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How much thermal energy is conducted through a thermopane window in 8.00 hr if the window is 80.0 cm wide by 120 cm high, and it consists of two sheets of glass 0.350 cm thick separated by an air gap of 1.50 cm? The temperature of the inside window is 22.0C and the temperature of the outside window is -5.00C.Treat the thermopane window as a compound wall.
An overnight rainstorm has caused a major roadblock. Three massive rocks of mass m1 = 584 kg, m2 = 815 kg and m3 = 355 kg have blocked a busy road.
Determine the thickness of the water layer under the runners. Assume a linear velocity distribution in the water layer.
A 435 kg car moving at 20.0 m/s hits from behind another car moving at 9.0 m/s in the same direction. what is the velocity of the first car after the collision
A pump is needed to lift 750 L of water per minute a distance of 25.0 M. What power (in KW) must the pump be able to deliver? (1L of water has a mass of 1 kg.)
A 1.6 kilogram softball is pitched to you at 36 m/s. You hit the ball back along the similar path, and at the same speed. find the magnitude of the average force the bat exerted
the armature of an ac generator has 100 turns. each turn is a rectangular loop measuring 8.0 cm by 12 cm. the
A simple harmonic oscillator takes 17 seconds to undergo 17 complete oscillations. What is the frequency of the oscillator
A monochromatic light source used in a diffraction experiment has a wavelength of 4.60 x 10-7 m. What is the energy of this photon of light?
Given a binomial distribution with n = 20 and p = 0.76, would the normal distribution provide a reasonable approximation? Why or why not and find the area under the standard normal curve for the following:
You discover that in an alternate universe all the laws of physics are similar except the charge on a electron is -0.9999e and charge of a proton is +e. Now consider two spheres of copper each of mass 1.0 kg. What is the total charge on the spheres?
How fast does the cart move after being loaded with ore? Assume that frictional forces with the flat surface may be neglected
A beam of light is incident upon a flat piece of glass (n =1.50) at an angle of incidence of 45 degrees. Find the angle between the transmitted and reflected rays
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