How many cells are in a grown person body

What does not affect the gravitational potential energy of an object

Which of the following shows kinetic energy being converted into potential energy? A) a boulder rolling across the ground B) a rock being tossed high into the air C) a boulder falling off the edge of a cliff D) a rock sitting in the grass

El Niño is actually good news for some parts of the world that experience a decreased chance of severe weather events. True False

The speed of propagation of the action potential (an electrical signal) in a nerve cell depends (inversely) on the diameter of the axon (nerve fiber). If the nerve cell connecting the spinal cord to your feet is 1.

A batter hits the a baseball so that it leaves the bat with an initial speed 37mps at an angle of 53degree find the position of ball after 2 second

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?