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Two identical 1.70kg masses are pressed against opposite ends of a spring of force constant 1.70N/cm , compressing the spring by 15.0cm from its normal length. Find the maximum speed of each mass when it has moved free of the spring on a smooth, horizontal lab table. vmax=? m/s
A car accelerates from rest to a kinetic energy of 2.06 x 105 J in a distance of 638 m. How much force did the car's engine deliver to produce this acceleration.
In a women's 100-m race, accelerating uniformly, Laura takes 1.81 s and Healan 3.06 s to attain their maximum speeds, which they each maintain for the rest of the race.
A force of 323N is applied horizontally to a crate in order to displace crate 30m across a level floor at a constant velocity. As a result of this work.
What is the y component (in Newtons) of F
Neglect friction, what steady force, applied at its outer edge and perpendicular to plane of the door, can move it from rest through an angle of 90° in 30 s.
An automobile club plans to race a 700kg car at the local racetrack. The car needs to be able to travel around several 155m radius curves at 87km/h.
What is the coefficient of kinetic friction between sled and incline? (Enter 0 if sled does not move.)
A current of 18 Ampere runs through the Parallel Wire Apparatus. What is the anticipated mass (in milligrams) for balancing the frame-balance
If the ball was thrown from the street, when does it reach the street again after it passes by window on the way up.
The string has a breaking-point force of 45 N. Illustrate what is the largest value v can have without the string breaking?
What vertical height does block reach above its starting point. What speed does it have when it slides back down to its starting point.
The resolving power of a microscope depends on the wavelength used. If you wanted to "see" an atom, a wavelength of approximately 1 × 10-11 m would be required.
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