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A long, straight wire carries a current of 4.3 A. Determine how far from this wire is the magnetic field it generates equivalent to the Earth's magnetic field, which is around 5.0 x 10-5 T?
The vehicles slide a distance of 4.11 meters after impact. Determine how fast were the vehicles moving instantly after the impact? Determine how fast was the car moving that rear-ended the other car
A man drags a cart of mass 20.3 grams having a uniform horizontal force at constant speed of 31.3 cm/s beneath a hopper which is dropping cattle feed onto the cart at a rate of 17.5 kg/s. Determine
A rectangular block of pure silver measures 4cm x 4cm x 20cm. Find out the resistance between the opposite sides which are farthest apart:
Determine the normal force among the block and the horizontal surface? Find out the force of friction between the block and the horizontal surface?
Light is viewed to converge to a point after being reflected from the plane mirror. Were the incident rays parallel, converging, or diverging prior to striking the mirror? Describe a diagram to veri
A circular loop of wire having a diameter of 0.626 m is rotated in the uniform electric field to a position where the electric flux via the loop is a maximum. At this location, the electric flux is
At airport, a small tractor of mass 1235 kg pulls three baggage carts, all of mass 345 kg. The tractor accelerates at a rate of 1.82 m/s2. Find out the force which the tractor's engine should supply
The student lets go of the other mass and views that it takes 1.65 seconds for the mass to reach the floor. Determine the acceleration of the system and the second mass? Determine the tension in the
Determine what would be the wavelength of the electromagnetic wave having a frequency equivalent to the clock speed of a 3.2 Ghz computer? In what portion of the electromagnetic spectrum would such
An inductor of 7.00 with negligible resistance is joined across an ac source whose voltage amplitude is kept constant at 67.2, however whose frequency can be varied.
A bullet of 10 g is stopped in a block of wood of 5 kg. The speed of bullet-plus-wood combination instantly after the collision is 0.60 m/s. Determine the original speed of the bullet?
The resistance less inductor is joined across the ac source whose voltage amplitude is 25.0 and the angular frequency is 1000. Determine the current amplitude when the self-inductance of the inducto
Determine: i) the speed at which the bullet emerges from the block. ii) The mechanical energy lost in the collision.
Determine the lowest value of the coefficient of static friction between basket and merry-go-round which lets the basket to stay on the ride?
When a ball is on a hill 5 meters high and it weighs (mass) 2 kg -- it rolls down the hill and the velocity is 9.5 m/s squared -- Evaluate the amount of energy lost due to friction.
Now, the other resistor of resistance R is added to the circuit, in series with the rest of the resistors. Determine the new current in the circuit.
A shunt-joined a DC motor consists of zero rotational losses and R A = 0. Suppose that R A and R adj is directly proportion to field current. For VT= 200 V and P out = 2 hp. The speed is 1200 rpm. D
When a ball is on the hill 5 meters high and it weighs (mass) 2 kg -- it rolls down the hill and the velocity is 9.5 m/s squared -- compute the amount of energy lost to friction.
The security alarm of a parked car goes off and generates a frequency of 960 Hz. The speed of sound is 343m/s. As you drive toward this parked car, pass it, and drive away, you listen to the frequen
Determine how much work the up escalator does on you when you ride it from the lower level to the upper level.
Supposing that the wave would encompass an amplitude of the six story building with 4m per story, v) write down the equation of the wave (as a cosine wave).
An elevator of 612 kg begins from rest and moves upward for 2.90 s with constant acceleration till it reaches the cruising speed, 1.65 m/s. (i) Determine the average power of the elevator motor thro
A block having mass 2.50 kg is pushed 2.80 m all along a frictionless horizontal table by a constant 12.0 N force directed 25.0° beneath the horizontal. (i) Find out the work done by the exerted
The box consists of a mass of 21.0 kg, and the coefficient of kinetic friction among box and floor is 0.300. (i) Determine the acceleration of the box.