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A heat engine operates between a cold reservoir at 10 C and a hot reservoir at 200 C. If the engine performs near maximum efficiency and produces 1000 J of work, how much heat must be exhausted as waste?
A compact 60.00 kg object is attached to one end of a horizontal 40kg uniform steel tube 2.40 m long. What is the distance from the loaded end to the center of gravity of object-tube system?
A 340 g air track cart traveling at 1.25 m/s collides elastically with the 300 g cart traveling in the opposite direction at 1.33m/s. What is the speed of the 300g cart after collision.
A total of 2.99·106 electrons are placed on an initially uncharged wire of length 2.25 m. a) What is the magnitude of the electric field a perpendicular distance of 0.494 m away from the midpoint of the wire? b) What is the magnitude of the accele..
A geiger-muller tube is a type of gas-filled radiation detector. It can detect particles like X-rays, alpha particles and beta rays (electrons). what is the density of the gas in this geiger tube
A lead bullet with a mass of 0.03 kg traveling at 187 m/s strikes an armor plate and comes to a stop. what is the temperature change
A 3kg object attached to a spring oscillates on a smooth horizontal surface. calculate the spring force F(t) exerted on the object versus time t.
A beam of unpolarized light shines on a stack of five ideal polarizers, set up so that the angles between the polarization axes of pairs of adjacent polarizers are all equal. The intensity of the transmitted beam is reduced from the intensity of the ..
q1. two trains each having a speed of 28 kmh are headed at each other on the similar straight track. a bird that can
The radius of the Earth's orbit is 1.50 multiply.gif 1011 m and that of Mercury is 5.81 multiply.gif 1010 m. What is the orbital period of this planet
A 2.10 mass is pushed against a horizontal spring of force constant 26.0 on a frictionless air table. What is the greatest acceleration of the mass
The drawing shows a bicycle wheel resting against a small step whose height is h = 0.108 m. What is the magnitude of the force when this happens
The following data are obtained from a Boyle's law experiment: P1 = 113 kPa, T = 300. K, V1 = 5.00 10-5 m3. Calculate the volume occupied by the gas
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