Anthea rubs two latex balloons against her hair, causing the balloons to become charged negatively with 2.0 × 10-6 C. She holds the balloons distance of 0.70 m apart. What is the electric force between the two balloons? 3.7*10^4 N 8*10^-12 N 5*10^-2 N O 7.3*10^-2 N

Two positive charges are 2 cm apart. One has a charge of 10 µC the other 4 µC. What is the magnitude of the force on each of them from the other? The coulomb constant is 9 x 10° kgm3/s²c2. 900 N 150 N 18 N 80 N

An alpha particle (charge of 2e) is sent at high speed toward a gold nucleus (charge 79e). What is the electric force acting on the alpha particle when it is 2.0 x 10-¹4 m away from the gold nucleus? O 14 N O 73 N O 21 N O 39 N O 91 N

Two small spheres, each with mass m = 12.0 g and charge q, are suspended from a point by threads %3D of length L = 0.30 m. What is the charge on each sphere if the string makes an angle of 15 degrees with the vertical when it's in electrostatic equilibrium? 145 nC 895 nC 99.5 nC 400 nC degrees

You hold a ruler that has a charge on its tip 6.00 cm above a small piece of tissue paper to see if it can be picked up. The ruler has -14.0 µC of charge. The tissue has 1.00 g of mass. What is the minimum charge required to pick up the tissue paper? μC

What is Fx on the charge at x = 16.00 cm if q = 2.650 C? Other charges are at 6000 cm and 2200 cm. Positive is correct. 8.988 109 Nm2/C2 is Coulomb constant. Fx || +0 3.506 Wrong +q 10.00-29 20.00+qx (cm)

Two pith balls, each of mass m = 0.2 × 10−3 kg are suspended from the same point by silk threads each 0.4 m long. An equal charge q is given to each of the pith balls, which causes them to separate by a distance d until the threads are at an angle of 40 degrees to each other. Calculate the magnitude of the charge on each ball.

Four identical metallic objects carry the following charges: +1.23, +6.89, -4.44, and -9.28 μC. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated. (a) What is the final charge on each object? (b) How many electrons (or protons) make up the final charge on each object? (a) Number i (b) Number IN Units Units

Three neutral metal balls A, B and Care suspended by cotton threads with B touching C. A negatively charged rod is brought close to A and C is touched with a finger. The finger is then removed under the presence of the rod. After the rod is removed, the charge on the balls will be A A: neutral B: negative C: negative OA: positive B: negative C: negative OA: positive B: negative C: positive A: neutral B: neutral C: neutral BXC OA: neutral B: positive C: positive

Multiple Choice.