Compare the force an abrupt
Compare the force an abrupt(hard) and a cushioned (soft) collision if the impulse are equivalent. use word and also sketch the force vs. time graphs.
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Two people are pushing their stalled car up a hill with an incline of 2.00°. They are pushing parallel to the surface of the hill. The car's mass is 954 kg. What is the combined force they must apply to keep the car moving at a constant speed
The unit vectors along the cartesian coordinate axes') in units of Tesla. Calculate the y-component of the magnetic force acting on a segment of wire of length L = 18.0 cm.
Hold the switch closed. Place the Magnetic Field Sensor between the turns of the Slinky near its center. Rotate the sensor and determine which direction gives the largest positive magnetic field reading. What direction is the white dot on the sen
(Assume that the Sun's luminosity remains nearly constant during the entire 1.2×1010 years.) What fraction does this represent of the total mass of hydrogen that was originally in the Sun?
A car moves along an x axis through a distance of 900 m, starting at rest (at x = 0) and ending at rest (at x = 900 m). Through the first of that distance, its acceleration is +2.25 m/s2. Through the next of that distance, its acceleration is -0.7
A crate is sliding down a ramp that is inclined at an angle of 45.5° above the horizontal. The coefficient of kinetic friction between the crate and the ramp surface is 0.672. Find the acceleration of the moving crate.
How high a tree would a 79.0 kg person have to climb to increase his gravitational potential energy relative to the ground by that amount?
A submarine is 306 m horizontally out from the shore and 120 m beneath the surface of the water. If the beam just strikes the top of a building standing directly at the water's edge, find the height of the building.
A 747 airliner reaches its takeoff speed of 170 in 35.3 . What is the magnitude of its average acceleration?
At t=0, the block is moving in the positive direction of the axis, with a speed of 3.0 m/s. what are its (a) speed and (b) direction of travel at t=11 s?
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