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A rescue helicopter drops a package of emergency ration to a stranded party on the ground.
If the helicopter is travelling horizontally at 40m/s at a height of 100m above the ground, what are the horizontal and vertical component of the velocity of the package just before it hits the ground?
A sledge loaded with bricks has a total mass of 17.4 kg and is pulled at constant speed by a rope inclined at 21.0° above the horizontal. What is the tension in the rope
7_feet_Dirk is shooting a basketball with 37angle at a distance X=8.4m from his hands to the rim. The basketball rim is with a height Y=10.0ft, what is his launching speed if his hands have the same position with his height?
question a rope can withstand 1.0 x 103 n of tension. if the rope is being used to pull a 10.0-kg package across a
A 90 uF capacitor and a 15m H inductor are in series with a 185 O resistor, What is the resonant frequency
A steel bicycle wheel (without the rubber tire) is rotating freely with an angular speed of 14.9 rad/s. What is the angular speed of the wheel at the higher temperature
A blue puck with mass 0.0400 kilogram, sliding with a velocity of magnitude 0.200 m/s on a frictionless, horizontal air table makes a perfectly elastic, Determine the mass m of the red puck
A hypothetical positronium atom consists of an electron orbiting a positron, Using the Bohr Theory, calculate the radius (in nm) of the first orbital of this "atom"
On a frozen pond, a 10 kilogram sled is given a kick that imparts to it an initial speed of v= 2.0 m/s. determine the distance the sled moves before coming to rest
Three horizontal forces (the only horizontal ones) act on a box sitting on a floor. One (call it F1) acts due east and has a magnitude of 150lb, Find the magnitude of the third force
The rear end of an air conditioner dumps 1.2 * 10^7 J/hr of waste heat into the air outside a building. A fan assists in the removal of this heat. With what temperature does the air emerge
A person stands in a stationary canoe and throws a 5.20 kg stone with a velocity of 7.85 m/s at an angle of 35.0 degrees above the horizontal. The person and the canoe have a combined mass of 105kg.
Traveling at a speed of 19.5 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.560. What is the speed of the automobile after 1.29 s have e..
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