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Delivery trucks that operate by making use of energy stored in a rotating flywheel have been used in Europe. The trucks are charged by using an electric motor to get the flywheel up to its top speed of 202-? rad/s. One such flywheel is a solid, homogeneous cylinder with a mass of 550 kg and a radius of 1.0 m. What is the kinetic energy of the flywheel after charging? If the truck operates with an average power requirement of 7.0kW, for how many minutes can it operate between chargings?
A 995 kg HOLLOW SPHERE has a radius of 4.4 m and is in equilibrium. Determine the net force & net torque acting on the HOLLOW SPHERE
Conclude the electric field at the origin
Calculate the speed of a proton after it accelerates from rest through a potential difference of 170V, Calculate the speed of an electron
A solid sphere is released from rest on an incline. When it reaches the bottom, what fraction of its total kinetic energy is rotational
An airplane can be made invisible to radar by coating the plane with a thin layer of an antireflective material. How many dark fringes are observed when 600 nm light illuminates the slides from directly above
what is the frequency of vibration of the string. If the shot was launched from 6.00 f above the ground at an initial angle of 42.0 degrees , what was its initial speed.
The two hot-air balloons in the drawing are 48.2 m and 61.0 m above the ground. A person in the left balloon observes that the right balloon is 13.3° above the horizontal.
A sphere with radius 0.190 has density that decreases with distance from the center of the sphere according to p = 35,000 kg/m^3 - (9,250 kg/m^4)r
A standing wave is set up in a 200-cm string fixed at both ends. The string vibrates in 5 distinct segments when driven by a 120-Hz source. What is the fundamental frequency for the string
q1. if the distance between two slits is 0.031 mm and the distance to a screen is 2.50 m find the spacing between the
A sump pump is draining a flooded basement at the rate of 0.600 L/s, The water enters a hose with a 3.00 cm inside diameter and rises 2.50 m above the pump. What is its pressure at this point
Three infinite nonconducting sheets, with uniform positive surface charge densities, sigma, 2sigma, and 3sigma, are arranged to be parallel. What is their order, from left to right
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