the role of a commutator in an electric generator? It maintains the direction of current flow. It connects the generator to an external circuit. It provides the mechanical energy to rotate the wire coils.

Describe one example of competiton of tropical dry forest

What is the center of a tornado called A. the eye B. The center C. The middle road D. The vortex

Is it legal in Florida for a math teacher forces the kids to do push ups?

Acceleration is best defined as the rate of change of blank of an object

Zirconium has an atomic number of 40. How many neutrons are there in an isotope of zirconium-92?