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Determine the half-angle of the wedge and the ratios of stagnation pressure and stagnation temperature across the wave.
When the resistors are connected in parallel to the battery, the total current from the battery is 9.66 A. Determine the two resistances.
a.) Find the flare's maximum height if it is fired on the level salt flats of Utah.
A charge of 2.95 µC is uniformly distributed on a ring of radius 8.5 cm. Find the electric field strength on the axis at the following locations.
Calculate the magnetic force on one of these poles, 6.09 m long, when it transmits an upward current of 2.16 x 104 A during a lightning discharge.
A singly charged 7Li ion has a mass of 1.16 10-26 kg. It is accelerated through a potential difference of 504 V and subsequently enters a uniform magnetic field of magnitude 0.398 T perpendicular to
A box full of books rests on a wooden floor. The normal force the floor exerts on the box is 235 N. (a) You push horizontally on the box with a force of 124 N, but it refuses to budge. What can you
Which describes the electric potential and the electric field at a point due to a negatively charged particle?
The electric field midway between two equal but opposite point charges is 385N/C , and the distance between the charges is 26.2cm. What is the magnitude of the charge on each?
Two large, parallel, conducting plates are 12 cm apart and have charges of equal magnitude and opposite sign on their facing surfaces.
An electron is projected from one surface directly toward the second. What is the initial speed of the electron if it stops just at the second surface?
An electrostatic force of 4.4 x 10-15 N acts on an electron placed anywhere between the two plates. (Neglect fringing.) aWhat is the potential difference in volts between the plates?
A 14.0kg bucket is lowered vertically by a rope in which there is 169 N of tension at a given instant. What is the acceleration of the bucket?
A = 1900 block is attached to the tensioning pulley's cart, via a rope and pulley, and is suspended in a deep hole. What is the tension in the cable car's cable?
A gas cylinder holds 0.250mol of O2 at 180 C and a pressure of 3.10 atm. The gas expands adiabatically until the volume is doubled. What is final pressure? What is final temperature?
A proton accelerates from rest in a uniform electric field of 624 N/C. At some later time, its speed is 1.04 x 106 m/s. How long does it take the proton to reach this speed?
A proton accelerates from rest in a uniform electric field of 624 N/C. At some later time, its speed is 1.04 106 m/s. (a) Find the magnitude of the acceleration of the proton.
(a) What is the work done by the field on the electron? (b) What is the change in potential energy associated with the electron? (c) What is the velocity of the electron? magnitude m/s direction
Write an expression for the magnitude of the horizontal component of force that the ground exerts on the teenager's foot, Fground.
A soccer player kicks a rock horizontally off a 41.3 m high cliff into a pool of water. If the player hears the sound of the splash 3.10 s later, what was the initial speed given to the rock? Assume
In the Bohr model of the hydrogen atom, an electron in the 4th excited state moves at a speed of 1.37 105 m/s in a circular path having a radius of 8.46 x 10-10 m. What is the effective current asso
A 46.0-g Super Ball traveling at 30.0 m/s bounces off a brick wall and rebounds at 21.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.30 ms, what is the