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To decrease the body temperature of a 66-kg person by 1.0 C , what mass of alcohol must be evaporated from the person's skin? Ignore the heat involved in raising the temperature of alcohol to its boiling point (why?) and approximate the human body as water. Express your answer using two significant figures.
At a certain instant a particle (mass=0.5 kg) is moving in the +x direction with velocity 14 m/s. What is the magnitude of the momentum of the particle (in kg*m/s) at the end of this 0.15 second interval
A soccer player runs up behind a 0.450-kg soccer ball traveling at 3.20 m/s, What magnitude impulse did the soccer player deliver to the ball
An object is projected horizontally with a speed of 12 m/s and lands 120m from the launch site. What vertical height was it launched from
A small immersion heater is rated at 352 W. Estimate how long it will take to heat a cup of soup (suppose this is 250 mL of water) from 20°C to 50°C.
A sonar echo returns to a submarine 1.40 s after being emitted. What is the distance to the object creating the echo
A 1.7-m length of horizontal pipe has a radius of 6.50 10-3 m. What is the pressure in the flowing water at the left end of the pipe
A 20 kg satellite has a circular orbit with a period of 2.8 h and a radius of 7.9 106 m around a planet of unknown mass. what is the radius of the planet
Assuming that the ram spring is oriented vertically and is still compressed by 1.17 10-2 m when the downward-moving ram hits the staple, find the speed of the ram at the instant of contact
An insect 5.50mm tall is placed 25.0cm to the left of a thin planoconvex lens. The left surface of this lens is flat, Calculate the size of the image
an inductor carries a current of 2.5 A, and the magnetic energy stored in the inductor is .0035 J. What is the inductance
A long thin rod lies along the x-axis. One end is at x=2.00 m and the other at x=4.00 m. Calculate mass of the rod
A particle with a mass of 3.00 10-20 kg is oscillating with simple harmonic motion with a period of 3.50 10-5 s and a maximum speed of 8.00 103 m/s. Calculate the angular frequency of the particle
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