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Consider a point charge q = 5.0?C, point A at distance d1 = 1.050 m from q, and point B at distance d2 = 0.500 m. If these points are diametrically opposite each other,what is the electric potentia
How does the energy stored in a capacitor change if each of the following happens? a) The potential difference is doubled, while the capacitance is held constant. b) The charge on each plate is dec
A rubber ball dropped from a height of 2 bounces back to a height of 1. Draw the ball's position and velocity graphs, stacked vertically, from the instant you release it until it returns to its maxi
A vector that is 7.4 units long and a vector that is 5.4 units long are added. Their sum is a vector 12.3 units long. A) determine the angle between the original two vectors.
The normal human eye has maximum visual acuity with a pupil size of about 3. For larger pupils, acuity decreases due to increasing aberrations;
The planet Neptune is 4.5 X10^12m from the earth. Its diameter is 4.9 x 10^7m. What diameter telescope objective would be necessary to just barely see Neptune as a disk rather than as a point of li
A charge of 3.0 mc and a second charge are initially far apart. If it takes 29J of work tobring them to a final configuration in which the 3.0 mc is at x+1.0 mm, y-1.0mm, and the other charge is at
What will be the total horizontal distance traveled by the ball? What is the x-component of the final velocity of the ball? What is the y-component of the final velocity of the ball when it lands ba
When the wire is removed, the spheres repel each other with an electrostatic force of 0.0360N. Of the initial charges on the spheres, with a positive net charge, what was (a) the negative charge on
Another student is 4.0 m away from the talkers. What sound intensity does the other student measure? Assume that the sound spreads out uniformly and undergoes no significant reflections or absorptio
A 8.0-m long wire with a mass of 10 g is under tension. A transverse wave for which the frequency is 570 Hz, the wavelength is 0.10 m, and the amplitude is 3.7 mm is propagating on the wire. The max
You are generating traveling waves on a stretched string by wiggling one end. If you suddenly begin to wiggle more rapidly without appreciably affecting the tension, you will cause the waves to move
If your pupil diameter is 2 , as it would be in fairly bright light, what is the smallest diameter circle that you can barely see as a circle, rather than just a dot, if the circle is at your near
A point particle that has a charge of 18.0 µC is located at x = 0, y = 0 and a point particle that has a charge q is located at x = 14.4 cm, y = 0. The electric force on a point particle that
Imagine a truck with a mass of 22 metric tons (t) (1 t=1,000 kg) barrelling down a highway at a speed of 59 mi/h. What is the truck's momentum in kilograms? What is its kinetic energy in kilograms?
While skidding toward the deer your car is accelerating at a rate of -5 m/s2. What is the maximum initial speed (in m/s) you could have had to avoid hitting the deer?
A Carnot engine operates between 254°C and 117°C, absorbing 5.58 x 104 J per cycle at the higher temperature. (a) What is the efficiency of the engine? (b) How much work per cycle is this e
A Carnot engine absorbs 53.2 kJ as heat and exhausts 33.0 kJ as heat in each cycle. Calculate (a) the engine's efficiency (no unit) and (b) the work done per cycle in kilojoules.
A Carnot engine whose low-temperature reservoir is at 17.7°C has an efficiency of 29.2%. By how much should the Celsius temperature of the high-temperature reservoir be increased to increase th
In an experiment, 99.0 g of aluminum (with a specific heat of 900 J/kg·K) at 93.0°C is mixed with 88.0 g of water (with a specific heat of 4186 J/kg·K) at 32.0°C, with the mixt
What is the entropy change for the drop? The specific heat of ice is 2220 J/kg•K; the specific heat of liquid water is 4190 J/kg•K; and the heat of fusion of water is 333 kJ/kg.
Write one completely detailed calorimetry equation necessary to solver for the equilibrium temperature of the water.
Lasa 2 write your own bill, Assignment 1: LASA 2 Write Your Own Bill Scenario: You are a newly elected Member of Congress. It is up to you as to whether you are a Senator or a Representative f
Nanomaterial, 1/ Explain two methods to make grapheme? 2/Explain two methods to make quantum dots? 3/Explain the fluorescence/emission processes in carbon nanotubes and how this emission can be us