- concert the correctly defines mechanical energy? A) The energy possessed by an object due to its motion or position in The enerity stored in an object due to its height above the ground Or The enerity associated with the vibration of particles in matter. (D) The energy used by machines to perform work.
- A thermometer is a tool that measures heat or temperature The root meter means measure. What does the root therm mean? heat light 60
- An object is launched vertically in the air at 49 meters per second from a 5-meter tall platform. Using the projectile motion model h(t)=-4.9t^2+v_(0)t+h_(0) where h(t) is the height of the projectile t sec after its departure, v_(0) is the initial velocity in meters per second, and h_(0) is the initial height in meters, determine how long it will take for the object to reach its maximum height What is the maximum height? The object will reach its maomum height in square seconds
- would force of gravity on an object on the surface of the Earth is 100 N, what one force be on the same object which at an altitude equal to __ a) one Earth radius? b) two earth radii? c) three Earth radii?
- 1. A calculator draws 15 mA of current from a solar cell for 25 s. Calculate the total charge. 2. How many electrons are passing through the calculator in #1 each second? 3. A light bulb draws a current of 0.6 A. If the bulb is left on for 8.0 min.how many electrons pass through the bulb?
