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Q. A sphere of mass 1.9 × 10-4 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes a constant angle of 17° with the vertical. Find (a) the magnitude of that push and (b) the tension in the cord.
Q. A +3.0nC charge is at x = 0 cm and a -1.0nC charge is at x = 4cm. At what point or points on the x-axis is the electric potential zero?
He would like a prescription for contact lenses to serve the same purpose. What is the exact contact lens prescription, in diopters.
What is the electric field strength between the disks. What is the speed of the box at the end of the 5.7-s interval.
A 20.0 kg wood ball hangs from a 1.3 m long wire. The maximum tension the wire can withstand without breaking is 300 N. A 0.70 kg projectile travelling horizontally hits and embeds itself in the wood ball.
Find out the magnitude and direction of the electric field at a distance.
The liquid level system shown in the below figure is initially at the steady state with the inlet flow rate at 1 cfm. Calculate the maximum & minimum values of the output.
The pilot of an aircraft wishes to fly due west in a 30.50 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 190km/h. What should its speed relative to the ground be.
A 0.410kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 22.0N/m . The block rests on a frictionless surface. A 6.00×10^2kg wad of putty is thrown horizontally at block, hitting it with a s..
An airoplane takeoff speed is 320km/h. if its average acceleration is 2.9m/s^2, how long is it on runway after starting its takeoff roll.
A 1050kg car carrying four 78kg people travels over a rough "washboard" dirt road with corrugations 4m apart which causes car to bounce on its spring suspension.
What is the CD's moment of inertia for rotation about a perpendicular axis by the edge of the disk.
The ball is 21.9 m from the goal post. The ball is kicked with an initial velocity of 19.8 m/s at an angle θ above ground. Between what two angles, θ1 and θ2, will the ball clear the 2.74m high crossbar.
An athlete starts at point A and runs at a constant speed of 6m/s around a round track 100 m in diameter, what is x component of this runner's average velocity between points A and B.
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