1. When a particle moves in a circle with constant speed, its acceleration is

A) constantly increasing.

constant in direction.

C) zero.

D) constant in magnitude.

E) constant in magnitude and direction.

What is the refractive index of a solution that has a critical angle of 40.8° with respect to air? The refracting index of air is 1.00.

Suppose a thick nimbostratus cloud contains ice crystals and cloud droplets all about the same size. Which precipitation process will be most important in producing rain from this cloud? Why?

Select all that apply. Which of the following statements are true? Positively charged objects attract other positively charged objects, Negatively charged objects attract other negotively charged objects Positively charged objects attract negatively

To simulate deafness, put ear plugs or cotton balls into your ears and put your hands over your ears to block out all sound. Describe this experience in terms of how it changed your perceptions of your environment and how it made you feel.

G=fr²/m, m² where G is the gravitational constant "r" is the distance between two masses "m" and "m²" and "f" is the gravitational force between two masses

A car with a mass of 1,500 kg doubles its speed from 50 km/h to 100 km/h. by how many times does the kinetic energy of the car increase

3. Is there a way to dissolve more sugar into a solution that it should hold at that temperature? Explain how this is done and what the solution would be called.

Like matter, energy cycles continuously through an ecosystem. a. True b. False User: Like matter, energy cycles continuously through an ecosystem. True or False

A room is being accelerated through space at 7 m/s2 relative to the "fixed stars." it is far away from any massive objects. if a man weighs 500 n when he is at rest on earth, how much will he weigh in the room?

About what is Rigel's surface temperature?