From which of these following we can hear the sounds

1) solid

2) liquid

3) gases

4) all of these

Which best describes Einstein's new explanation of light and gravity? Einstein created a new law, because his explanation of the interaction between light and gravity provided unity amongst many facts.

The angle between a flashlight beam that strikes a mirror and the reflected beam is 80 degrees. What is the angle of incidence?

What is it called when light passes through an object

When buying a car, you tell the salesman that you want to make sure the car can go from 0 miles per hour to 60 miles per hour in 5 seconds. You are describing the car's

If you are looking straight ahead an object that is behind you is in your cone of vision. a. True b. False

Fourteen billion years represents the approximate age of?

An engineer uses aluminum to build an airplane rather than composite materials that are lighter and stronger. He does this because he is concerned about the composite materials and how suddenly they can fail. This is an example of:

Teresa wanted to test the effects of liquid density on the speed of sound waves. what is the dependent variable in her experiment?

A proton (mass = 1.67*10-27 kg, charge = 1.6*10-19 C) travelling with speed 1*106 m/s enters a region of space containing a uniform magnetic field of 1.2 T. What is the time t required for the proton to re-emerge into the field-free region? t =

A scientific_ is a rule used to discribe a pattern seen in nature not an examplanation of why that patten might occur