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Question1
An object floats with half its volume beneath the surface of the water. The weight of the displaced water is 2000 N. What is weight of the object?
A) 1000 N
B) 2000 N
C) 4000 N
D) Impossible to decide without more information
Question2
1.A long cylinder carries a charge density that is proportional to the distance from the axis p=kr, for some constant k. find the electric field inside this cylinder
2. Find out the magnetic induction at a point p along the axis of a closely wound circular coil of N turns and a distant y from the plane of the coil.
3. A charge is distributed consistently along a straight line of finite length 2l.show that for two external points near the midpoint, such that r1 and r2 are small compared to the potential v is the same as for an infinite line charge.
A bicycle wheel, 65 cm across, is half buried in dirt, standing on edge. What was the beetle's average velocity and speed from the time it started climbing until it hit the ground
A power station uses 100 kV to deliver power to a building. The building has a total resistance of 12.5kV. How much power is delivered to the building
The intensity of sound wave A is 100 times that of sound wave B. Relative to wave B, find the sound level of wave A
If a current of 80.0 mA exists in a metal wire, In what direction do the electrons travel with respect to the current
You have a wire of length L = 1.9 m for making a square coil of a dc motor. The current in the coil is I = 1.6 A, Find the maximum torque exerted on the coil
A positive charge of 0.800? C is located in a uniform field of 1.20×105 N/C. A negative charge of -0.400? C is brought near enough to the positive charge that the attractive force between the charges just equals the force on the positive charge du..
Illustrate the role of the Sun's differential rotation in the formation of sunspots. Explain (briefly) the 22 year solar cycle, stating its essential features. Estimate the y-component of magnetic force.
A uranium and iron atom reside a distance R = 43.90 nm apart. The uranium atom is singly ionized; What is the magnitude of the force on the electron from the uranium ion
Find out the maximum height reached by the athlete relative to the trampoline also f ind out the speed of the athlete when she is halfway up to her maximum height
A 5.25 kg ball of clay is thrown downward from a height of 2.79m with a speed of 4.41 m/s onto a spring with k=1530 N/m. The clay compresses the spring a certain maximum amount before momentarily stopping.
the two stars in a binary star system have masses 1.7 x 10 ^ 30 kg and 5.8 x 10 ^ 30kg. They are separated by 2.1 x 10 ^ 12m, What is the speed of the heaviest star
An inexpensive depth gauge used by scuba divers consists of a small diameter tube wrapped around the rim of a dial. An opening or port at one end allows water to enter when submerged.
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