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1.- a ball is hurled straight up at a speed of 15.0m/s, leaving the hand of the thrower 3.00 m above ground.
(a) compute the times and the ball's speed when it passes an observer sitting at a window in line with the trow 10.0 meters above the point of release.
(b) What is the total distance traveled by the ball just as it passes the window the second time?
A U-236 nucleus fissions directly into Xe-138 and Sr-98 without the emission of neutrons. What is the fraction of the total kinetic energy released is carried by the lighter fragment
A3.50kg object is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of24.0N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position.
A thyroid cancer patioent is given a dosage of 131I, What faction of the dosage will still be in the patient's thyroid
A passenger car traveling down a rough road bounces up and down at 1.2Hz with a maximum vertical acceleration of 0.25m/s2, What is the maximum speed of the oscillation
Suppose that the dipole moment associated with an iron atom of an iron bar is 2.7 x 10-23 J/T. Assume that all the atoms in the bar, What is the dipole moment of the bar
A 4.0 uF capacitor is initially uncharged and connnected in series with a 4.0 kQ reisitor. How long will it take for the capacitor to reach one fourth of this maximum charge
The 1.0 kg physics book is conected by a string to a 500g coffee cup. The book is given a push up the slope and released with a speed of 3.0 m/s. How far does the book slide
In a particular Millikan oil-drop apparatus, the plates are 2.25 apart. The oil used has a density of 0.845 , how many excess electrons did it contain
A rectangular block of wood, 10 cm*15 cm*40 cm, has a specific gravity of 0.6. What fraction of the block is submerged
An air spaced parallel plate capacitor has an initial charge of 0.05 uC after being connected to a 10 V battery. Calculate the work done in pulling the plates apart
A movable piston having a mass of 7kg and a cross-sectional area of 6 cm2 traps 0.2 mol of an ideal gas in a vertical cylinder. The piston slides without friction in the cylinder. The outside of the cylinder is kept at atmospheric pressure, 1.013×..
Find out the magnitude of the velocity of the heavier fragment relative to the ground just after explosion.
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