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Q. A cube of ice is taken from the freezer at -8.4 and placed in a 104 aluminium calorimeter filled with 322 of water at room temperature of 20. The final situation is observed to be all water at 17.
Q. An object weighs 17N in a fluid of unknown density and weighs 21N in water. If the weight of the object in air is 25 N. Compute the density of the fluid.
Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. When the drive force is shut off, the snowmobile coasts to a halt.
Batteries are rated in terms of ampere-hours (A · h). For example, a battery that can produce a current of 3.00 A for 5.00 h is rated at 15.00 A · h.
Gillian buys a pendulum clock at a discount store and discovers when she gets it home that it loses minutes each day.
Tam walks with the velocity of 1.8 m/s west. He does so while riding on a conveyor belt that moves at a velocity of 0.7 m/s west. What is Tam's velocity.
A 52.0 kg ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.0 turns each second. The distance from one hand to the other is 1.50 m. Biometric measurements indicate that each hand characterist..
An automobile club plans to race a 780 kg car at the local racetrack. The car needs to be able to travel around several 170 m radius curves at 85 km/h. What must the banking angle of the curves be so that the force of the pavement on the tires of the..
What mass (in grams) of steam at 100 C must be mixed with 175 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 50.0 C.
A rifle with a barrel length of 56 fires an 8 bullet with a horizontal speed of 350. The bullet strikes a block of wood and penetrates to a depth of 14. (a) What resistive force (assumed to be constant) does the wood exert on the bullet? (b) How long..
Find out the velocity of the rain
The escape speed from a very small asteroid is only 26 m/s. If you throw a rock away from the asteroid at a speed of 39 m/s, what will be its final speed.
How much force is needed to hold a 7.0 cm diameter hose delivering 440 L/min through a 0.73cm diameter nozzle.
Illustrate a new gravitational potential energy
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