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Question: Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 22 rubs, at a distance of 7.00 cm per rub, and with an average frictional force of 48.0 N,
Part A: What is the temperature increase?
I need help to solve the above question and the mass of tissues warmed is only 0.110 kg, mostly in the palms and fingers.
question during the spin cycle of your clothes washer the tub rotates at a steady angular velocity of 34.7 rads. find
A rocket with mass 1000kg accelerates upwards at a rate of 20m/s2. What is the net force acting on the rocket as it is rising
A 54.0 kg ice skater is moving at 3.96 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. She then moves in a circle of radius 0.803 m around the pole. Decide the force exerted with the horizontal rope on her arm..
perform the following experiment the purpose of this experiment is to use a compass to detect the weak magnetic field
an alien pilot of an intergalactic spaceship on a mission to measure the sizes of galaxies is traveling at 0.86c
a 10kg block is pushd against a vertical wall by a horizontal forceof 100N, what are the forces on the block
A 130kg mail bag hangs by a vertical rope 3.6mlong. A postal worker then displaces the bag to a position 2.2m sideways from its original position, What horizontal force is necessary to hold the bag in the new position
7.125 Steam enters an adiabatic turbine at 7 MPa, 600 degrees C, and 80 m/s and leaves at 50 kPa, 150 degrees C and 140 m/s. If the power output of the turbine is 6 MW, determine (a) the mass flow rate of the steam flowing through the turbine and (b)..
A superhero flies 287 meters from the top of a tall building at an angle of 17 degrees below the horizontal. What is the vertical component of the superhero's displacement? Answer in units of meters. The horizontal is 274.459 meters and the vertical ..
a 1200 kg automobile moving at 25 ms has it brakes applied with a deceleration of 8.0 ms2. how far does the car travel
A spherical particle is released 15 ft below water level. The specific gravity of the particle is 0.95 and its diameter is 0.1 in. Assuming steady state: Calculate the terminal velocity of the particle
a. calculate the launch speed of a projectile that rises vertically above the earth to an altitude equal to one earth
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