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Q1. A 77 kg man drops from rest on a diving board -3.1m above the surface of the water and comes to rest .41s after reaching the water. The acceleration due to gravity is 9.81 m/s2. What force does the water exert on the man?
Q2. Two long thin parallel wires 13.0 cm apart carry 32 A currents in the same direction. Determine the magnetic field at point P, 12.0 cm from one wire and 5.0 cm from the other.
Q3. When two tuning forks of 131 Hz and 150 Hz, respectively, are sounded simultaneously, how many beats per second are heard?
Which color has the highest index of refraction
With what minimum speed should you toss a 140g ball straight up to hit the 11.0m-high roof of the gymnasium if you release the ball 1.30m above the ground? Resolve this problem using energy.
An archer puts a 0.26 kg arrow to the bowstring. An average force of 213 N is exerted to draw the string back 1.3 m. unless otherwise directed, suppose that air resistance is negligible. Illustrate energy bar graphs to solve the problem.
A 1590 kg car starts from rest on a horizontal road and gains a speed of 61 km/h in 30 s (a) what is its kinetic energy at the end of the 30 s.
A 40 g rifle bullet travelling 260 m/s buries itself in a 4.0 kg pendulum hanging on a 3.0 m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of pendulum's displacement.
How much time is spent in pushing the mower
What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
What is momentum of a truck speeding down the highway at a given instant? Discuss how the momentum is changed if the truck loses some of its cargo while maintaining the same velocity.
What is electric field in the wire
What is lemmings kinetic energy
What is an average speed of this train
The electric field points radially outward at all points within the sphere (and outside too, for that matter). What is the strength of the electric field at a distance r from the center, inside sphere.
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