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A steam pipe is covered with 1.50 cm thick insulating material with a thermal conductivity of 0.200 cal/cm·°C·s. How much energy is lost every second when the steam is at 180°C and the surrounding air is at 20.0°C? The pipe has a circumference of 800 cm and a length of 50.0 m. Neglect losses through the ends of the pipe.
a 1490 kg car has just passed a diner. the closest the car came to the diner was r=40.5, what is the current magnitude of the angular momentum of the car about the diner
A hydrogen atom makes a transition from the n = 2 level to the ground state (corresponding to n = 1). Find the wavelength and the frequency of the emitted radiation
A bicyclist climbs a hill 17 m tall and then coasts down the other side without pedaling. If the cyclist's speed was 2.5 m/s at the top, what is it at the bottom (ignoring friction)?
Please show steps: Hydraulic engineers in the United States often use, as a units of volume of water, What volume of water, in acre-feet, fell on the town
A player bounces a 0.45 kg soccer ball off her head, changing the velocity of the ball from vector v i = (8.6 m/s)x + (-2.1 m/s)y to vector v f =(5.8 m/s)x + (3.4 m/s)y hat. What is the magnitude of the impulse delivered to the ball
Find the pressure increase in the fliuid in a syringe when anurse applies a force of 42N to the syringe's circular piston,which has a radius of 1.1cm
In downhill speed skiing a skier is retarded by both the air drag force on the body and the kinetic frictional force on the skis. Suppose the slope angle is ? = 32.5°, What is the terminal speed
On her way to school, a child discovered that her coin is missing and there is a hole in her pocket. She turned back and walked 24m east along the sidewalk. find her average velocity while searching for the coin
In an effort to pump up you decide to hit the gym and lift weights everyday of the week. Your favorite lift, which you per- form every trip to the gym, is the bench press. This lift involves lifting a 125 lb.
Astronomers discover an exoplanet (a planet of a star other than the Sun) that has an orbital period of 3.35 Earth years in its circular orbit around its sun, Find the radius of the exoplanet\'s orbit
Calculate the magnitude of the electric field at one corner of a square 0.820m on a side if the other three corners are occupied by 6.03×10?6C charges
A boat has a mass of 4790 kg. Its engines generate a drive force of 4350 N due west, while the wind exerts a force of 940 N due east, What is the boat's acceleration, with correct sign
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