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1. A proton initially moves left to right along the x-axis at a speed of 2.0 x 10^5 m/s. it moves into an electric field that points in the negative x-direction, and travels a distance of 0.20m before coming to rest. Assuming the electric field is constant in this region of space, calculate the electrical potential difference (in V) over this distance.
a. -120
b. 210
c. 360
d. 470
2. Two resistors of values 6.0 ohm and 12.0 ohm are connected in parallel. This combination is hooked in series with a 2.0 ohm resistor and a 24.0V battery. What is the voltage (in V) across the 2.0 ohm resistor?
a. 6.4
b. 8.0
c. 9.6
d. 12.0
e. 14.4
A speck of dust on a spinning DVD has a centripetal acceleration of 20 m/s^2. A) What is the acceleration of a different speck of dust that is twice as far from the center of the disk? B) What would be the acceleration of the first speck of dust if t..
A shaving mirror is a concave mirror used to give someone a close up view of their face. how far is the man's face from the mirror
A ball is rolling down a ramp. When it passes a particular point, you determine that the ball is traveling at an angular speed of 12.0 rad/s, Determine the magnitude of the balls angular acceleration
A very long, straight solenoid with a cross-sectional area of 6.10 cm2 is wound with 42 turns of wire per centimeter, Obtain the average induced emf in the secondary coil
A 1.0-cm-tall object is 60 cm in front of a diverging lens that has a -30 cm focal length, Calculate the image position
Assume you are helping some friends, working the stage at a rock concert wearing earplugs that provide a reduction of 16 dB. Determine what is the ratio of the sound intensity just outside the plugs to the intensity reaching your eardrums
The apparatus show in firgure P11.8 was used by Joule tomeasure the mechanical equivalent of heat. what is the increase in tempterature of the water
A 5kg block is pushed 3 m up a wall by a 90 N force F. Assume that the block starts from rest and that it has an acceleration of 0.5 m/s2. Find the work done by each force acting on the block
Department Alpha had no beginning inventory. The department added direct materials of $100,000 and conversion costs of $150,000 during the month of July. Materials are added at the beginning of the process and conversion costs are added evenly thr..
A uniform electric field, E = -50 N/C, fills a region of space. A partcicle with mass, m = 0.025 kg, bearing charge, q = 1mC, Determine where and when the particle crosses the x-axis
A ball is fired at an angle of 45 degrees from ground level in the absence of air resistance. If the maximum range is 27m then what is its inital speed and what is the time of flight
At this depth, find what is the buoyant force on a spherical submarine having a diameter of 6.30 meter
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