Choose if the quantity indicated is a vector or a scalar. Quantity: the duration of a train ride Type of quantity:

You and your classmates are asked to consider what would happen to you if earth's gravity was suddenly turned off. one of your classmates says that you would be pushed off earth into space by the centrifugal force exerted on you by earth's rotation.

An underground layer of rock that contains fresh water that can be extracted is a (n)

Which option accurately describes an unbalanced force? Each cement block supports a 2-N force, but when the foundation is built in a staggered pattern, it can support 2,000 N.

Explain why atomic radius decreases as you move to the right across a period for main-group elements but not for transition elements. Match the words in the left column to the appropriate blanks in the sentences on the right.

Why do the asbestos roof of house get lifted in hurricane?

How does the brightness of a bulb tell you about the energy of electrons passing through it?

Why do you think sound travels faster in steel than it does in wood? (Hint: Think about the densities of the two materials, and how the particles might be arranged.)

On which body would a 100kg man have the least gravitational potential energy when lifted to a height of 3 meters

Which of the following factors can negatively affect development? a. Political corruption and instability b. Lack of resources c. Lack of education d. All of the above

A golf ball is hit with an initial velocity of 155 ft/s at an angle of 23 degrees with the horizontal. After 1.4 seconds, how far has the golf ball traveled horizontally and vertically?. a. 199.7 feet horizontally and 75.2 feet vertically. b. 60.