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121.7 J of heat energy are transferred to 38.53 g of mercury. By how much does the temperature increase? (in K) How much heat is needed to raise the temperature of 38.53 g of water with the same amount?
A car of mass 1572 kg collides head-on with a parked truck of mass 2000 kg. what is the initial speed of the car
four passengers with combined mass 250 kg compress the springs of a car with worn out shock absorbers by 4.00cm when
In recent years, a number of nearby stars have been found to possess planets. Find the mass of the star
a long solenoid with its axis along the x axis consists of 250 turns per meter of wire that carries a steady current of
If the pipe is open at one end only, how many harmonics are possible in the normal hearing range from 20 to 20000 Hz
A researcher observes hydrogen emitting photons of energy 2.55eV. What are the quantum numbers of the two states involved in the transition that emits these photons
An airplane is sent on a rescue mission to help a stranded explorer near the South Pole. The plane cannot land, but instead drops a supply package of mass m = 58 kg while it is flying horizontally with a speed of vp = 116 m/s.
A diverging lens with a focal length of -14 cm is placed 10 cm to the right of a converging lens with a focal length of 18 cm. Where will the final image be located
The rotor (flywheel) of a toy gyroscope has mass 0.140 kg. Its moment of inertia about its axis is The mass of the frame is 0.0250 kg. Find the upward force exerted by the pivot
A two-slit Fraunhofer interference-diffraction pattern isobserved with light of wavelength 570 nm. what is the separation between the slits
Two capacitors are connected in series. Let 3.40?F be the capacitance of first capacitor, 5.00?Fthe capacitance of the second capacitor, Calculate the potential difference across each capacitor
When serving a tennis ball, the player hits it when its velocity is zero (at the highest point of a vertical toss). find the mass of the ball
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