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Suppose the ball leaves the pitcher's hand by velocity of 15 m/sec directed horizontally. Take the point of throw to be 2m above ground. Where does the ball hit the ground?
A copper beaker of mass 0.20 kg contains 0.10 kg of water at 20.0 C. A block of silver of mass 100 g at 90.0 C is added to the beaker of water. What is the heat lost by the silver
Froima plotted graph a student determined that the best fit line had a slope of 1.227m/s^2 and a y-interecept of 0.32m/s. Determine the uncertainty for the slop of the line
Liquid helium is stored at its boiling point temperature of 4.2K in a spherical container (r=0.30 meter). The container is a perfect blackbody radiator. Calculate what mass of liquid helium boils away through a venting valve in 1 hour
A beam of hydrogen molecules (H2) is directed toward a wall, at an angle of 38° with the normal to the wall. What is the beam's pressure on the wall
What is the magnitude of vertical component of its velocity as it strikes the ground.
A 440-turn solenoid is 30 cm long and 1.1 cm in diameter and carries 57 mA. How much magnetic energy does it contain
A string with linear density 2g/m is stretched along the positive x-axis with tension 20 N. One end of the string, at x = 0, is tied to a hook that oscillates up and down at a frequency of 100 Hz with a maximum displacement of 1.0 mm. At t = 0s, t..
You pull downward with a force of 32 N} on a rope that passes over a disk-shaped pulley of mass 1.2 kg and radius 0.07 5m. Find the linear acceleration of the 0.61 kg mass.
A 53.5 kg pole vaulter running at 11.4 m/s vaults over the bar. Her speed when she is over the bar is 1.14 m/s. determine her altitude as she crosses the bar
A mass m moves along the x-axis subject to an attractive force given by 17β2mx/2 and retarding force given by 3βmv, where x is the distance from the origin and β is a constant. Find what is the max amplitude
Two converging lenses which have focal lengths of +3.0 cm and +2.0 cm are 10 cm away from each other. find the height of the image formed by the seconds lens
A glass fiber of index 1.50 is used to transmit light but is submerged in water of index 1.33. What is the critical angle for light to stay inside the optical fiber
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