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1. An aluminum wing on a passenger jet is 28m long when its temperature is23°C.At what temperature would the wing be2cm (0.02m)shorter?
2. A bottle containing 6 kg of water at a temperature of 16°C is placed in a refrigerator where the temperature is kept at 5°C. How much heat is transferred from the water to cool it to 5°C?
3. A 0.08-kg lead bullet traveling 307 m/s strikes an armor plate and comes to a stop. If all of the bullet's energy is converted to heat that it alone absorbs, what is its temperature change?
a car travels along a straight line at a constant speed of 51.5 mih for a distance d and then another distance d in the
He-Ne lasers are often used in physics demonstrations. They produce light of wavelength 633 nm and a power of 0.500 mW spread over a cylindrical beam 1.30 mm in diameter, What is the maximum value of the electric field
A proton takes 99.0?s to complete one orbit around a 14.5 m diameter cyclotron. What's the cyclotron's magnetic field
A color television needs to be plugged into a 120-volt circuit. It uses 2.5 amperes. What is the television's wattage? Select one: a. 48 amps b. 48 watts c. 300 volts d. 300 watts What is the power of an appliance that is operating at a current of 2 ..
an airplane is flying in a horizontal circle at a speed of 510.6 kmh. the plane is banked for this turn its wings
A crate of mass m = 33 kg rides on the bed of a truck attached by a cord to the back of the cab, find the maximum acceleration the truck can have before the cord breaks
What will be the equilibrium temperature while a 238 block of copper at 230 is placed in a 133 aluminium calorimeter cup containing 831 of water at 16.0.
An electron moves at 2 × 106 m/s through a region in which there is a magnetic field of unspecified and magnitude 7.4 × 10-2 T. Find the largest possible magnitude of the acceleration of the electron due to the magnetic field
The following charges are located inside a submarine: 4.00, -8.00, 25.0, and -60.0. find the net electric flux through the hull of the submarine
Three charged particles are placed at corners of an equilateral triangle of side 1.20m. The charges are + 7.0 mc,-8.0 mc and -6.0 mc compute the magnitude and direction of the net force on each due to the other two.
A plano convex lens of focal length 16 cm is fixed on the side of the box with convex surface outside an object is placed at 26 cm from the lens find the position of the image while (1) the box is empty (2) field with water.
What are the d irections of electric field
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