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Q1. Batman throws a bat grenade at an angle of 44 degrees to the horizontal with a speed of 17.80 meters per second. How far does it travel?
Q2. A billionaire offers to give you (1) $5 billion if you will first count the amount in $1 bills or (2) a lump sum of $5000. (Suppose that you can count at an average rate of one bill per second, and be sure to allow for the fact that you will need about 10 hours a day for sleeping and eating. Your answer does not need to be limited to one significant figure.)
How long would it take you to count the amount in $1 bills?
Two spherical objects have a combined mass of 200. The gravitational attraction between them is 8.01×10-6 while their centers are 21.0 apart.
At one instant a bicyclist is 28 m due east of a park's flagpole, going due south with a speed of 8 m/s. after that, 11 s later, the cyclist is 65 m due north of flagpole, going due east with a speed of 10 m/s.
What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to the angular speed of 77.0 rev/min in 3.40 s.
A 5,000 kg satellite is orbiting the Earth in a circular path. The height of the satellite above the surface of the Earth is 800km. The velocity of the satellite is (Me = 5.98 x 10^24 kg, Re = 6.37 x 10^6 m, G = 6.67 x 10-11 N • m2/kg2)
Find out the precession period of the axis
What is tension in the wire
Ricardo walks 22.0 in a direction 50.0 west of north. Jane walks 20.0 in a direction 30.0 south of west. They after that stop and turn to face each other.
A 3.60 long, 420 steel beams extends horizontally from the point where it has been bolted to the framework of the new building under construction. A 72.0 construction worker stands at the far end of the beam. What is the magnitude of torque about the..
Two lightweight rods 24 {rm cm} in length are mounted perpendicular to an axle and at 180 ^circ to each other. At the end of each rod is a 480 {rm g} mass. The rods are spaced 42 {rm cm} apart along an axle. The axle rotates at 4.90 rad/s.
What was the absorbed dose in the carbon walls? The average mass stopping powers of graphite and CO2 for the photons are, respectively, 1.648 and 1.680 MeV cm^2/g.
A 44.20 cm diameter disk rotates with a constant angular acceleration of 2.84 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at t..
Visualize the one cubic centimeter as formed by stacking up identical cubes, with one copper atom at the center of each. Determine the volume of each cube.
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