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A small object is released from rest and falls 1.00 × 102 feet near the surface of the earth. Neglect air resistance. Approximately how fast will the object be moving after falling through the 1.00 × 102 feet mentioned?
1. 40 ft/s2. 160 ft/s3. 9.8 ft/s4. 320 ft/s5. 80 ft/s
Suppose you take and hold a deep breath on a chilly day, inhaling 3.0 L of air at 0 degrees C . Assume that air pressure is 1.0atm . How much heat must your body supply to warm the air to your internal body temperature of 37degrees celcius ? How much..
Geostationary satellites used for television, weather tracking, or defense purposes are satellites that remain stationary over one point on the equator, What must be the period of the satellite's orbit
Two police cars have identical sirens that produce a frequency of 560 Hz. Find the speed of the approaching police car
A bird feeder in the shape of a 50-cm-diameter disk of mass 340 g, suspended by a wire with torsional constant 5.00N?m/rad, What is the mass of the birds, assuming they have the same mass
A nuclear power plant generates 2000 MW of heat energy from nuclear reactions in the reactor's core. What is the plant's actual efficiency
in a contest of national football league behemoths teams from the rams and the 49ers engage in a tug of war pulling in
A series of RLC circuit has R=200 ohms, L=40.0mH and C=120pF. What is the impedance of this circuit at resonance
7 an x-ray tube is operating with energy of 16 keV the produced x-rays photon strike a target and are compton-scattered at an angle of 45 degrees, what is the energy of the scattered x-ray photon in ev
A fire hose must be able to shoot a stream of water a specified height, straight up. Calculate the gauge pressure (difference between actual pressure
a large box containing your new computer sits on the bed of your pickup truck. you are stopped at a red light. the
A 100 kg shot-putter pushes a forward and upward force on a 4 kg shot with a force of 1000N, Calculate the vertical and horizontal components of this resultant force
A person's body is covered with 1.69 m2 of wool clothing. The thickness of the wool is 2.12 × 10-3 m. How much heat per second does the person lose due to conduction
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