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What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to four times the Earth's radius before coming to rest momentarily? Mass of the Earth = 5.97e24 kg Radius of the Earth = 6.37e6 m
It collides with and sticks to the spring, which is compressed by 2.50 cm in bringing the block to a momentary halt. Assuming air resistance is negligible; from what height (in cm) above compressed spring was the block dropped.
A long, straight wire runs along the axis of the solenoid, carrying a current of 15. Find out the magnitude of the net magnetic field a radial distance of 0.80 from the straight wire.
Sketch a vector diagram of the earth's magnetic field. The dip angle is 65 degrees, Determine Bearth by simple trigonometry
Illustrate what was the magnitude of the centripetal acceleration of the rock when it was on the string? (b) What was its speed when it was on the string?
On a very muddy football field, a 100 linebacker tackles a 75 halfback. Immediately before the collision, the linebacker is slipping with a velocity of 8.9 north's and the halfback is sliding with a velocity of 7.9 east's.
In vacuum, two charged particles lie 2.5 cm apart. Find the magnitude and direction of the electric field at a point midway between the two particles. (One has a charge of -8.0 µC and the other has a charge of +4.0 µC.) Magnitude.
A shell of mass m and speed v explodes into two identical fragments. If the shell was moving horizontally (the positive x direction) with respect to Earth, and one of the fragments is subsequently moving vertically with speed v, find out the velocity..
two flexible wires (massless) suspend a 10 cm-long conductor in the magnetic field with b = 4.2T. what is the current to let the wire just have zero tension
a uniform stick 1.5 meters long With a massive 220 kg is pivoted at its center a 3.9 kg bullet is shot through the stick midway between the pivot, What is the angular speed of the spinning stick
Emilie's potter's wheel rotates with a constant 2.20rad/s2 angular acceleration. What was the angular velocity of the wheel at the beginning of the 3.30s interval
Two identical carts travel at 1m/s in opposite directions on a common horizontal surface. They collide head-on and are reported to rebound, each with the speed of 2m/s.
Four charged particles rest at the corners of a square of side a = 0.30 m. Charges 1 through 4 are 10, 20, 30 and 40 µC, Determine the electric field at the center of the square
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