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A 81 g bungee cord has an equilibrium length of 1.20 m. The cord is stretched to a length of 1.80 m, then vibrated at 27 Hz. This produces a standing wave with two antinodes.
This question requires three answers. Three resistors are connected in parallel with a 9.0 V battery. What is the voltage drop across R2
A cylindrical resistor of radius 4.8 mm and length 2.0cm is made of material that has a resistivity of3.50×10-5 Ω m. What is the current density when the energy dissipation rate inthe resistor is 1.0 W
A 3.0 kg block slides down a plane inclined200 to the horizontal with a coefficent of kinetic frictionbetween the block and the pane of 0.275. What would the net work be the net work done
question1consider a thin rod of mass 1.4 kg length 2.7 m and uniform density. the rod is pivoted at one end on a
A space station shaped like a giant wheel has a radius of 114m and, when empty, a moment of inertia of 5.84E+8kgm^2. A crew of 163 are living on the rim, and the station's rotation causes the crew to experience an acceleration of 1.00g. 0 When 134..
A 28.4kg beam is attached to a wall with a hinge and its far end is supported by a cable. what is the horizontal component of the force exerted by the hinge on the beam
(a) Calculate the number of gas molecules per cubic centimeter at this pressure. (b) What is the mean free path of the gas molecules if the molecular diameter is 2.12 x 10-8 cm.
A police car is traveling east at 40.0 m/s along a straight road,overtaking a car ahead of it moving east at 30.0 m/s. What is thewavelength behind the police car in meters
Four point charges have the same magnitude of 2.6 x10-12 C and are fixed to the corners of a squarethat is 6.0 cm on a side. Three of the charges are positive and oneis negative. Determine the magnitude of the net electric field that exists at the..
A tiny sphere of mass 7.80 mg and charge -2.80 nC is initially at a distance of 1.74 μm from a fixed charge of +8.05 nC. If the 7.80-mg sphere is released from rest, find its kinetic energy when it is 0.500 μm from the fixed charge.
Assuming that the uncertainties on the masses and velocities are M= 0.1 kg and V = 0.01 m/s, calculate the uncertainty in the momentum and kinetic energy for the second trial (bottom row).
An object is initially placed on the optical axis 22.6 cm to the left of a convex lens that has a focal length of 13.1 cm. what is the new image distance
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