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Two kids are playing a game in which they try to hit a box on the floor with a marble fired from a spring loaded gun that is mounted on a table. The target box is horizontal distance D = 2.20 meter from the edge of the table. Bobby compressed the spring 1.10 centimeter, but the center of the marble falls 27.0 centimeter short of the center of the box. Find how far should Rhoda compress the spring to score a direct hit? Suppose that neither the spring nor the ball encounter friction in the gun.
The speed of light in a transparent medium (such as glass) is less than the speed of light in a vacuum. Is this a violation of the theory of relativity.
You are asked to design a cylindrical steel rod 55.0 long, with a circular cross section, What must the rods diameter be
A man pushes on a piano with mass 180 {rm kg} so that it slides at constant velocity down a ramp that is inclined at 20.0^circ above horizontal floor. Overlook any friction acting on the piano.
Planet Z is 1.00×104km in diameter. The free-fall acceleration on Planet Z is 10.0m/s2. What is the mass of Planet Z
A proton of mass mp and charge qp =e, deuteron of mass 2mp and charge qd =e, Find the velocities and derive the radii of the paths for deuteron and alpha particle in term of the mass and charge of proton
A wire of thickness d = 5 mm is tightly wound 200 times around a cylindrical core to form a solenoid. What is the the magnetic field on the axis of the solenoid
A 10 cm long thin glass rod is uniformly charged to +50 nC. A small plastic bead, charged to - 4.8 nC, is 4.2 cm from the center of the rod. What is the magnitude of the force of the bead.
The position of a particle is given in cm by x = (5) cos 5?t, where t is in seconds. Find the maximum acceleration of the particle
A projectile of mass 2.06 kg approaches a stationary target body at 7.70 m/s. What is the speed of the target body
A microscope has an eyepiece of focal length 2.00 cm and an objective of focal length 3.00 cm. How far from the eyepiece is the image formed by the objective
the radii of curvature of the surfaces of a thin converging meniscus lens are r1 12.0 cm and r2 28.0 cm. the index
a u-shaped tube is filled mostly with water but some vegetable oil has been added to both sides of the u tube. on the
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