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A person is exercising on an elliptical trainer at a steady VO2 of 3.92 l/min. Suppose that this person has a metabolic efficiency of 0.227 and that each liter of oxygen consumed liberates 5.05 kcal of energy. Find what is this person mechanical power output?
A 10 kg block sits motionless on a table in spite of an applied horizontal force of 2 N. What are the magnitudes of the reaction force
A capacitor is charged to a potential of 12.0 V and is then connected to a voltmeter having an internal resistance of 3.50M%u03A9. What is the time constant of the circuit
Assuming no heat loss to the surrounding environment, determine the minimum duration of time necessary for a 100 W aquarium tank heater to raise the temperature of 20.0 gallons of water by a difference of 10.0°C.
How much work was done by the lift on the automobile.
Without slowing down, she skis off the cliff and lands downhill at a point whose vertical distance is 3.50 m below the edge. Explain how fast is she going just before she lands?
A motorcycle, which has an initial linear speed of 8.1 m/s, decelerates to a speed of 1.9 m/s in 6.7 s. find the angular displacement (in rad) of each wheel
When a rock thrown straight upwards gets to the exact top of its path, its. While a car travels around a circular track at a constant speed its
A rocket is launched at an angle of 57.0° above the horizontal with an initial speed of 99 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 30.0 m/s2. At this time, its engines fail and the rocket proceeds ..
What is the average velocity (Vrms) of 0.75kg of air at room temperature (20°C), What is the average kinetic energy of air at 20°C, using the velocity you just calculated
In a hydraulic lift, the maximum gauge pressure is 18.7 atm. what is the heaviest vehicle that can be lifted
A uniform electric field exists in the region between two oppositely charged plane parallel plates. Find the speed of the electron when it strikes the second plate
Light behaves primarily as a wave when it...
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