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A person on a trampoline bounces straight upward with aninitial speed of 4.5 m/s. What is the persons speed when she returnsto her initial height?
a 55 kg person is at rest at the left end of a floating 180kg log. It starts to run toward the other end with a velocity 2.2m/s relative to the still water. what is the velocity of the log
What is the rms current in a series RC circuit if R = 7.0 k, C = 0.80 µF, and the rms applied voltage is 100 V at 60 Hz and What is the phase angle between voltage and current
Determine the capacitance of a Teflon-filled parallel-platecapacitor having a plate area of 1.90cm2 and insulation thickness of 0.0100 mm. What is the maximum voltage that can be applied to the capacitor?
A physics professor demonstrates the Doppler effect by tying a 610 Hz sound generator to a 0.9 m long rope, What are the highest and lowest frequencies heard by a student
A ring 1.90m in diameter is pivoted at one point on its circumference so that it is free to rotate about a horizontal axis. what is its maximum angular velocity
Neon is a monatomic gas with a molar heat capacity at constant volume of 12.66 J/(mol · K). what is the final temperature of the neon
A person who weighs 645 N is riding a 94.9 N mountain bike. what is the area of contact between each tire and the ground
A car starts from rest and then accelerates uniformly to a linear speed of 16 m/s in 42 s. If the tires have a radius of 27 cm, what are the following.
A 6.00 kg mass is located at (2.00m, 2.00m, 2.00m) and a 5.00 kg mass is located at (-1.00m, 3.00m, -2.00 m). find the moment of inertia of this system
Two identical light bulbs are connected in parallel to a different source, one with E=9.0V and internal resistance 0.9 ohms. Find potential difference across each bulb
A young male adult takes in about 4.46 x 10-4 m3 of fresh air during a normal breath. Fresh air contains approximately 21% oxygen. find the number of oxygen molecules in a normal breath
A Carnot engine performs work at the rate of 480 kW while using 760 kcal of heat per second. If the temperature of the heat source is 571°C, at what temperature (in Celsius) is the waste heat exhausted
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