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A large solar panel on a spacecraft in Earth orbit produce 1.0kW of power when the panel is turned toward the sun. What power would the solar cell produce if the spacecraft were in orbit around Saturn, 9.5 times as far from the sun?
Starting from rest, you pull the string with a constant force F = 8 N along a nearly frictionless surface. At the instant while the center of the disk has moved a distance x = 0.12 m, a length d = 0.27 m of string has unwound off the disk.
Suppose a car is traveling at 13.0 m/s, and the driver sees a traffic light turn red. What is the stopping distance of the car
A motorcyclist is able to ride on the vertical wall of a bowl- shaped track . his weight is counteracted by the friction of the wall on the tires. what force increase or decrease if he rides faster.
Gas is confined in a tank at a pressure of 11.9 atm and a temperature of 23.0°C. If two-thirds of the gas is withdrawn and the temperature is raised to 76.0°C
A pilot flies horizontally at 630 km/h, at height h = 48 m above initially level ground. However, at time t = 0, at what time t does the plane strike the ground
calculate and compare the electron densities of a piece of aluminum 1 cm thick and a piece of iron of the same density
A swimmer runs horizontally off a diving board with a speed of 3.44m/s and hits the water a horizontal distance of 1.74m from the end of the board. How high above the water was the diving board
a thin 20-kg, 5.0 m long rod is bent into a semi circle. A 0.10 kg object is placed at the center of the curvature of the semi circle. WHat is the gravitational force of the rod on the object
which of the following are true about vector components for vectors in two dimensions. choose all that apply they are
a man exerts a force of 60n straight up to lift a watermelon that weighs 2.5 kg. what is the acceleration of the
A textbook of mass 2.08kg rests on a frictionless, horizontal surface. What is the tension in the part of the cord attached to the textbook
An elevator is able to raise 9,800 N to a height of 27 m in 20 s. What is the elevator's power output
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