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A baking dish is removed from a hot oven and placed on a cooling rack. As the dish cools down to 30.0°C from 196°C, its net radiant power decreases to 13.0 W. What was the net radiant power of the baking dish when it was first removed from the oven? Assume that the temperature in the kitchen remains at 24.0°C as the dish cools.
A vehicle is speeding at 115 km/h on a straight highway when a police car moving at 145 km/h enters the highway from an onramp and starts chasing it.
The 1400-turn coil in a dc motor has an area per turn of 1.1 multiply.gif 10-2 m2. What is the current in the coil
suppose that no heat is lost to the surroundings, what is the situation when termal equilibrium is reached.
what is the value of the R that gives zero pressure? write down it in terms of h, W and fundamental constants.
Heat is extracted from a certain quantity of steam at 100 degrees celsius. Thus the steam changes into ice at 0 degrees celsius. If this energy were used to accelerate the ice from rest, what would be the linear speed of the ice.
A uranium and iron atom reside a distance R = 59.70 nm apart. The uranium atom is singly ionized; the iron atom is doubly ionized. what is the magnitude of the force on the electron from the uranium ion
A 1000-kilogram race car is traveling at 60 m/s around a curved section of track that has a radius of 300 m. What is the centripetal force that acts on the car
"Jerk" is the rate of change of acceleration, and it's what can make you sick on an amusement park ride. Find an expression for the maximum jerk
A neutron star has a mass of 2.20 × 10^30 kg (about the mass of our sun) and a radius of 5.20 × 10^3 m. Assume an object falls from rest near the surface of such a star. How fast would it be moving after it had fallen a distance of 0.0083 m.
A person with nearsightedness was prescribed with contact lenses of power -2.0 D. What is the range of object distances that this person can see clearly with the wrong lenses
A small plane departs from point A heading for an airport 500 km due south at point B, Determine the proper heading for the plane and the time of flight
suppose that they have same internal energy, which will have a higher temperature: a metal knife in thermal equilibrim with a hot griddle or a 1kg block of ice at -25C or seven 12g ice cubes at -25C.
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