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A thin uniform-density rod whose mass is 3.2 kg and whose length is 2.9 m rotates around an axis perpendicular to the rod, with angular speed 35 radians/s. Its center moves with a speed of 13 m/s.
(a) What is its rotational kinetic energy? Km= 1267.97 x J
(b) What Is Its total klnetlc energy? Kmral = 7 J
A copper block is removed from a 306?C oven and dropped into 1.00kg of water at 20.1?C. What is the mass of the copper block
(a) What voltage is produced in the secondary circuit? blank ? V (b) What current flows in the secondary circuit? blank? V
In the two-slit experiment, the distance between the slits and the screen is 1.10 m and the distance between the slits is 0.100 mm. what is the wavelength of light
an arrangement in which four disks are suspended by cords. The longer, top cord loops over a frictionless pulley, What are the masses of each disk
Two circus performers, Jack and Jill, whose total mass is 120 kg, start a swing which is 5 m long such that initially the rope attached to their swing makes an angle of 36 degrees with the horizontal.
A motorcycle daredevil is attempting to jump across as many busesas possible (see the drawing). The takeoff ramp makes an angleθ = 17.0° above the horizontal, and the landing ramp isidentical to the takeoff ramp. The buses are parked side by side,..
A refrigerator is rated at 356 W. What is the maximum amount of heat it can absorb from the food compartment in 1.00 min if the temperature in the compartment is 0.0°C and it releases heat into a room at 30°C
Two motorcycles are traveling due east with different velocities. However, four seconds later, they have the same velocity. During this four-second interval, Which motorcycle was moving faster
Kenny throws a basketball which has an initial speed v0. When the ball gets to its minimum speed sometime before striking the ground, What was the initial angle of the ball
The internal energy of a gas is 1000 J. The gas is compressed adiabatically, and its volume decreases by 500 cm3. what is the internal energy of the gas
a heat pump has a coefficient of performance equal to 4.35 and requires a power of 1.77 kw to operate.a how much energy
what is the weight of sea water displaced by a boat weighing 120kN? d=1300 Kg/m^3 what is the volume of the sea water displaced by the boat
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