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How do you measured the constant velocity of magnet in the copper tube and why the magnetet droppe slowly but falls freely in the plastic tube.
A beam of unpolarized light shines on a stack of five ideal polarizers, Find the angle between the axes of each pair of adjacent polarizers
Three charged particles are placed at each of three corner of an equilateral triangle whose sides are of length 2.5 c.m. What is the net electric force acting on particle
Steam locomotives have an eff of 17% and operate with hot steam temp of 425C. A.) what is the cold temp B.) what is the max eff if the cold temp 150C
A 3.25 g bullet picks up an electric charge of 1.55 µC as it travels down the barrel of a rifle. find the magnitude of the magnetic force on the bullet
A block of mass m = 2.0 kg attached to a spring with spring constant k on a frictionless surface. The block is pushed to the left to position x = -0.5 m and, at time t = 0, it is released from rest and starts oscillating with a period of 2.0 s.
Calculate the frequency of the tone perceived by the person if he is moving away from the speaker with a speed of 48 m/s
A 285-kg stunt boat is driven on the surface of a lake at aconstant speed of 13.5 m/s toward a ramp, which is angled at25.0° above the horizontal. The coefficient of friction betweenthe boat bottom and the ramp’s surface is 0.150, and theraised end o..
A small immersion heater is rated at 352 W. Estimate how long it will take to heat a cup of soup (suppose this is 250 mL of water) from 20°C to 50°C.
An 8 lb weight stretches a spring 4ft, the system resides in amedium offering a resistance to the motion equal to 1.5 times theinstantaneous velocity, if the weight is released at a position 2ftabove its equilibrium position with downward velocity of..
A resistance R and a 4.7-H inductance are in series across a 60-Hz ac voltage. The voltage across the resistor is 22 V, What is the ac input voltage
A given copper wire has a resistance of 5.11 ? at 20.0°C while a tungsten wire of the same diameter has a resistance of 4.61 ? at 20.0°C
a horizontal rifle is fired at a bulls -eye. the muzzle speed of the bullet is 670ms the gun is pointed directly at the
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