When we measure the broadening of absorption lines in the spectrum of an elliptical galaxy, we can infer.

How does the ocean influence the weather in california

A 750-newton person stands in an elevator that isaccelerating downward. The upward force of theelevator floor on the person must be (1) equal to 0 N (3) equal to 750 N (2) less than 750 N (4) greater than 750 N

What tectonic feature lies along chinas chinas eastern border

A glass flask has a volume of 500 mL at a temperature of 20° C. The flask contains 492 mL of mercury at an equilibrium temperature of 20° C. The temperature is raised until the mercury reaches the 500 mL reference mark.

A 1.9 kg ball drops vertically onto a floor, hitting with a speed of 25 m/s. It rebounds with an initial speed of 9.0 m/s. (a) What impulse acts on the ball during the contact? (b) If the ball is in contact with the floor for 0.

What forces are acting on matter through contact or no contact

Consider the following when writing your report: a) Start by making a rough plan for how you will solve the problem. In particular, divide the big problem into two or more smaller problems that each involves one basic physics idea.

Two children are bouncing small rubber balls. One child simply drops a ball. At the same time, the second child throws a ball downward so that it has an initial speed of 10 m/s. What is the acceleration of each ball while in motion?

If a girl makes a homemade sling shot that requires a force of 14 N to pull it's pebble (.08kg) into place at 0.1 m from the resting position of the sling shot, the maximum velocity of the pebble will be

A weightlifter raises a 200-kg barbell with an acceleration of 3 m/s^2. How much force does the weightlifter use to raise the barbell?