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A person wants to find the gravity on another planet. There is a 1kg mass hanging from a thin wire with a length of 5m. By plucking the wire they can tell that the resulting wave takes .5s to travel the length. The wire has a mass of 100g. What is the gravity?
Four identical charges (+4.0 µCeach) are brought from infinity and fixed to a straight line. The charges are located 0.20 m apart. Determine the electric potential energy of this group.
For a travelling wave in a string under trnsion, describe the kinds of energy present as the waves moves during the string. Also explain the variations in the energy density present in the travelling wave for a one wavelength amount of the travelling..
Consider a simple pendulum of length l and mass m placed in a rail-road cart that has constant acceleration a in the positive x-direction. Obtain Hamilton's canonical equations of motion for this pendulum.
A 11.0kg box slides 4.0m down a frictionless30 degree incline, then collides with a spring whose springconstant is 180N/m. What is the maximum compression of the spring inmeters?
A bullet with mass m = 5.21 g is moving horizontally at v = 434 m/s when it strikes a block of hardned steel with mass M = 14,8 kg (initially at rest). What is the impulse (kg m/s) exerted on the block
A block of ice of mass 100 g and at 00 C is dropped into 500 g of water at 800 C in a Styrofoam cup. describe the process of each heat loss or gain
an air-filled parallel plate capacitor with a plate spacing of 1.20 cm has a capacitance of 4.20 uf. the plate spacing
A generating station is producing 1.90 106 W of power that is to be sent to a small town located 5.0 km away. Find the power used to heat the wires if the power is transmitted at 1050 V
A periscope for a submarine uses two totally reflection 45°-45°-90° prisms with total internal reflection on the side adjacent to the 45° angles. It springs a leak, and the bottom prism is covered with water. Explain why the periscope no long works. ..
A 12.6 µC particle with a mass of 2.80 × 10-5 kg moves perpendicular to a 1.02T magnetic field in a circular path of radius 22.6m. How fast is the particle moving in meters per second
Research suggests that the electric fields in some thunderstorm clouds can be on the order of 10 kN/C. Compute the magnitude of the electric force acting on a particle with two excess electrons in the presence of a 10.0-kN/C field.
A civil engineer wishes to plan a curved exit ramp for a highway in a way that a car will not have to rely on friction to round the curve without skidding. In the other words, a car moving at the designated speed can negotiate the curve even while th..
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