You observe a distant galaxy. you find that a spectral line normally found in the visible part of the spectrum is shifted toward the infrared. what do you conclude?

How does a mirror effect the path of light?

What are examples of scalar and vector quantity?

Which instrument is not used to measure air pressure a. aneroid barometer b. anemometer c. mercury barometer

1. In which situation does the motion of an animal show that net force is acting on that animal? A) An eagle remains flying at a constant velocity B) A running tiger increases its speed from 4 m/s to 6 m/s C) A sparrow remains stationary perched on

Jarin drank a lot of water before going to the doctor. What best describes what would happen to his blood pressure?

The path of a beam of light from the sun to your eye when you are wearing sunglasses

The element that is most abundant in earth is

What is true about coal as an energy source

A car is moving with a speed of 22 m/s. The driver then brakes, and the car comes to a halt after 6.5 s. What is the distance covered by the car after the driver brakes, until it comes to a stop? A) 36 m B) 72 m C) 140 m D) 210 m

Which of the following best explains why an explosive charge in a cannon can cause a cannonball to fly out of the cannon with a high velocity? A. because chemical potential energy can convert to gravitational potential energy B.