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A skier of mass 70.0 kg is pulled up a slope by a motor-driven cable.
(a) How much work is required to pull the skier a distance of 60.0 m along a 30.0degree slope (assuming friction and air resistance are negligible) at a constant speed of 2.00 m/s?
(b) A motor of what power is required to perform this task? can you please show me the steps please!
pipe open at one end only has a fundamental frequency of 237 Hz. A second pipe, initially identical to the first pipe, is shortened by cutting off a portion of the open end. Currently, when both pipes vibrate at their fundamental frequencies, a beat ..
A particle of mass 4.41x10-13 kg carries a charge of 3.97x10-11C. what is its speed in meters per second
You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 1.8 x 10^(7) m and its rotation period to be 22.3hours. What is the mass of the planet and star
A sport utility vehicle (SUV) and a sports car travel around the same horizontal curve. The SUV has a static stability factor of 0.74, At what maximum speed can the sports car negotiate the curve without rolling over
A laser emits a cylindrical beam of light 2.8mm in diameter.If the average power of the laser is 2.6mW , what is the rms value of the electric field in the laser beam?
A series RLC circuit contains an AC generator (120 volts rms, frequency = 60 Hz), a 35.0 ohm resistor, a 1.49×10^?5 F capacitor, Determine the inductive reactance
A thin metal film of length 2.80 cm, width of 0.700 cm, and thickness of 30.0 micrometers is used to measure the Hall effect. Calculate the drift velocity of the charge carriers
you are bowling and have one pin left standing. you roll the 10kg bowling ball at a velocity of 1 m s into the 1kg pin
Two 6.0 uC charges are placed on the x-axis at, one at x=0.0 and the other at x=1.0m. Another charge, -3.0uC is also on the x axis, what is the total electric field at position x=0.25m
find the center of mass of a uniform density cone. give your answer as a distance from the cone point, and as a fraction of the total cone height
A 300 turn solenoid has a radius of 3.00 cm and a length of 18.0 cm. Find the inductance of the solenoid
Air is flowing steadily through a cooling section where it is cooled from 30 °C to 15 °C at a rate of 0.25 kg/s. If the average COP of the air-conditioner is 2.8 and the unit cost of electricity is 7 cents per kWh. Determine the cost of electricity c..
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