Which variable stars have pulsation periods between 1.5 hours and 1.2 days?

A. Cepheid variables

B. Protostars

C. RR Lyrae variables

D. Nebulas

When a substance changes from one type of matter to another it has had a?

I traveled 10m north, and 5m south. What distance did I traveled

Define, compare and contrast distance and displacement

A tight rope walker traverses a wire with the aid of a balancing pole. The moment of inertia of the person about their COG (Iperson) is 15 kg m^2. The moment of inertia of the pole about its COG (Ipole) is 250 kg m^2.

g Two streams merge to form a river. One stream has a width of 8.7 m, depth of 3.6 m, and current speed of 2.4 m/s. The other stream is 6.8 m wide and 3.4 m deep, and flows at 2.4 m/s. If the river has width 11.9 m and speed 2.

Contrast balanced and unbalanced forces.

A wave will travel only as long as it has energy

a box sliding on a frictionless surface when it suddenly begins to rain heavily. if the downpour of rainfall falls vertically into the box, gradually filling it, what would happen to the speed of the box

Which would fall with a greater acceleration in a vacuum-a leaf or a stone?

A force acts on a 5kg object at rest. How fast will the object accelerate on a frictionless surface? A.) 4 m/s^2 B.) 15 m/s^2 C.) 25 m/s^2 D.) 100 m/s^2