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Two particles with the same positive charge, QA and QB are released from rest in separate uniform electric fields that point in the negative x-direction. There is no interaction between the two charges. Both charges move through a distance d. (Ignore any gravitational forces.) 15. [6 pts] Is the value of Vy - Vx positive, negative, or zero?
When a beam of white light (one that contains all colors) enters from air a plate of this glass at an incidence angle of 38.050, what is the absolute value of θ, the angle in the glass between blue and red parts of the refracted beams?
A major leaguer hits a baseball so that it leaves the bat at a speed of 30.0 m/s and at an angle of 36.9o above the horizontal. Calculate the horizontal and vertical components of the baseball's velocity
A wooden block weighing 9 N is at rest on top of a wooden desk. The coefficient of static friction among the block and the desk is 0.57. Discover the minimum horizontal force needed to move the block if the following occurs. The block is being presse..
gravitational infall calculate the required mass accumulation rate to the present sun from r 8 to r rs radius of sun
The current through a lamp connected across 120 V is 0.48 A. the resistance when the lamp is on is 250 ohm When the lamp is cold, What is the current through the cold lamp
A 1.5V battery delivers 9.0ma for 40 hours. During that time, the battery voltage drops linearly from 1.5V to 1.0 V. How much energy does the battery deliver during this time
A driver traveling at 72 km/hr sees an animal dash out onto the road and slams on the brakes. What was the driver's reaction time
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward, What is the total time the blue car is moving, What is the acceleration of the yellow car
A two-stage rocket moves in space at a constant velocity of +4920 m/s. What is the velocity (magnitude and direction) of the 2020-kg lower stage immediately after the explosion
A 71-kilogram person stands on a bathroom scale in an elevator. Find what does the scale read if the elevator is ascending with an acceleration of 3.0 m/s2
You make a capacitor by cutting the 15.5 cm--diameter bottoms out of two aluminum pie plates, separating them by 3.40 mm, What's the capacitance of your capacitor
A 1.0 kg ball drops vertically onto a floor, hitting with a speed of 28 m/s. It rebounds with an initial speed of 12 m/s. What impulse acts on the ball during the contact
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