If a rock weighing 2,200 N is dropped from a height of 15 m, what is its KE just before it hits the ground? Remember, weight is measured in newtons (N), and is equal to mass times gravity.

A. 0 J

B. 2,224 J

C. 147 J

D. 33,000 J

The force of friction on an object is dependent on two things. what are they?

An apple weighs about 1N on earth what is the mass in kilograms

Which of the following is an example of genetic engineering? Editing the DNA of bacteria so that they produce insulin Tracking the relationship of whales and dolphins using DNA samples Writing computer code that shows artificial intelligence

An object with a density of 0.85 g/cc is dropped into each of the two beakers shown below. Beaker 1 has a density of 0.5 g/cc. Beaker 2 has a density of 1 g/cc. What will happen to the object in each case?

In order to lift the crate, the forklift had to apply force that was greater than force of gravity affecting the crate.

The theory describing the movement of the plates is called plate motion theory. True or false?

Would electromagnetic waves exist if changing magnetic fields could produce electric fields but changing electric fields could not, in turn, produce magnetic fields? Explain.

A person walks 4.0 kilometers north, then 4.0 kilometers west. His displacement is closest to

A radar station detects an airplane approaching directly from the east. at first observation, the range to the plane is d1 = 354 m at 40° above the horizon.

A bookshelf is 2m long, with supports at its end (p and q). A book weighing 10N is placed in the middle of the shelf. what are the upward forces?