If circle a has a radius of 0.5 and circle b has a radius of 0.3, what is the difference in area between the two circles?

Exercising in hot weather can cause what side affects?

What is the distance traveled divided by the time taken to travel that distance? A. Acceleration C. Speed B. Velocity D. Inertia

Calculate a cars accerleration if it's speed is increased by 12ms-1 in a time of 3 seconds

Take the mass of the Earth to be 5.98E24. If the Earth's gravitational force causes a falling 96kg student to accelerate downward at 9.8 m/s^2 (g), determine the upward acceleration of the Earth during the student's fall. Answer in m/s^2.

Technician A says to use lineman's gloves when servicing the high voltage system on hybrid electric vehicles. Technician B says that hybrid vehicles have a plug to disable the high voltage system before service. Which technician is correct?

What is the expected wavelength (in cm) of 10.5 ghz microwaves in free space?

There are 5,280 feet in 1 mile and 12 inches in one foot. How many inches are in a mile?

An anion is an atom that has lost electrons. True or False?

Question: Jane, looking for Tarzan, is running at top speed (4.5 m/s) and grabs a vine hanging vertically from a tall tree in the jungle.

Kim holds a pinwheel in the air and says it can be used to model a source of energy. Identify the type of energy Kim's pinwheel models. Explain the type of energy source used.