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a wheel of diameter 144 cm has an axle of diamter 15 cm. a force of 150N is exerted along the rim of the wheel. What force should be applied to the outside of the axle in order to prevent the whell from rotating? Asuume the direction of the force to be tangentail to the axle.
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.60 104 m/s, What is the orbital speed of the second satellite?
The light ray makes an angle of α = 32.1° with the normal line at the boundary of linseed oil and water. find the angles θ1 and θ2. Note that n = 1.48 for linseed oil.
A 40-kg firl and an 8.4-kg sled are on the surface of a frozen lake, 15 m apart. By means of a rope the girl exerts a 5.2-N force on the sled, How far from the girl's intial position do they meet
makes an angle of 35.2o with the horizontal. In part b the person is looking at the top of the antenna, determine How tall is the antenna
The specific heat capacity of the material use to make the block is C resolve the temperature rise that results from the collision in terms of C and the other given quantities.( suppose that no energy is transferred to the track or the surrounding..
A flat sheet of ice (n = 1.309) has a thickness of 1.6cm. It is on top of a flat sheet of crystalline quartz (n = 1.544) that has a thickness of 0.86cm. Light strikes the ice perpendicularly and travels through it and then through the quartz. In t..
The work function for aluminum is 4.08 eV. Find the cutoff wavelength for aluminum
How many energy is consumed by a 1.10kW hair dryer used for 11.0min and a 10.0W night light left on for 11.0hr
An ideal gas consists of n moles of diatomic molecules that rotate but do not oscillate. What is the change in the mean free path of the molecules
A 1000 kg experimental rocket sled on a level frictionless rail is loaded wiht 50kg of propellant. It exhausts the propellant in a 20-s "burn". If rocket, initially at rest, moves at 150m/s after the burn, what impulse is experienced by the rocket..
The entrepreneur who founded the company is convinced that sales will increase next year by 150% and that net operating income will increase by 400%, with no increase in average operating assets. Illustrate what would be the company's ROI?
In a circut all six resistors share the same value R. Calculate the equivalent resistance between points A & B
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