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An 8 g of ice cube at %u2013 120 C is put into a thermos flask containing 100 cm3 of tea at 850C.
a). What is the drop in temperature for tea ?
b). What is the rise of temperature for ice?
The specific heat of ice is 2220 J/kg. K, assume tea to be water and the density is 1000 kg/m3.
A rifle is aimed horizontally at a target 54.0m away. The bullet hits the target 2.60cm below the aim point, What was the bullet's flight time
A large capacitance of 1.80 mF is needed for a certain application, Calculate the volume of Teflon alone in the capacitor
A cylinder with a moveable piston contains 178 mL of nitrogen gas at a pressure of 1.22 atm and the temperature of 298 K. What should the final volume be for the pressure of the gas to be 1.52 atm at a temperature of 335 K.
Unpolarized light of intensity I0 passes through six successive Polaroid sheets each of whose axis makes a 40? angle with the previous one
Assume that positive -axis is directed toward the direction of motion of cart 2.
The bullet becomes lodged in the block, and the two slide together on the floor for a distance of 1.3 m before coming to rest. If the coefficient of friction between the block and the floor is 0.40, Elucidate what is the mass of the block?
A 800kg , light-weight helicopter ascends from the ground with an acceleration of 3.50m/s2. What is the work done by the net force on the helicopter?
A parallel plate capacitor has circular plates of diameter 12 cm. The plates are separated by 3 cm, what is the value of the electric field between the plates
A camera has a f=50 mm (f=5 cm) lens. A 1.0 mm (0.1cm) tall ant is 200 mm (20 cm) from the lens. Where should the film be placed
How far does the jet travel while it is accelerating and how large is the force that the catapult must exert on the jet?
A sound source is moving away from the stationary listener at 80 m/s. Find the frequency heard by the listener
The square loop shown is made of wires with a total series resistance of 10 W. It is placed in a uniform 0.100-T magnetic field directed perpendicular into the plane of the paper.
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