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Problem: An athlete performing a long jump leaves the ground at a 28.2 degree angle and lands 7.67 m away.
A) What was the takeoff speed?
B) If this speed were increased by just 5.0%, how much longer would the jump be?
A new material is found to be superconducting below 94 K. How much resistance will a 93 mm long sample of this material have if it is at a temperature of 84.6 K while linked to a4.5 V DC-power supply?
An amusement park ride consists of a car moving in a vertical circle on the end of a rigid boom. The radius of the circle is 32m. What is the force of the boom on the car
a cue ball mass 0.160 kg is at rest on a frictionless pool table. the ball is hit dead center by a pool stick which
What is the minimal mass of helium (density 0.18) needed to lift a balloon carrying two people in a basket, if the total mass of people, basket, and balloon (but not gas) is 320.
A white billiard ball with mass mw = 1.52 kg is moving directly to the right with a speed of v = 3.22 m/s and collides elastically with a black billiard ball with the same mass mb = 1.52 kg that is initially at rest. What is the final speed of the..
The space shuttle, in a 300km high orbit needs to perform anexperiment that has to take place well away from the spacecraft. what is the angle of the rope as measured from a line drawn fromthe center of the earth though the payload
Two objects moving with a speed vtravel in opposite directions in a straight line. The objects stick together when they collide, and move with a speed of v/5 after the collision.
Lightning occurs when there is a flow of electric charge (mainly electrons) between the ground and the thundering cloud. How much charge flows between the ground and the cloud
How many liters of gasoline would give the same mechanical energy given that each liter provides 8.50x10^6 J of mechanical energy.
Light from the sun arrives at the earth, an average of 1.50×1011 m away, at the rate of 1.40×103 W/m2, How many photons per second does it emit
What is the difference between series and parallel connections. Find how are the voltage drops across the individual resistors related to the voltage supplied by the battery
At T = 0ºC and p = 1000mb, 1g of dry air receives during an isochoric process anamount of heat, what is the amount of heat absorbed
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