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As your bus rounds a flat curve at constant speed, a package with mass 0.300 kg , suspended from the luggage compartment of the bus by a string 50.0 cm long, is found to hang at rest relative to the bus, with the string making an angle of 30.0 degrees with the vertical. In this position, the package is 55.0 m from the center of curvature of the curve.
Styrofoam has a density of 300 kg/m^3 . What is the maximum mass that can hang without sinking from a 20.0cm -diameter Styrofoam sphere in water? Assume the volume of the mass is negligible compared to that of the sphere.
A 5000 W electric heater is used for 32 hours. Calculate the energy consumed in this period. The plates are seperated by a distance of .100 mm. what is the current drawn by the heater
A child is twirling a 0.0215-kg ball on a string in a horizontal circle whose radius is 0.143 m. The ball travels once around the circle in 0.586 s. Determine the centripetal force acting on the ball
A ball is being thrown towards a wall with 25.0 m/s in a 40 degree angle. The distance to the wall is 22.0m, How high will the ball hit the wall
A proton with a speed of 3.23 104 m/s is moving from infinity directly toward a second proton. Assuming that the second proton is fixed in place, find the position where the moving proton stops momentarily before turning around.
Consider a collision between an alpha particle (mass 4 amu) and an initially stationary oxygen nucleus (mass 16 amu). What was the initial speed of the alpha particle
question1a backpack full of books weighing 53.0 rests on a table in a physics laboratory classroom. a spring with a
A mass (10 kg) rests on a surface (ustatic=.6) connected by a cord to a hanging mass of 2 kg. What is the acceleration of the heavier mass
A ladybug is sitting at the center of a turntable. The turntable is rotating on a frictionless bearings and it rotates without assistance from a motor. As the ladybug walks to the edge of the turntable, what happens to combined angular momentum of..
A 1.6-m wire is wound into a coil with a radius of 4.07 cm. If this coil is rotated at 105 rpm in a 0.070-T magnetic field, what is its maximum emf
How does the frequency of harmonic motion change if we take a spring of seven times the modulus, increases or decreases by a factor of how much
while the other terminal of the ammeter is connected to the other wire, ammeter shows that the current through the wire is 1 A. You then disconnect everything and travel to the other end of the telephone line, where you repeat the process and find ..
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