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Name two types of fibers and give the main advantage of each. The advantages have to be different so that the two types of fibers differ from each other.
A cart of mass 250 g is placed on africtionless horizontal air track. evaluate the period at which it oscillates
A ray of light strikes a plane mirror at a 45° angle of incidence. The mirror is then rotated by 23° in the clockwise direction, while the incident ray is kept fixed. (a) Through what angle does the reflected ray rotate? (b) What is the answer to par..
A car is driving along a highway that goes over a hill. The top of the hill has a radius of curvature of 45 m. find the maximum safe speed for going over the hilltop
Two very long, parallel wires separated by a distance of 1.0 centimeter carry opposite currents of 8.0Amp. Obtain the magnetic field at the midpoint between the wires
A rod 10.0 cm long is uniformly charged and has a total charge of -21.0 µC. Determine the magnitude and direction of the electric field
What is the PV work that is done ON the system when 20J of PV work is done on the surroundings W(system).
The primary coil of a step-up transformer is connected across the terminals of a standard wall socket, and resistor 1 with aresistance R1 is connected across the secondary coil.The current in the resistor is then measured.
Suppose that 1.05 108 J of this energy flows directly into the surroundings (engine block and exhaust system) in the form of heat. If 6.0 105 J of work is required to make the car go one mile, expalin how many miles can the car travel on one ga..
The Mars rover was deployed on the surface of Mars in July 1997. At one point during its subsequent mission, How far was Mars from the from Earth at that time
To hoist himself into a tree, a 72.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch of the tree. determine the man's upward acceleration
question a proton has a velocity of 1.25 x 106 ms. it travels into a magnetic field that has a strength of 1.5 t. what
An electron is released from rest in a uniform electric field. Determine what is the magnitude of the electric field
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