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A man has a mass of 80kg on the Earth's surface.
How far above the surface of the earth would he have to go to "lose" 11% of his body weight?
the shear modulus of steel is 8.1x10^10N/m^2. a steel nail of radius 7.5x10^-4m projects 0.040m horizontally outward from thw wall. what is the vertical deflection of the other end of the nail
what is meant by 'net charge a. the total amount of positive charge of an object b. the total amount of negative charge on an object c. the total amount of neutral charge on an object d. A minus B
A 29 g rifle bullet travelling 270 m/s buries itself in a 3.50 kg pendulum hanging on a 2.6 m long string, which makes pendulum swing upward in an arc. Find out the horizontal component of the pendulum's displacement.
A 34.0kg crate is initially moving with a velocity that has magnitude 3.70m/s in a direction 37.0 %u2218west of north. How much work must be done on the crate
A bullet with mass 5.44 g is fired horizontally into a 2.103-kg block attached to a horizontal spring. Find the initial speed of the bullet-block system
An electron microscope is designed to resolve objects as small as 0.32 nm. What energy electrons must be used in this instrument
A heat pump uses 200 J of work to output 300 J of heat into a heat reservoir at 200 K. What is the coefficient of performance for the heat pump
You walk for 6.44 km with at a constant velocity of 2.60 m/s due west, turn around, and then walk with an average velocity of 0.405 m/s due east, During the trip, how far east did you walk
A particle moves from an initial position with coordinates x = -2.0 m, y = +3.0 m, What is the magnitude of the average velocity for this displacement
A piece of cheese with a mass of 1.30kg is placed on a vertical spring of negligible mass and a force constant k= 1600 N/m that is compressed by a distance of 16.2cm. how high does the cheese rise from this initial position
A beaker of mass 325 g is sitting on a table. The beaker is filled with 210 g of water. The beaker and water are initially in thermal equilibrium at 22 ?C, What is the specific heat of the beaker
600 nm light is shined on a single slit which is 0.1mm wide, What is the width of the central maximum
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