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The pressure on 0.2 kg of water is increased reversibly and isothermally from atmospheric pressure to 3 x 108 Pa at 20°C. (Numerical values are given in Table)
(a) How much heat is transferred?
(b) How much work is done?
(c) Calculate the change in internal energy.
At a distance of 25m from an isotropic 100 MHz radio source the intensity is 120W/m2. What is the rms electric field at 25m? Over a 2 hour period, what is the momentum given to a 4cm x 4cm surface (at the 25m distance) perpendicular to the source tha..
A skateboarder shoots off a ramp with a velocity of 6.6 m/s,directed at an angle of 58° above the horizontal. The end ofthe ramp is 1.2 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take a..
Express your answer with the appropriate units.
A mechanism is shown in the following figure. Link ABC has an arc slot with a radius of R =100mm . The center of the arc O1 is on the line BC. The crank OA has a length of 100 mm. It rotates about point O with a constant angular velocity of ω =4 r..
A bat flies toward a wall at a speed of5.0m/s. As it flies, the bat emits an ultrasonic sound wave with frequency29.5kHz. What frequency does the bat hear in the reflected wave
A person pulls a 26kg suitcase using a rope attached to the suitcase at an angle of 28 degrees to the horizontal. The coefficient of static friction of the suitcase with the floor is 0.3 and the coefficient of kinetic friction is 0.20.
A vehicle attempting to aerbrake into orbit around Mars needs to achieve an equivalent deltaV(retro) of 2 km/s. what is the average drag force (in g's) we must attain
question1find out the normal force for a laundry basket with a mass of 3.4 kg in each of the following situationsa at
At what rate is heat lost through a 1.0 m * 1.5 m rectangular glass windowpane that is .5 cm thick when the inside temperature is 20 degress celcius and the outside temperature is 5 degrees celcius? The thermal conductivity for glass is .80 W/(m*degr..
A 1,8000-kg SUV rounds a flay (unbanked) curve with a radius of 90m. the average coefficients of kinetic and static friction between the tire of the car and the road are static coefficient = 0.85, What is the maximun driving speed for the car
When something gets wet, it usually appears darker. This can be observed with soil, sand, cloth, paper, concrete, bricks. What is the reason for this? How does water soaking into the material change its optical properties?
A flywheel of mass 182 kg has an effective radius of 0.61 m (assume the mass is concentrated along a circumference located at the effective radius of the flywheel). What is the applied torque on the flywheel
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