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An elevator has mass 670 kg, not including passengers. The elevator is designed to ascend, at constant speed, a vertical distance of 20.0 m (five floors) in 17.0 s and it is driven by a motor that can provide up to 37 hp to the elevator. What is the maximum number of passengers that can ride in the elevator? Assume that an average passenger has a mass of 68.0 kg.
A body of mass 200 g is acted upon by a force of 20 n. Find the acceleration of the body. If the body above is having a volume of 1000 cm3 estimate its density in kg/m2.
A transformer consisting of two coils wrapped around an iron core is connected to a generator and a resistor, What is the peak emf of the generator?
What is an initial velocity of the boulders
What minimum force requires for door to hold it open
Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.25 km long. What is the resistance of such a wire at 20°C
If a certain mass of water falls a distance of 854 m and all the energy is effective in heating the water, what will be the temperature rise of the water
The flywheel of an engine has a moment of inertia 3.00 {rm kg} cdot {rm m} ^ {2} about its rotation axis. What is its final kinetic energy.
The nucleus 124 55 Cs has a half-life of 30.8 s and a molar mass of 124 g. What is the initial activity (decay rate) of the sample
A 100 kg crate is being pushed across the horizontal floor by a force that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.230. What must be the magnitude of, so that the net work completed by it and the kinetic..
you take a 100 g uniform meter stick and hang 200 g on the 10 cm mark, where should you clamp the meter stick so that it is in balanace
Can anyone please help me figure out this question, thanks in advance. What is the magnetic force exerted on a 2.85 m length of wire carrying a current of 0.595 A
Nitrogen and oxygen in their liquid states have densities only 0.80 and 0.90 that of water. Atmospheric pressure is due primarily to weight of nitrogen and oxygen gas in the air. If atmosphere liquefied would its depth be greater or less than 10.30 m..
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