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A heat pump has a coefficient of performance of 3.75 and operates with a power consumption of 6.89 103 W. How much energy does it extract from the outside air?
The cost recovery method was chosen.
The two wires of length 2 m are 3 mm apart and carry a current of 10 A dc. Calculate the force between these wires
Doubling the total energy of a particle: (a) Does not affect its momentum (b) quadruples its momentum (c) more than doubles the momentum (d) doubles its momentum (e) less than doubles its momentum I know the answer is (c) but what equation is used to..
What transfer price will provide an equal rate of return for each of the investors in the first year of operation?
Two satellites are headed towards each other and crash. The one on the left has a rest mass of 200 kilograms and a velocity of .8c. The one on the right has a rest mass of 100 kilograms and a velocity of .6c. What is the resultant direction is and th..
Light hits the surface of water (n = 1.33) at an incident angle of 25.0 degrees with respect to the normal line. What is the angle between the reflected ray and the refracted ray? The answer is 136.5 but I'm getting 18.5.
After a 3.01 resistor is connected across a battery with a 0.21 internal resistance, What is the rated emf of the battery
A transverse periodic wave is represented by the equation z(y,t) = 3.2 cm sin( 5m^-1 y + 1500 rad/s t). What is the frequency of the vibration of the wave? Give answer in Hz
A rubber balloon is filled with 1 L of air at 1 atm and room temperature. what is the new volume of the balloon
Accounting Capstone Research Project
A famous mad-physicist Dr. Strangelove tries to find out how much energy is contained in one liter of sunlight. How much energy is contained in in one liter of sunlight
Find the speed of light in flint glass (refraction index 1.67). Use 2.99792x10^8 m/s for the speed of light. Find the speed in light in zircon
A 61 kg rock with a volume of 33 L is completely submerged in water. The density of water is 1 kg/L. What mass of water is displaced by the rock
A box of textbooks of mass 25.9kg rests on a loading ramp that makes an angle \alpha with the horizontal. find the minimum angle at which the box starts to slip
During a week of study, a 9.0 acre pond receives 65 mm of rain. An adjacent Sunken Colorado pan records an evaporation of 38 mm. What is the net change of water volume in the pond
A rectangular loop is located next to a long straight wire carrying a current of 30.0 A. What is the direction of the net force on the loop
A set of crash tests consists of running a test car moving at a speed of 11.8 m/s (26.4 mi/hr) into a solid wall. Calculate the size of the average force which acts on the dummy during that time
Consider a rectangular metal loop of length of 0.15m and width of 0.08m. Determine the emf induced in the wire on the left side of the loop
A particular satellite was placed in a circular orbit about 160 mi above Earth. Determine the time required for one complete revolution
A series RLC circuit has a peak current of 1.0 A with a frequency of 7 kHz. determine the average power of the circuit over one cycle
An automobile of mass 1500 kg and a truck of 3500 kg collide at an intersection. What is the velocity (magnitude and direction) of the vehicles immediately after collision
A refrigerator uses an ideal Carnot cycle to cool its interior. The outside air has a temperature of 302 K and the refrigerator is kept at a temperature of 276 K. find the coefficient of performance of this refrigerator
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