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An electron travel at 2.0x10^7m/s in a plane perpendicular to a uniform 0.010T magnetic field. Describe its path quantitatively. (Mass of an electrons is 9.1x10^-31 kg, the charge in an electron is 1.6x 10^-19C)
Determine the electrical force of attraction between two balloons that are charged with the opposite type of charge but the same quantity of charge. The charge on the balloons is 6.0 x 10-7 C and they are separated by a distance of 0.50 m.
A rock is thrown straight down with initial velocity of 14, 5 m/s from a cliff .what is the rocks displacement after 2, 0 s
A rock is thrown straight down with initial velocity of 14, 5 m/s from a cliff . what is the rocks displacement after 2,0 s
The resistance ๐ ๐ of a particular resistance thermometer at a Celsius temperature ๐ as measured by a constant-volume gas thermometer is given by
๐ ๐ = 50.00 + 0.1700๐ + 3.00 ร 10โ4๐2.
Calculate the temperature as measured on the scale of the resistance thermometer which corresponds to a temperature of 60ยฐ๐ถ on the gas thermometer.
Two point charges are placed as follows: charge q1 = -1.50 nC is at y = +6.00 m and charge q2 = +3.20 nC is at the origin. What is the total force (magnitude and direction) exerted by these two charges on a negative point charge q3 = -5.00 nC located at (2.00 m, -4.00 m)?
A parallel-plate air capacitor is to store charge of magnitude 240.0 pC on each plate when the
potential difference between the plates is 42.0 V. (a) If the area of each plate is 6.80 cm2
, what is
the separation between the plates? (b) If the separation between the two plates is double the value
calculated in part (a), what potential difference is required for the capacitor to store charge of
magnitude 240.0 pC on each plate?
The plates of a parallel-plate capacitor are 2.50 mm apart, and each carries a charge of
magnitude 80.0 nC. The plates are in vacuum. The electric field between the plates has a magnitude
of 4.00 X 106 V/m(a) What is the potential difference between the plates? (b) What is the area of
each plate? (c) What is the capacitance?
A thin spherical shell with radius R1 = 3.00 cm is concentric with a larger thin spherical shell
with radius R2 = 5.00 cm. Both shells are made of insulating material. The smaller shell has
charge q1 = +6.00 nC distributed uniformly over its surface, and the larger shell has charge
q2 = - 9.00 nC distributed uniformly over its surface. Take the electric potential to be zero at an
infinite distance from both shells. (a) What is the electric potential due to the two shells at the
following distance from their common center: (i) r = 0; (ii) r = 4.00 cm ; (iii) r = 6.00 cm? (b) What
is the magnitude of the potential difference between the surfaces of the two shells? Which shell is
at higher potential: the inner shell or the outer shell?
A small particle has charge โ 5.00 ยตC and mass 2.00 X 10-4 kg. It moves from point A, where
the electric potential is VA = +2.00 V, to point B, where the electric potential is VB = +8.00 V. The
electric force is the only force acting on the particle. The particle has speed 5.00 m/s at point A.
What is its speed at point B? Is it moving faster or slower at B than at A? Explain.
