Radioactive isotopes of an atom are:

a. more scarce

b. more stable

c. less stable

d. more abundant

Which example possesses mechanical potential energy?. A. a taut guitar string. B. an oscillating pendulum. C. a roller coaster ride. D. a child on a swing. E. a speeding car

16 N is directed 30 degrees above the x axis. The y component of the force is?

A skydiver jumps from a helicopter hovering at high altitude. if there were no air resistance, how fast would she be falling 12s after jumping?

A farmer decides to build a fence to enclose a rectangular field in which he will plant a crop. He has 1300 1300 feet of fence to use and his goal is to maximize the area of his field.

Places with a constant temperature are most likely to be located next to the mountains next to the ocean next to the desert next to a lake

Acceleration is a scalar quantity true or false

Find a numerical value for rhoearth, the average density of the earth in kilograms per cubic meter. Use 6378km for the radius of the earth, G=6.67*10-11m3 / (kg⋅s2), and a value of g at the surface of 9.80m/s2.

The driver of a car traveling at 32 m/s applies the brakes and undergoes a constant deceleration of 2.25 m/s^2.

The ability of an object to vibrate by absorbing energy at its natural frequency is called?

A hurricane in the Gulf of Mexico to 15 hours to travel 360 kilometers. What is the average speed of this hurricane in kilometers per hour?