Suppose that you measure a galaxy's redshift, and from the redshift you determine that its recession velocity is 30,000 (3*104 kilometers per second. according to hubble's law, approximately how far away is the galaxy?

A space shuttle in orbit around the earth carries its payload with its mechanical arm. suddenly, the arm malfunctions and releases the payload. part a what will happen to the payload?

Why does the frequency of a wave decrease as the wavelength increases?

The vacuum inside the thermos bottle shown in Figure 16-1 stops which type of thermal energy transfer to keep the liquid hot

Which waves can travel through both solids and liquids? Which waves can travel only through solids? Which waves can make dramatic ground movements? Which waves can compress and expand the ground like an accordion?

How to find initial velocity, when the acceleration is slowing down.

How would you explain photosynthesis to a new student in class

If the abosolute of a gas is 600 k, the temperature in degrees Celsius is

How does an electromagnetic wave propagate itself? a. A changing magnetic field induces an electric field perpendicular to the magnetic field. b. A changing electric field induces a magnetic field perpendicular to the electric field. c.

Which of the following is an example of convection? A. hot air rising and cooler air falling B. a hot object transferring heat to a cooler one C. a hot oven warming the air around it D. the rays of the Sun warming the earth

A 50,000 kg locomotive is traveling at 10 m/s when its engine and brakes both fail. How far will the locomotive roll before it comes to a stop? Assume the track is level.