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The Calorie (or kcal) is another energy unit and is commonly used to measure food energy (as well as heat). James Joule discovered that 1 Calorie = 4186 Joules. How many Calories would you burn walking up a flight of stairs for an hour?
The excess internal energy of metabolism is exhausted through a variety of channels, such as through radiation and evaporation of perspiration. find the rate at which you lose energy by exhaling humid air
What is the minimum coefficient of friction that will prevent sliding. What should be the highest speed of the car so it can round the curve safely.
q1. suppose that in franck-hertz experiment electron of energy 12.5 ev is used to excite hydrogen atoms. what is the
A circuit has three resistors in series with a 36 volt source, The voltage across the third resistor is 20 V, Determine the three resistor values
question1a 68.0-kg person throws a 0.0490-kg snowball forward with a ground speed of 32.0 ms. a second person with a
Two children ride on a merry-go-round. One is 2 m from the axis of rotation and the other is 4 m from it. Which child has the larger linear speed and acceleration
Two people, A and B, with masses of 50-kg and 60-kg, correspondingly, stand on a frictionless surface 10m apart. B pulls on a connecting rope, giving A an acceleration of 0.92m/s2 towards B. a) what is B's acceleration toward A.
A crate of mass 12.5 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The pulling force is 100 N parallel to the incline, What is the change in kinetic energy of the crate
q1. assuming she was dropped from a height of 290 and that superman can accelerate straight upward at 18.0 determine
Suppose a cylindrical habitat in space 5.90 km in diameter and 37.0 km long has been proposed. How fast would the cylinder have to rotate to imitate the Earth's gravitational field at the walls of the cylinder
What is the final angular velocity
A 40 kg child sits in a swing suspended with 2.5 m long rope. Use energy conservation to determine the speed the child will have at the bottom of the arc when she is let go
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