What is one way to describe elements

A. They are the building blocks of matter

B. They are the smallest pancies of any matere

C. They break down easile

D. They are the mostepensive materas on sen

Which best compares freezing and condensation?

A hot-air balloon is descending at a rate of 1.9 m/s when a passenger drops a camera. If the camera is 49 m above the ground when it is dropped, how much time does it take for the camera to reach the ground?

Resultant velocity of an airplane the flies 200 km/h if it encounters a 50 km/h tailwinds

What is the primary reason fusion is not used in power plants? A. Fussion causes too much air pollution 2. Fission creates more energy than fussion C. The cost of using fussion in a practical way is too expensive D.

How do you solve for net force

Atoms in a molecule are held together through shared

Why is it not a good idea to stick a metal fork in a plugged in toaster to remove a stuck piece of toast? In your explanation be sure to use the concepts of electrical conduction and voltage.

Two identical rocks are dropped from different heights. The higher one starts out four times as high as the lower one. How much faster is the higher one going just before they hit?

A kid on a playground swing makes 6 complete to-and-from swings each 30 seconds (a) the frequency of the swinging is? (b) the period of the swinging is?

Read through the scenarios below and calculate the predicted change in kinetic energy of the object compared to a 100 kg ball traveling at 5 m/s. A 1,000 kg ball traveling at 5 m/s would have kinetic energy.