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Batman (mass = 95.9 kg) jumps straight down from a bridge into a boat (mass = 683 kg) in which a criminal is fleeing. The velocity of the boat is initially +8.67 m/s. What is the velocity of the boat after Batman lands in it?
A fly sits 9.2 cm from the center of a turntable. Through how many revolutions must the turntable rotate per minute in order for the fly to have an acceleration of 9.8 m/s2 toward the center
In a head-on collision, a car stops in 0.3s from a speed of 30 m/s. What is the force applied to the driver by his seat belt during the collision
A tennis ball is struck and departs from the racket horizontally with a speed of 28.2 m/s. How far above the court is the tennis ball when it leaves the racket
Two capacitors, C1 = 2x10^-6 F and C2 = 4x10^-6 F, are connected in series with an 18 V battery. Find the final charge and potential difference for each capacitor
A block rests on the frictionless horizontal surface and is attached to a spring. While set into simple harmonic motion, block oscillates back and forth with an angular frequency of 6.5 rad/s.
On a workday the average decibel level of a busy street is 74 dB, with 100 cars passing a given point every minute. what is the decibel level of the street
Three equal positive point charges of magnitude Q = 12.00%u03BC C are located at three corners of a square of edge length d = 11.1 cm. What is the magnitude of the attractive force on the negative charge
A 300-g mass at the end of a Hookean spring vibrates up and down in such a way that it is 2.0 cm above the tabletop at its lowest point, determine the amplitude of vibration
A cart of mass 1.91kg traveling 1.29m/s inelastically strikes a stationary mass of 0.41kg. What is the total momentum of the system
a car traveling 85 km/hr strikes a tree. the front end of the car compresses and the driver comes to rest after traveling 0.8m. Determine the time it takes the car to stop
A catapult with a radial arm 4.19 m long accelerates a ball of mass 19.1 kg through a quarter circle. The ball leaves the apparatus at 41.6 m/s. Find the moment of inertia of the arm and ball
A person with normal eyesight uses a converging lens of focal length 10 cm. At what distance from the job he must hold the lens
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