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Two toy locomotives approach each other along the same line, and upon collision both stop dead still. One locomotive has three times the speed of the other and the sum of their masses is 4.98 kg.
What is the mass of the faster locomotive?
The International Space Federation constructs a new spaceship thatcan travel at a speed of 0.995c. Mary boards the spaceship totravel to Barnard's star which is 5.98 ly away. After reachingBarnard's star, the spaceship travels slowly around the st..
The image of an object through a diverging lens is 5.00 cm in front of the lens. If the magnification is 0.250,determine object distance and and focal length
A 48dB sound wave strikes an eardrum whose area is 4.2×10?5m^2. How much energy is absorbed by the eardrum per second
If a drop is to be deflected a distance = 0.28 by the time it reaches the end of the deflection plate, what magnitude of charge should be given to the drop? Imagine that the density of the ink drop is 1000 and ignore the effects of gravity.
q1. a solid rock is suspended in air by a spring scale. the rock has a mass of 2.50 kg. when the rock is dunked in
In a skating stunt known as "crack-the-whip," a number of skaters hold hands and form a straight line. find the magnitude of the centripetal force that acts on him
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 4.72 x 105 N. What is the work done on the jet by the catapult
A plane, diving with constant speed at an angle of 40.7° with the vertical, releases a projectile at an altitude of 622 m. How far does the projectile travel horizontally during its flight
Alberta is going to have dinner at her grandmother's house, but she is running a bit behind schedule. What is the slowest speed at which she could drive
A commuter backs her car out of her garage with a constant acceleration of 1.60 m/s2. If she then brakes to a stop in 0.8 s, what is her (constant) deceleration
An airplane has an effective wing surface area of 15 m2 that is generating the lift force. What is the weight of the plane
A 70 turn coil of radius 4.6 cm rotates in a uniform magnetic field having a magnitude of 0.45 T. find the magnitude of the maximum torque exerted on the coil
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