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A cylindrical 87.50ohm resistor is made from a coil of copper wire whose total mass is 18.0 g. The resistivity of Cu is 1.68×10-8 ohm x m and its mass density is 8.90×10^3 kg/m^3
a) What is the diameter of the wire?
b) What is the length of the wire?
A 1 Kg mass on a 37 degree incline is connected to a 3 kg mass on a horizontal surface. The coefficient of kinetic friction between all surfaces is 0.10 and the pulley is frictionless and applied force is F=12N.
What is the gas pressure? Give your answer in atm. The gas then undergoes an isothermal compression until the pressure is 3.1atm, What is the final temperature of the gas
Can you please help me set this problem up? Suppose that now you want to make a scale model of the solar system using the ball bearing .0014 m to represent the sun. (a) How far from it would you place a sphere representing the earth?
The atmospheric pressure at sea level is about 1.0 multiplied by 105 Pa. What is the force at sea level that air exerts on the top of the typical office desk, 159cm long and 86 cm wide?
How much time does it take to lift container with the motor.
What is an acceleration of the car
A cardinal (Richmondena cardinalis) of mass 4.30×10-2 and a baseball of mass 0.14 have the equal kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of baseball's momentum.
A wheel with radius 43.9 cm rotates 4.27 times every second. Find the period of this motion.
On a certain amusement park ride, passengers are seated in a horizontal circle of radius 7.5m. the seats begin to rotate from rest and are uniformly accelerated for 21 seconds to a most rotational speeds of 1.4 rad/s.
A ramp is 25 meters long and is inclined at 30 degrees with the horizontal. A block of mass 25 is pulled up at a constant acceleration of 1 m/s2. The coefficient of kinetic friction is 0.15. If the box starts at rest from the bottom, what would be..
The coefficient of kinetic friction for wood sliding on wood is 0.20. What is the final speed of the bullet
A 9 m, 260-N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.5, and the ladder makes a 50° angle with the ground. How far up the ladder can an 800-N person climb before the ladd..
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