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A tetherball leans against the smooth, frictionless post to which it is attached. The string is attached to the ball such that a line along the string passes through the center of the ball. The string is 1.60m long and the ball has a radius of 0.190m with mass 0.310kg .
a) what is the tension in the rope?
b) what is the force the pole exerts on the ball?
The head of a rattlesnake can accelerate at 50 m/s^2 in striking a victim. If a car can have the same acceleration, how long would it take for it to reach a speed of 100 km/h from rest.
In the physics lab a metal spring is stretched 10cm vertically downward by a 500 g mass attached to it. How much would the similar spring with the same attach mass stretn themon? The mass of the moon is 7.35 x 10 to the 22kg, gravity is 1.62 m/s a..
Two aluminum wires have the same resistance. If one has twice the length of the other, what is the ratio of the diameter of the longer wire to the diameter of the shorter wire
An airplane with a speed of 87.7 m/s is climbing upward at an angle of 35.1 ° with respect to the horizontal. When the plane's altitude is 533 m, the pilot releases a package.
It makes a head on elastic collision at B with a block of mass m2 = 12.0 kg that is initially at rest. Compute the maximum height to which m1 rises after the collision. height = 5m
The lows note emitted by stretched string has a frequency of 50Hz.how many outcome are possible between 40Hz and 170Hz.
A 1300-kg car moving on a horizontal surface has speed v = 55km/h when it strikes a horizontal coiled spring, What is the spring stiffness constant of the spring
A motorist suddenly notices a stalled car and slams on the brakes, negatively accelerating at 6.2 . Unfortunately this isn't enough, and a collision ensues.
A spring gun is used to launch a metal ball horizontally from a height h1=75.0cm above the floor, What is the height h2 of this taller table
Identical point charges of +3.6 C are fixed to diagonally opposite corners of a square. A third charge is then fixed at the center of the square, such that it causes the potentials at the empty corners to change signs without changing magnitudes.
What is weight of the parachutist
A farmer planted a field of Bt 123 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in 1/1000 of an acre. He determines that each ear has about 700 kernels on average. He also knows that the bushel contains abou..
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