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Tarzan is in the path of a pack of stampeding elephants when Jane swings in to the rescue on a rope vine, hauling him off to safety. The length of the vine 25 m, and Jane starts her swing by the rope horizontal. If Jane's mass is 54kg, and Tarzan's mass is 82kg, to what height above the ground will the pair swing after she rescues him? (Suppose the rope is vertical when she grabs him.)
Gold and silver have densities of 19.3 and 10.5 grams per cubic centimeter, respectively. If you have equal volumes of each, which one will have the larger mass? Explain
If the planet has a radius of 6 ×103 km, calculate the weight of an object with m=30.0 kg sitting on the surface of the planet
A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 128-kg laser sensor that measures the thickness of the ice, find the tension in the cable towing the sensor
Gas is contained in a 8.00 L vessel at a temperature of 21.0°C and a pressure of 5.00 atm. Determine the number of moles of gas in the vessel. How many molecules are there in the vessel?
The Electron in the B-field An electron moves in a 0.5nT B-field. If the radius of the circular orbit is 1cm, what is its period. angular velocity, linear velocity, linear momentum, angular momentum, and kinetic energy?
q1. a ball tied to the end of the string is swung in a vertical arc of radius r under the action of gravity. what would
A vertical solid steel post of diameter = 21and length = 2.90 is required to support a load of mass = 8300 . You can ignore the weight of the post. Take free fall acceleration to be . 1) What is the stress in the post? 2) What is the strain in the po..
An object is attached to the lower end of a 100-coil springthat is hanging from the ceiling. By how much does each spring stretch
our little sister builds 2 tree houses and stretches a rope between them for sending messages to other tree house. She hangs a mass of 1.4kg on one end of the rope that passes over the pulley.
There are two identical, positively charged conducting spheres fixed in space. find the initial charge on each sphere
The pumps coefficient of performance is 3.8, and the heat pumpdelivers 7.54 MT of thermal energy to the building each hour. find at what ratemust work be done to run the heat pump
A kicker punts a football from the very center of the field to the sideline 36 yards downfield. What is the direction of the net displacement of the ball
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