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A block of mass M = 7.166 kg is pulled along ahorizontal frictionless surface by a rope of mass m =0.470 kg, as shown in Fig. 5-62. A horizontal force = 36.7 N is applied to one end of the rope. Assume that therope only sags a negligible amount. Find (a) the acceleration ofrope and block, (b) the force on the block from the rope, and (c)the tension in the rope at its midpoint.
the microwaves in a certain microwave oven have a wavelength of 12.2cm.a how wide must this oven be so that it will
A train is en route from Chicago to New York at 110km/h when the engineer spots a cow on the track. How far was the train from the cow when the engineer first applied the brakes
The Stanford Linear Accelerator (SLAC) is an electron accelator that provides an oscillating \radio-frequency" (RF) electric field in the form of a wave that stays in synchronism with the electrons being accelerated.
In lectures and in tutorials, we discussed the confinement of an electron (or other particle) to a box of infinite depth, running from x = 0 to x = a. If we, instead, define this 1-D region of confinement as running from -(a/2) to (a/2)
place the metals in order of least to greatest weight for a 10cm long structural part which must be able to support a
When cars are equipped with flexible bumpers, they will bounce off each other during low-speed collisions, thus causing less damage. What was the speed of the lighter car just after the collision
At room temperature, identical gas cylinders contain 10 moles of nitrogen gas and argon gas respectively. determine the ratio of energies stored in the two systems. Assume ideal gas behavior.
question a ball is thrown upward from a platform 4.0 m high with a speed of 23 ms at an angle of 37o from the
what is the direction of the electric field along the positive z semi-axis vertical if the field is created bya a
three charged particles are fixed to an x axis particle 1 of charge q1 2.1e-8 c is at position x20 cm and particle 2
a 1.0-cm-tall object is 20cm in front of a converging lens that has a 10cm focal length. use ray tracing to find the
Calculate the force on a 1 meter long length of wire carrying a 5 amp current in a magnetic field of .75 teslas that act perpendicular to the wire. determine the change in the acting force on the wire
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