Assume the earth is a ball of perimeter 40, 000 kilometers. there is a building 20 meters tall at point a. a robot with a camera placed at 1.75 m. above the surface of the earth starts walking away from the building. at what distance from a, computed on the surface, does the robot cease to see the (top of the) building?
Answers: 2
Physics, 22.06.2019 15:20
Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.
Answers: 3
Physics, 22.06.2019 18:40
Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory
Answers: 2
Physics, 23.06.2019 00:00
Examine the drawing of a molecule. each ring represents an atom of nitrogen (n). whatโs the chemical formula of this substance?
Answers: 2
Physics, 23.06.2019 00:20
An object with a mass of 1.5 kg changes its velocity from + 15 m/s to +22 m/s during a time interval of 3.5 seconds. what impulse was delivered to the objects?
Answers: 2
Assume the earth is a ball of perimeter 40, 000 kilometers. there is a building 20 meters tall at po...
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