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A car's bumper is designed to withstand a 6.84-km/h (1.9-m/s) collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the magnitude of the average force on a bumper that collapses 0.180 m while bringing a 850-kg car to rest from an initial speed of 1.9 m/s.
Initially sliding with a speed of 2.5m/s , a 1.9kg block collides with a spring and compresses it 0.31m before coming to rest. What is the force constant of the spring
a 60.0-kg mass person wishes to push a 100-kg mass box across a level floor. the coefficient of static friction between
What is the average power in watts he expends climbing the hill - Please show your step-by-step solution along with formulas.
Determine the net force of gravity acting on the Moon during an eclipse when it is directly between Earth and the Sun. Assume that the Moon is located at the origin of a coordinate axis and that the Earth is in the positive direction.
Choose the correct explanation for why you can determine the maximum load given that theta_min is the minimum angle crane arm can make with the horizontal.
First off, a naive theorist question - How are measurements divided between the different detectors at the LHC? I would imagine that for a short run time, say, the CMS detector is active and all the others are turned off (the beam just passes thro..
A Na+ ion moves from inside a cell, where the electric potential is -68 mV, to outside the cell, Does its energy increase or decrease
A planet of mass m = 1.35 × 10^24 kg is orbiting in a circular path a star of mass M = 7.35 × 10^29 kg. What is the orbital period (in earth days) of the planet Tplanet
4m, 32 degrees east of north 57.3m, 36 degrees south of west 17.8m, straight south. calculate the resultant displacement vector
Is kinetic energy consumed in the third type of collision studies? Classify the three collision kinds as elastic, inelastic, or completely inelastic.
Squids rely on jet propulsion to move around. A 1.7 squid drifting at 0.50 suddenly expels 0.11 of water backward to quickly get itself moving forward at 2.4. If drag is ignored over the small interval of time needed to expel the water (the impulse a..
A helium-neon laser (? = 632.8 nm) is used to calibrate a diffraction grating. If the first-order maximum occurs at 21.5°, what is the spacing between adjacent grooves in the grating? (In this problem, assume that the light is incident normally on th..
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