1. WHAT IS THE TOTAL CHARGE OF 80.0 KG OF ELECTRONS?
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- 2) Three equal negative charges, Q1=Q2=Q3=-Q are arranged on an equilateral triangle of side a centered at the origin as shown in the figure below. А. Sketch the electric field everywhere in space. В. What electric force (direction and magnitude) does Q3 feel? С. Can you replace Q2 with another charge so that Q3 feels no net force? D. Determine the electric flux through a spherical surface of radius 5a centered at the origin. Е. What is the approximate electric field (magnitude and direction) distance 1000a from the origin?7. You put a box on a skateboard and give it a quick push with a certain force. It starts to move. After it leaves your hand, it will... * a. Continue at a constant speed forever. O b. Slow down constantly until it stops. c. Speed up constantly forever. d. Speed up for a little while, then go at a constant speed forever. e. Speed up for a little while, go at a constant speed for a while, then slow down to a stop. sheet of oaA box is being pulled to the right over a rough surface. T> fk, so the box is speeding up. Suddenly the rope breaks. What happens? The box Select one: a. Slows steadily until it stops b. Continues with the speed it had when the rope broke С. Continues speeding up for a short while, then slows and stops. O d. Keeps its speed for a short while, then slows and stops. e. Stops immediately
- 1 object with a mass of 1500 g (grams) accelerates 10.0 m/s> when an unknown force is applied to it. What is the amount of the force?Plz use g = 9.8 m/s210. If two objects are dropped in an environment without air resistance, what will occur? Both of the objects will fall with constant velocity O The lighter of the two objects will fall faster than the heavier. O The heavier of the two objects will fall faster than the lighter. O The objects will accelerate downward at the same rate.
- 7. A bowling ball and a feather are dropped from a height of 100 ft. The bowling ball weighs 12 Ibs and the feather weighs 3 ounces. a. What is the Force (in Newtons) of both objects? b. The value of g is varies depending on what planet you are on. Bigger planets have a larger value of g. The value of g on the moon is 1.62 m/s2. Calculate the forces of these objects falling on the moon.A 100. m E 38 m 20. m B What is the velocity of a car with a mass of 40 kg as it travels along the track?1F=10k 30 5=12k 5=18k Calculate the Fx and Fy components of all the the forces and determine the resultant force. 券