Group 2 and Group 3 stars represent which stages of development? Describe these groups in terms of their relative age, size, brightness, and temperature.

Early one February morning you go outside to build a snow man. You make a 3.2kg snowball and lift it to a height of 1.2m, then carry it 25m on level ground with a force of 1.

Since a kilogram of feathers and a kilogram of lead have the same mass, how do they appear different and why?

In a certain cyclotron a proton moves in a circle of radius 0.670 m. The magnitude of the magnetic field is 1.30 T. (a) What is the oscillator frequency? (b) What is the kinetic energy of the proton?

Hypokinetic means: a. water exercise. b. too little exercise. c. too little pressure. d. infectious

Mountain ranges and belts are built through the process called what

If the frequency of an electromagnetic wave is increased, what happens to the energy?

Under what circumstances will a binary star produce a nova?

You swing a bat and hit a heavy box with a force of 1500 n. the force the box exerts on the bat is

Which type of acceleration would be best if you were merging onto the interstate?

What happens to the sound as frequency decreases? * a. it gets higher pitched b. it gets lower pitched c. it gets louder d. it gets quieter