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Suppose a high voltage DC generator produces a potential difference of 75. kV across an air gap distance of 1.25 cm. What is the maximum value of the electric field (in V/m)? What would be the phys
An object with a mass of 5g hangs from a cord around a pulley.? The length of the cord between point P and the pulley L=2.0m a) when the vibrator is set to a frequency of 150 Hz, a standing wave wit
He beaker has a mass 15 grams when it's empty, the beaker plus the liquid has a mass of 38 grams. The liquid has a volume of 10 ml, what is the density?
A 3.00 kg block starts from rest at the top of a 30 degree incline and slides 2.00 meters down the incline in 1.50 seconds.
Given the following vectors: A is 25lbs at an angle of 30 degrees clockwise from the +x-axis, and B is 42lbs at an angle of 50 degrees clockwise from the +y-axis.
A spring is hanging down from the ceiling, and an object of mass m is attached to the free end. The object is pulled down, thereby stretching the spring, and then released.
An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp.
A train is traveling down a straight track at 27 m/s when the engineer applies the brakes, resulting in an acceleration of -1.0 m/s2 as long as the train is in motion. How far does the train move du
To push a certain box across a level floor at constant velocity requires that a horizontal force be applied to the box. The magnitude of this force is half as great as the vertical force required to
A rubber ball falls on a floor from a height of 19.6 m. Calculate the velocity with which it strikes the ground. To what height will the ball rebound if it loses 25% of its energy on its striking t
This question relates directly to the Vorperian and Kent (2007) article (Vowel acoustic space development in children: A synthesis of acoustic and anatomic data)?
Each day the average family use 100kg of hot water to kill bacteria, the water going into the tank at 20°c must be heated t0 60°c calculate the energy needed to increase the temperature of 1
If the radius of a blood vessel is reduced by cholesterol deposits to 90% of its original value, flow will decrease. By what factor would the pressure difference along the vessel have to be increas
At the instant the traffic light turns green, a car that has been waiting at an intersection starts ahead with a constant acceleration of 3.20 metre per second squred.
Will the fixture work as designed? If not, should a material with a higher or lower dielectric constant should be used in constructing the capacitor?
A uniform rod of mass 2m is completely free to move and is initially at rest. A particle of mass m hits one of its ends elastically and at right angles to the rod. Describe the subsequent motion?
four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 6.65 cm. Each wire carries 18.7 A, and all the currents are out of the page. What i
How can you tell if there is a difference of potential between two points? URGENT!!!? B) IS WORK REQUIRED TO Move a charge along the surface of a charged conductor? Explain.
A jet cruising at 26400 feet descends 96 miles away from a jet cruising at 31680 feet which is 120 miles from logan Which of these two paths of descent is steeper?
Using momentum, Newton's first law of motion, and/ or newton's second law of motion; explain how a rocket is launched deep into the atmosphere?
It then expands adiabatically back to its original volume, and finally it is heated isochorically to its original pressure.Compute the minimum pressure.
A television antenna is on the roof of the building. from a pt. on the ground 36.0 feet from the building , the angle of elevation of the top and the bottom of the antenna are 51 degree celsiusand
An organ pipe is 0.155m long and closed at one end. The temperature of the air inside the pipe is 23 C. a) calculate the speed of sound waves in the pipe.
There are certain big questions that philosophers have been puzzling over for millennia. Amazingly, many people ask these same questions in daily life.
A magnetic current will be induced in the waire. B: the coil of wire will not be effected C: a magnetic will be produced without a north pole D: an electric current will be induced in the wire.