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Q. An 18 g rifle bullet travelling 210 m/s buries itself in a 3.6 kg pendulum hanging on a 2.7 m long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of pendulum's displacement.
Q. A convex mirror has a focal length of -11 cm. A lightbulb with a diameter of 6.00 cm is placed 60.00cm in front of the mirror. Locate the image of the lightbulb.
find out the magnitude of force exerted on the lower end of the boom by the hinge.
If the ropes supporting the rings are attached to ceiling directly above, what is the tension in each rope.
Find maximum height reached by the diver using the equation of motion.
A container of hot water at 80 degrees cools to 79 degrees in 15 seconds while it is placed in a room that is t 20 degrees. Use newton's law of cooling to estimate the time it will take for the container to cool from 50 degrees to 49 degrees.
If the coefficient of kinetic friction between the box and the roof is 0.55, with what speed must you push the box to have it gently come to rest right at the edge of the roof.
A proton is initially at rest at a point where the potential is 507V. Sometime later the proton is at a point where the potential is 187V. If no force other than the electrostatic force acts on the proton, what is its final kinetic energy.
What is the ratio of the cardinals magnitude. One mole of tungsten (6 1023 atoms) has a mass of 184 grams, and its density is 19.3 grams per cubic centimeter. You have a long thin bar of tungsten, 2.3 m long, with a square cross section, 0.15 cm on..
A 63 resistor is connected in parallel with a 115 resistor. This parallel group is connected in series with a 19 resistor. The total combination is connected across a 15 V battery.
assume the roller coaster (h1 = 34 m, h2 = 10 m, h3 = 20) passes point A with a speed of 2.00 m/s. If the average force of friction is equal to one sixth of its weight, with what speed will it reach point B? The distance traveled is 45m.
A wooden block weighing 7 N is at rest on top of a wooden desk. The coefficient of static friction between the block and the desk is 0.41. Find out the minimum horizontal force required to move the block if the following occurs.
Iodine-131 has a half-life of 8 days. A 2-gram sample of at first pure iodine-131 is stored for 32 days. How various grams of iodine-131 remain in the sample afterwards.
A particle has initial velocity 5 m/s due east and acceleration 2 m/s^2 due west. Find the distance traveled during 3rd second of the motion.
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