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The drum of the photocopying machine in the problem above has a length of 48 cm and a diameter of 9 cm. What is the total charge on the drum
A -6.00 µC charge is moving with a speed of 8.20 104 m/s parallel to a very long, straight wire, Find the magnitude and direction of the force on the charge.
6 kg of a substance undergoes a process from 1.00 MPa, 0.50 m^3 to 500 kPa, Find the work in kJ for the path given below and Find the heat transfer for the process in Btu. PV^1.6 = constant
Space vehicles traveling through Earth's radiation belts can intercept a significant number of electrons, Find the resulting surface charge density
A force of 13.3 N pulls horizontally on a 0.9 kg block that slides on a rough, horizontal surface, What is the acceleration of the blocks and What is the tension in the string
When he accelerates from a stoplight, the tassel deflects backward toward the rear of the car hanging at an angle of 6.30° relative to the vertical. Find the tension in the string holding the ta
Find the coefficient of kinetic friction between a 4.2 kg block and the horizontal surface on which it rests if an 92 N/m spring must be stretched by 1.8 cm to pull the block with constant speed
A light plane attains an airspeed of 480 km/h. The pilot sets out for a destination 830 km due north but discovers that the plane must be headed 24.0° east of due north to fly there directly
A bullet with mass 4.85 g is fired horizontally into a 2.040-kg block attached to a horizontal spring, Find the initial speed of the bullet-block system
A parallel plate capacitor is made with rectangular 50.0cm x 42.0cm plates seperated by a vacuum gap, find the capacitance between the two plates without knowing either the charge (Q) or the distance
According to the universal law of gravitation the gravitational force on a small mass at the surface of the Earth is proportional to the product of the mass and the mass of the Earth and inversely p
A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 56.0 m/s and returns the shot with the ball traveling horizontally at 42.0 m/s, What work does the racket do on th
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8..00 m/s at an angle of 20.0 below the horizontal, Find the height from which the ball was thrown
A 211-? and a 221-? resistor are connected in series across an unspecified power supply, what is the exact current (in A) through the 221-? resistor
A crane at a construction site lifts a concrete block with a mass of 440 kg from the ground to the top of a building with a height of 15.0 m
A duck has a mass of 2.1 kg. As the duck paddles, a force of 0.09 N acts on it in a direction due east, Find the magnitude and direction (relative to due east) of the displacement that the duck under
A highly charged piece of metal (with uniform potential throughout) tends to spark at places where the radius of curvature is small, For that amount of charge, what is the potential of the sphere rel
A 43.0-kg child swings in a swing supported by two chains, each 2.92 m long. The tension in each chain at the lowest point is 346 N. Find the child's speed at the lowest point
The spring balance is reasonably accurate for determining the load mass, Explain how to use the Workin = Workout principle to verify the mass of the spring balance
When point charges q1 = +1.7 ?C and q2 = +8.7 ?C are brought near each other, each experiences a repulsive force of magnitude 0.30 N
Four point charges have the same magnitude of 2.3 × 10-12 C and are fixed to the corners of a square that is 3.8 cm on a side, Determine the magnitude of the net electric field that exists at th
A proton and an electron are moving due east in a constant electric field that also points due east, Determine the magnitude of the acceleration of the proton and the electron
At a distance r1 from a point charge, the magnitude of the electric field created by the charge is 345 N/C. At a distance r2 from the charge, the field has a magnitude of 120 N/C
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed, Determine the mag
Two tiny conducting spheres are identical and carry charges of -16.6C and +56.3C, Determine the magnitude of the force that each sphere now experiences