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If the radius of the equipotential surface of a point charge is 23.0m and is at a potential of +1.30kV (compared to zero at infinity), what are the magnitude and sign of the point charge?
Two blocks are in contact on a frictionless table. A horizontal force F is applied to M2. If M1 = 1.57kg, M2 = 3.26kg, and F = 5.95N, find the size of the contact force between the two blocks.
What is the capacitance of capacitor B? Please note that for water, the latent heat of fusion is Lf = 33.5 x 104 J/kg, and the latent heat of vaporization is Lv = 22.6 x 105 J/kg
A compact disc spins at 2.2 revolutions per second. An ant is walking on the CD and finds that it just begins to slide off the CD when it reaches a point 2.9 cm from the CD's center. (a) What is the
A particle moves along the x axis. It is initially at the position 0.180 m, moving with velocity 0.100 m/s and acceleration -0.300 m/s2. Suppose it moves with constant acceleration for 4.30 s. (a)
(a) The potential on the outer surface of the membrane is +75.9 mV greater than that on the inside surface. How much charge resides on the outer surface? (b) If the charge in part (a) is due to K+ i
A bicycle wheel of radius 0.30 m is spinning at a rate of 60 revolutions per minute. What is the centripetal acceleration of a point that is 0.13 m from the outer edge of the wheel?
The potential difference between any two successive surfaces is 1.05 x 103 V. Starting at a distance of 1.85 m and moving radially outward, how many of the additional equipotential surfaces are cross
Stan accelerates from a standing start at 2 m/s2 and one second later Kathy accelerates from a standing start at the same position at 4 m/s2. (a) How long does it take Kathy to catch Stan? (b) What
A 16.0-N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface and the block are 0.880 and 0.640, respectively.
A 2.1mm -diameter glass bead is positively charged. The potential difference between a point 2.5mm from the bead and a point 4.5mm from the bead is 500 V. What is the charge on the bead?
A marbale rolls from rest down a ramp with constant acceleration. After half a second it has traveled 0.80 m. How far has it traveled after three seconds?
A planar slab of thickness of 5.00 cm has a uniform volume charge density of 5.20×10^-2 C/ m^3. Find the magnitude of the electric field at all points in space both inside and outside the slab
Charge is distributed uniformly throughout the volume of an infinitely long cylinder of radius R = 4.00×10^-2 m. The charge density is 5.00×10^-2 C/ m^3. What is the electric field at r
Discuss the criterion one would use to determine how the charges are distributed on the inner and outer surface of the shells. What is the charge on the outer surface of the outer shell?
The wavelength of a light wave is 700nm in air; this light appears red. If this wave enters a pool of water, its wavelength becomes lamda-air/n= 530nm. If you were swimming underwater, the light wou
The 3 microcoulomb charge is removed. There is only a -4 microcoulomb charge at the coordinates (-2,5)mm. What is the Electric field vector in polar coordinates at the origin?
A skateboarder starts up a 1.0--high, 30 ramp at a speed of 5.1 . The skateboard wheels roll without friction. How far from the end of the ramp does the skateboarder touch down?
A car is initially moving at 60 m/s and must stop in 100 m. What minimum constant acceleration must the car have?
The other bullet has an unknown mass and a speed of 601 m/s. The bullets collide at the center and mash into a stationary lump. What is the unknown mass?
A mine car (mass = 474 kg) rolls at a speed of 0.368 m/s on a horizontal track, as the drawing shows. A 103-kg chunk of coal has a speed of 0.851 m/s when it leaves the chute. Determine the velocity
Two balls 14 cm in diameter are placed 200 m apart on a frictionless horizontal plane at 50º N (on the rotating Earth). If the balls are suddenly propelled directly at each other with equal (co
Johnny is running home from school to watch his favorite soap opera, "As the Stomach Turns". He runs 6 blocks east to a convenience store for some Redbull and chips, then 8 blocks north to his home.
A boat has a mass of 6020 kg. Its engines generate a drive force of 3350 N due west, while the wind exerts a force of 630 N due east and the water exerts a resistive force of 1100 N due east. Take w
A singly charged ion of unknown mass moves in a circle of radius 14.5 cm in a magnetic field of 1.40 T. The ion was accelerated through a potential difference of 7.49 kV before it entered the magne