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A point charge (Q1) has a magnitude of -7 uC. A second charge (Q2) has a magnitude of -5.5 uC and is located 143 cm from the first charge. Find the magnitude of the force between the two charges.
Two balloons are charged with a different quantity of charge: balloon A with 5 nC and balloon B with 4 nC. They are held apart at a separation distance of 3.5 meters. Determine the magnitude of the electrical force of repulsion between them.
Determine the electrical force of attraction between two balloons with separate charges of +4.5 x 10^-8 C and -1.9 x 10^-8 C when separated a distance of 0.95 m.
The following equations give the position x(t) of a particle in four situations (in each equation, x is in meters, t is in seconds, and t > 0): (1) x = 3t - 2;(2) x =-4t2 - 2; (3)x = 2/t2;and (4) x =-2.(a) In which situation is the velocity v of the particle constant? (b) In which is v in the negative x direction?
2. A car travels 22 km south, 12 km west, and 14 km north in half an hour. (See the figure below)
a) What is the average speed of the car?
b) What is the final displacement of the car?
c) What is the average velocity of the car?
an electron enterd uniform field that is directed downward and has a magnitude of 5 N/C. (a.)find the magnitude and direction of the force experienced by the electron (b.) find also its acceleration
A race car is about to pass a curve road with a diameter of 450m at a constant speed of 22.5m/s. What is the centripetal acceleration of the race car?
A bullet is fired vertically upward with an initial velocity of 98m/s from the top of a building 100m high. Find,
a) the maximum height reached above the ground
b) the total time before reaching the ground
c) the velocity on landing
an object moving in simple harmonic motion has an amplitude of 0.02m and a frequency of 20hz. find the acceleration and velocity
An object moving in simple harmonic motion has an amplitude of 0.02m and a frequency of 20hz. Find the period of oscillation.
