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A test tube contains 2.90x10^-4 m3 of liquid carbon tetrachloride (? = 1240x10^-6 (C°)-1) at a temperature of 82.0°C. The test tube and the carbon tetrachloride are cooled to a temperature of -14.0°C, which is above the freezing point of carbon tetrachloride. Find the volume of carbon tetrachloride in the test tube at -14.0°C.
How long will a radar signal take to complete a round trip between earth and mars when the two planets are 0.7 AU apart.
The temperature inside a house is 25°C while the temperature outside is 10°C. Approximately how much energy is radiated per second
A charge of -8.0 nC is uniformly distributed around a ring of radius 1.3 m that lies in the yz plane with its center at the origin. Calculate the work done in moving the point charge to the origin
How fast is the top of the tree moving (in m/s) just before it hits the ground? Model the tree as straight, rigid rod, and ignore friction and air resistance.
A wire with a current of 4.90 A is to be formed into a circular loop of one turn. what is the required radius
A 528 Hz sound wave travels through a substance. What is the speed of sound in the substance
A catcher catches a fastball going 95mi/hr and recoils 12cm while stopping the ball in 0.005s. (mass of the ball is 280g). find the average force the ball exerts on the hand & glove
How long would it take for an object dropped from the Leaning Tower of Pisa (height 54.6 meters) to hit the ground, and how fast was the object traveling at the moment of impact
Suppose that a plane is flying due west with an airspeed of 222 km/h. What is the magnitude of the wind velocity
Three capacitors are connected in series. The equivalent capacitance of this combination is 2.70 ?F. Two of the individual capacitances are 6.70 ?F and 8.30 ?F. What is the third capacitance (in ?F)?
A certain black body radiates 1200 W at a temperature of 2000 K. how much power does this body radiate at 3000 K
A 1.15 m long ramp is inclined at 19 degrees to the horizontal. A solid ball is released from rest at the top of the ramp. Find the ball's speed at the bottom of the ramp
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