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The front end of an automobile has been designed so that upon impact it progressively crumples by as much as .70m. Suppose that the automobile crashes into a solid brick wall at 80 km/h. During the collision the passengner compartment decelerates over a distance of 0.70m. Assume that the deceleration is constant. What is the magnitude of the deceleration? If the passenger is held by a safety harness, is he likely to survive? (Hint: Compare the deceleration with the accerleration listed of a parachutist in Table 2.2.)
A small, 100g cart is moving at 1.30m/s on an air track when it collides with a larger, 2.00kg cart at rest. What is the speed of the large cart after the collision
A 35 kg block of ice slides down a frictionless incline 1.6 m along the diagonal and 0.63 m high, Find the magnitude of the worker's force. How much work is done on the block by the worker's force
Two point charges each have a value of 30.0 mC and are separated by a distance of 4.00 cm. What is the electric field midway between the two charges
An incoming 40 keV photon interacts with an atom by the Compton scattering process, what is the energy of the scattered photon
A crate of 48.0 tools rests on a horizontal floor. You exert the gradually increasing horizontal push on it and observe that the crate just begins to move while your force exceeds 344. After that you must reduce your push to 260 to keep it moving at ..
The first-order bright fringe is a distance of 4.84 from the center of the central bright fringe. For what wavelength of light would the first-order dark fringe be observed at this similar point on the screen.
Starting from rest a 12 Kg block slides down a frictionless curved slide (h = 8m, the vertical height) from A to B. Find the work done by friction in stopping the block
A gymnast on a high bar swings through three revolutions in a time of 2.90 s. The magnitude of the average angular velocity of the gymnast, in rad/s, is
A high-speed flywheel in a motor is spinning at 450 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 72.0 cm. How many revolutions would the wheel have made during this time
The Earth and Moon are separated by about 400 ? 106 m. Suppose Mars is 1.6 1011 m from Earth and forms a right triangle with Earth and the Moon. determine the angular separation of Earth
A soccer playrer kicks a 0.5kg ball from rest to a speed of 9m/s during a 0.15s contact between his foot and the ball. What is the average force applied by the players foot during the kick
question 1 polymer diffusion the figure below indicates the result of a particle tracking experiment where lateral
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