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A person eats a container of yogurt. The Nutritional Facts labelstates that it contains 240 Calories (1 Calorie = 4186 J). What mass of perspiration would one have to lose to get rid of this energy? At body temperature, the latent heat of vaporization ofwater is 2.42 x 10^6 J/kg.a. 0.15 kgb. 0.21 kgc. 0.42 kgd. 0.18 kge. 0.37 kg
Two identical conducting spheres, fixed in place, attract each other with a force of 0.083 N when their center to center separation is 45.00 cm. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres have a..
A 60.0kg skier traveling at 20.0m/s reaches the foot of a steady upward 20.0 degree incline and glides 35.0m along this slope before coming to rest. Calculate the fan's average angular acceleration
A 101 g ball is tied to a string. It is pulled to an angle of 5.20 degrees and released to swing as a pendulum. How long is the string
An ac generator has a circular coil of 338 turns and diameter 0.200 m which rotates about an axis in the plane of the coil, What is the peak emf (in V) generated across the generator coil
A bug of mass 1.0 grams is caught up in the center of an oscillating spider web. show that this motion is generated by hooke's law force, f=-kx
Three equal point charges, each with charge 1.50 mu C, are placed at the vertices of an equilateral triangle whose sides are of length 0.6m. What is the electric potential energy U of the system.
In a "Rotor-ride" at a carnival, people pay money to be rotated in a vertical cylindrically walled "room." what is the minimum coefficient of static friction so that the people will not slip down
The angular velocity of a disc is given by: ? = 24t - 6t^2. At what time is the torque acting on the disc zero
A 55 kg person is riding in a hot air balloon and scale shows this person's weight too be 549N. the acceleration of gravity at the location of the balloon is known to be 9.79 m/s/s.
What's the magnitude of the electric field at an on-axis point a distance of .7m from a ring of charge with a total charge of .8microC
A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.40 s. What is the velocity of the boat at t = 21.8 s
the most common use for the nand latch is as a switch debouncer. what is switch bounce and why do we need to eliminate
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