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A 1500-kg car starts from rest to reach 60.0 miles/h in 7.50 s.
(a) How much work is done by the engine during the acceleration?
(b) What is the engine's power output?
(c) If the same car moving at 55.0 miles/h brakes to a complete stop, how much heat (in joules AND in kcals) is generated? 1 kcal = 4186 J.
A flywheel rotates with an angular speed of 23rev/s. As it is brought to rest with a constant acceleration, it turns 45rev. How much time does it take to stop
A light ray initially in water enters a transparent substance at an angle of incidence of 39.0°, Calculate the speed of light in the transparent substance
A solid concrete block weighs 250 N and is resting on the ground. Its dimensions are 0.400 m x 0.190 m x 0.0880 m. What is the smallest number of whole bricks
In a series R-L-C circuit, the phase angle is 40.5?, with the source voltage leading the current, Find the reactance of the inductor
Light traveling in water strikes the boundary between two mediums at an angle of 35 degrees. what is the wavelength of the refracted light traveling at 1.85x10^8m/s
One trajectory that can be used to send spacecraft from Earth to Mars is an elliptical orbit that has Sun at one focus, its perihelion at Earth, Find the semimajor axis of the ellipse
Determine the inductance of a solenoid with 650 turns in a length of 20cm . The circular cross section of the solenoid has a radius of 4.1cm
charge 1 is equal to 6.0x10^-9 C, and is located at (0.30,0) meters on xy coordinates. What is the direction the net force on the 5.0 nC charge
We have a container of a hot ideal monatomic gas. The volume of the container is 25 liters. determine the change of internal energy of the gas
presume you had job offers from two companies that differed only in how often they produced CEOs. Would these differences affect your decision.
An experimental bicycle wheel is placed on a test stand so that it is free to turn on its axle. What is the torque supplied by friction
Must show all work and calculations!!!! A primitive yo-yo is made by wrapping a string several times around a solid cylinder with m=200g and r=10cm. Find the tension in the string and the acceleration of the cylinder
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