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An arbitrary mass of 0.200 kg is connected to a light spring with force constant 5 N/m and is free to oscillate on a horizontal, frictionless surface. The mass is displaced 7 cm from equilibrium and released. Period = 1.26 sec. What is the maximum speed of the mass?
A sailboat is travelling east at 4.0 m/s. A sudden gust of wind gives the boat an acceleration a = (1.35 m/s2 30° north of east). What is the boat's speed 6.0 seconds later while the gust subsides.
A -6.00-µC charge is moving with a speed of 6.40 104 m/s parallel to a very long, straight wire. Find the magnitude and direction of the force on the charge
A 53.0 kg stunt pilot who has been diving her airplane vertically pulls out of the dive by changing her course to a circle in a vertical plane. What is the apparent weight of the pilot at the lowest point of the pullout
A 45.5-g golf ball is driven from the tee with an initial speed of 40.3 m/s, determine the kinetic energy of the ball at its highest point
An object with a density of 901.0 kg/m3 and a mass of 895.0 kg is thrown into the ocean. Find the volume that sticks out of the water
a crowbar is used to lift a weight. If a down ward force of 224 N is applied to the end of the bar, how much weight does the other end bear
The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.8 N. Suppose that only static friction supplies the centripetal force, & find the radius r of the tyre.
A 20.0 m long wire with a square cross-section of 2.0 mm x 2.0 mm is made of a resistive material. When a potential difference of 40V is placed across the length of the rod, a current of 2.0 A is produced. What is the value and units of the resistivi..
A top has a moment of inertia of 2.78 × 10^?4 kg·m^2 and is initially at rest. It is free to rotate about a vertical stationary axis. What is the angular velocity of the object
A dentist uses a mirror to examine a tooth that is 0.75 cm in front of the mirror. The image of the tooth is formed 11.0 cm behind the mirror. Determine the mirror's radius of curvature
In a region of vacuum containing a magnetic field of 9.00 T and an electric field of 9.00 V/m, calculate the energy density due to each field
At the top of Earth's atmosphere, sunlight has an average intensity of 1380W/m^2 .If the average distance from Earth to the Sun is 1.5*10^11m, at what rate does the Sun radiate energy?
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