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A car with a mass of 1000 kg is driving over a hill at a constant speed of 60 m/s. The top of the hill can be approximated by an arc length of a circle with a radius of 370 m. What is the weight (in N) of the car at the top of the hill?
A solar water heater for domestic hot-water supply uses solar collecting panels with a collection efficiency of 47.0% in a location where the average solar-energy input is 200 W/m^2...... If the water comes into the house at 15.0C and is to be heated..
q. having completed the basics of the memory system we turn not to issues involving memory. one important issue is the
What is the frequency of light that has the wavelength in water of 788 nm if the refractive index for this light is 1.33.
A simple barometer has a thin layer of water on top of the mercury column. What is the atmospheric pressure
Find chemical potential exactly as a function of temperatureT for the given gas density n=N/S where S is the surface area. Is there Bose-Einstein condensation? Explain your answer.
Atomic nuclei have a typical density of about 10^(17) kg/m^3. The density of liquid mercury is roughly 10^(4) kg/m^3. Approximately what fraction of the volume of liquid mercury is empty space between mercury nuclei?
A loudspeaker diaphragm is producing a sound for 2.63s by moving back and forth in simple harmonic motion. How many times does the diaphragm move back and forth
A 12 kg runaway grocery cart runs into a spring with spring constant 300 N/m and compresses it by 70 cm.What was the speed of the cart just before it hit spring.
Two charges charges of -2.1 micro-coulombs and a charge of +2.1 micro-coulombs are placed on the corners of an equilateral triangle where the length of a side is 44 cm as shown in the sketch below. What is the magnitude of the total electric field..
An airplane flies 200 km due west from city A to city B and then 300 km in the direction of 30 degrees North of West from city B to city C. In straight-line distance, how far is city C from city A.
A horizontal beam of positrons initially moving at 3.3 107 m/s is deflected vertically by the vertical electric field between oppositely charged parallel
On a very muddy football field, a 120 kg linebacker tackles an 80 kg halfback. Immediately before the collision, the linebacker is slipping with a velocity of 8.8 m/s north, What is the direction of this velocity
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