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A thermos contains 153 cm3 of coffee at 93.9 °C. Tocool the coffee, you drop two 14.0-g ice cubes into the thermos.The ice cubes are initially at 0 °C and melt completely. What is the final temperature of the coffee in degrees Celsius? Treatthe coffee as if it were water.
a friend passes by you in a spacecraft traveling at a high speed. he tells you that his craft is 20.0 m long and that
You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, Find the net downward force on the tank's flat bottom, of area 2.45m2 , exerted by the water and air inside the tank and the air outside the tank
A 1400 kg car traveling in the positive direction takes 15.0 seconds to slow from 25.0 meters per second to 12.0 meters per second
The power supplied to a typical black-and-white television set is88 W when the set is connected to 120V. How much electrical energy does this setconsume in 1 hour?
the hammer throw is a track-and-field event in which a 7.0-kg ball the hammer starting from rest is whirled around in a
A series RLC circuit contains the following components: R = 3.00 102 ?, L = 3.50 102 mH, C = 5.00 µF, and a generator with ?Vmax = 2.20 102 V operating at 80 Hz. Calculate the individual maximum voltages across the resistor, inductor
a skateboarder starting from rest rolls down a 14.6-m ramp. when she arrives at the bottom of the ramp her speed is
consider light that is refracted by a prism shaped like an equilateral triangle. the incident ray is parallel with the
A uniformly accelerated car passes three equally spaced traffic signs. The signs are separated by a distance d = 21 m. obtain the magnitude of the acceleration of the car
The average depth of Earth's oceans is 2.236 mi. Suppose 68% of the earth is covered in water and that the population of the earth is 6.33 billion. (a) How much water mass on the surface of earth is there per person and (b) to help visualize it, w..
A CD rotating at 1200 rpm starts slowing down at a constant rate such that, after the first two seconds, it has made 10 rotations. Find the time needed for the CD to come to rest
Power windmills turn in response to the force of high-speed drag. For a sphere moving through a fluid, the resistive force, FR is pro- portional to r2v2, where r is the radius of the sphere and v is the fluid speed.
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