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A Carnot engine uses a hot reservoir consisting of a large amount of boiling water and a cold reservoir consisting of a large tub of ice and water. When 6283 J of heat is put into the engine and the engine produces work, how many kilograms of ice in the tub are melted due to the heat delivered to the cold reservoir? Do not enter unit.
q1. a guitar string is 75 cm long and has a mass of 3.8 g. from the bridge to the support post l is 60 cm and the
A 1,030-kg car is pulling a 285-kg trailer. Together, the car and trailer have an acceleration of 2.00 m/s2 in the positive x-direction. determine the force exerted by the trailer on the car
A 2.67 ? resistor, a 5.52 ? resistor, and a 8.10 ? resistor are connected in series with a 24.0 V battery. What is the equivalent resistance? What is the current in each resistor?
One simple model for a person running the 100{\rm m} dash is to assume the sprinter runs with constant acceleration until reaching top speed, what will be his total time
question1reduce equations of motion to an equivalent one-dimensional problem and discuss qualitative nature of the
An insulated Thermos contains 119 cm3 of hot coffee at 64 °C. You put a 12g ice cube at its melting point to cool the coffee. By how a lot of degrees have your coffee cooled once the ice has melted and equilibrium is reached.
A thin film of acetone (n = 1.25) coats a thick glass plate (n = 1.50). White light is incident normal to the film. In the reflections, fully destructive interference occurs at 600 nm and fully constructive interference is seen at 700 nm. No other de..
I just got this wrong for the third time. A u-tube manometer is used to measure the pressure of a vessel under vacuum. Assume the manometer is open to atmospheric pressure.
The asteroid has a radius of about 9.70 km. Find the acceleration due to gravity at its surface
A hollow cone (like a party hat) has vertex angle 2?, slant height L, and surface charge density ?. It spins around its symmetry axis with angular frequency ?. What is the magnetic field at the ti
Two 1.6V. batteries are connected together in series to a bulb whose resistance is 60 ohms. How many electrons leave each battery per minute
a projectile is launched vertically from the surface of the moon with an initial speed of 1100m/s. At what altitude is the projectile's speed one-half its initial value
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