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In a common but dangerous prank, a chair is pulled away as a man is moving to sit on it, causing the victim to land hard on the floor. Assume the victim falls by .5 meter the mass that moves downward is 70 kilogram and the collision on the floor last .082 second. Find the magnitudes of the
a) impulse and
b) average force acting on the victim from the floor during the collision.
What is the maximum angle of incidence for a light ray within the water to strike the glass wall and still emerge to the outside air
A 15.0 kilogram small block is pushed against a vertical wall with a horizontal force. find what minimum horizontal force must be applied
q1. a 2.00 kg metal block slides on a rough horizontal surface inside an insulated pipe. after sliding a distance of
A 430 gram rock is whirled on the end of a string 45 cm long which will break under a tension of 22 N. What is the highest speed the rock can reach before the string breaks? (Neglect gravity.)
An 830 kilogram race vehicle can drive around an unbanked turn at a max speed of 58 m/s without slipping. The turn has a radius of curvature 160 meter. Evaluate the maximum speed if no down force acted on car
Radiation from the nearby star Alpha Centauri is observed to be reduced in wavelength (after correction for Earth's orbital motion) by a factor of 0.999933. What is the recession velocity (direction) of Alpha Centauri relative to the Sun
What is the greatest possible distance from the wall
a man is on a roof of height 50m and hurls a water balloon with a velocity of 15ms at an angle of 30 above the
The sun radiates electromagnetic energy at the rate of 3.91×1026 W. What is the change in the sun's mass during one second? Express the answer as a positive mass
A magnifying glass of diameter 10.5 cm focuses sunlight into a spot of diameter 0.550 cm. What is the energy flux in the local spot
You drop 500 g of ice at -35oC into a bucket of water (1200 g) at 45oC. Find the final temperature of the system
In an R-L-C series circuit the magnitude of the phase angle is 52.9? with the source voltage lagging the current. The reactance of the capacitor is 360? , Find the reactance of the inductor
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