Which describes acceleration involving only a change in direction?

A. moving at constant speed around a circular track

B. moving at increasing speed around a curve

C. an object in free fall

D. an object at rest

A hole of 1 mm² is punched in a full 1-liter milk carton, 5 cm from the bottom. What is the initial speed of the outflow?

Materials that allow the charges of an electric current to move freely through them are called a. insulators. b. conductors. c. resistors. d. magnets.

Why can you express the volume of a 12-sided object measured by this method in cubic units?

Astronomers are comparing two stars that are known to have the same luminosity. Star A is observed to be 4 times brighter than star B. How far away is Star A compared to Star B? 2 times closer 4 times closer 2 times farther 16 times closer

How is an electron cloud like the blades of the fan?

What will a spring scale read for the weight of a 75.0-kg woman in an elevator that moves upward with constant speed of 5.8 m/s?

What's the definition of: • cellular respiration • photosynthesis

What are the steps that are important to take for your safety during an earthquake? a. stay away from walls and windows c. stay away from electrical and gas lines b. get under a desk or table d. all of the above

You have an open air column of length 1.40 m in air at 24.2 °C. What is the frequency of the third harmonic?

Why do we use average force while solving momentum problems? How is net force related to the momentum of the object?