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A pendulum of length 7.87 m is released from rest at an angle of 22.4 º from the vertical. What is the maximum speed of the pendulum? Please use conservation of energy to solve this problem.
Two loudspeakers are vibrating in phase. They are set up as point C is located. Assume the speed of sound is 342 m/s. The speakers play the same tone. What is the smallest frequency that would produce destructive interference at point C.
A large container, open at the top, is half-filled with water (?H2O = 1000 kg/m3). Determine the fractions of the cube immersed in water and oil
vector a points in the negative y direction and has a magnitude of 4 units. vector b has three times the magnitude and
A centrifuge in a medical laboratory rotates at an angular speed of 3450 rev/min. Find the constant angular acceleration of the centrifuge
The angular momentum of Earth is constant
A 50.0 kg child stands at the rim of a merry-go-round of radius 2.10 m, rotating with an angular speed of 2.90 rad/s. What is the child's centripetal acceleration
Suppose a muon produced as a result of a cosmic ray colliding with a nucleus in the upper atmosphere has a velocity v = 0.9500c. What distance is this in the muon's frame
A photon Compton scatters off of a stationary electron at an angle of 60 °. Determine the initial wavelength of the photon
Ships A and B leave port together. For the next two hours, What is the distance between the two ships two hours after they depart
A 0.449 kg ice puck, moving east with a speed of 2.91 m/s, has the head-on collision with a 0.846 kg puck initially at rest. Assume a perfectly elastic collision, what will be the speed and direction of each object after the collision.
q1. the potential difference between the plates of a capacitor is 70 v. midway between the plates a proton and an
Let us model the electric behavior of such a molecule by a pair of ±1.60 × 10-19-C charges connected by a spring with force constant 8.29 × 10-4 N/m, Find the charge separation distance in an electric field of 6.41 × 105 N/C
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