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An automobile driver pushes on the gas pedal for 12 seconds and the car traveled from zero to 100 mph. What distance does the car travel?
consider a heat pump which is used to cool down a home during the summer. its coefficient of performance in cooling
A beaker with a capacity of exactly 100mL contains 99.5mL of ethanol at 19degrees C. If it's temperature rises at what temperature will it overflow? (Ignore expansion of the beaker). The answer is not 23.6 degrees C so I am not sure how to figure it ..
A child has a temperature of 101F. If her total skin area is 18 m2, find the energy loss per second due to radiation, assuming the emissivity is 1
10.0g of aluminum at 200?C and 22.0g of copper are dropped into 42.0cm3 of ethyl alcohol at 15?C. What was the initial temperature of the copper
A 100 Ohm resistor dissipates heat to its surroundings, isothermally. The resistor maintains a constant temperature of 300 K. What is the change in entropy of the resistor
A uniform charge density of 680 nC/m3 is distributed throughout a spherical volume of radius 6.00 cm. What is the electric flux through this cubical surface if its edge length is 3.30 cm
You need to prepare a 0.103mm diameter tungsten wire with a resistance of 2.05 kQ. How long must the wire be
What is atmospheric pressure on top of Mt. Everest on a day when water boils there at a temperature of 80.0°C
Objects A and B each have mass m. Each is traveling at speed v and in the opposite direction from the other object. As explained by the law of conservation of momentum, which event could not occur after the two objects collide?
A circuit consists of a 215-Ω resistor and a 0.200-Hinductor. These two elements are connected in series across generator that has a frequency of 130 Hz and a voltage of 245 V.
A bullet is moving at a speed of 367 m/s when it embeds into a lump of moist clay. The bullet penetrates for a distance of 0.0621 m. Determine the acceleration of the bullet while moving into the clay. (Assume a uniform acceleration.)
Two ropes are pulling upward on a large crate. The weight of the crate is 350. N. The tension in the left rope is the same as the tension in the right rope. what is the tension in the left rope
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