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Q. Two charged spherical conductors are connected by a long conducting wire, and a charge of 15 μC is placed on the combina- tion. One sphere has a radius of 4.05 cm and the other a radius of 6.05 cm.
What is the electric field near the surface of the sphere with the smaller radius?
Q. Maria wants to plant a small tomato garden in her yard. She bought 25 tomato plants, and she has read that ideally tomatoes are planted in a square grid to help them pollinate each other.How many plants x should she plant in each row so that her 25 plants end up in a square (i.e., x plants in each of x rows)?
A trombone has an effective length of 160 cm and the speed of sound in air is 345 m/s. Notes are selected by moving a U-shaped tube in or out to change effective length of the trombone.
How far would trampoline stretch if the performer stands still on it while taking a bow.
A car drives north at 48 for 10 and then turns east and goes 5 at 62 . Finally, it goes southwest at 24 for 6. Determine the cars displacement.
A 56.0 kg person jumps from rest off the 9.0 m high tower straight down into the water. Neglect air resistance throughout the descent. She comes to rest 3.40 m under the surface of the water. Find out the magnitude of the average force that the water..
A horizontal board weighing 198 N is supported at points A and B. The plank serves as a platform for a painter, who weighs 558.5 N. Find out the maximum distance D, such that the plank would not tip, no matter where the painter stands.
Now, as both pipes vibrate at their fundamental frequencies, the beat frequency of 17 Hz is heard. How many centimeters were cut off the end of the second pipe? The speed of sound is 333 m/s.
A jetliner is moving at a speed of 258 m/s. The vertical component of the plane's velocity is 85.8 m/s. find the magnitude of the horizontal component of the plane's velocity.
To get back to the shuttle, the astronaut unstraps a 10-kg tool kit and throws it away with a speed of 8 m/s. In the script, the astronaut, who has a mass of 80 kg without the toolkit, survives, but is this accurate.
compass needle points 25 degrees E of N outdoors. However, as it is placed 17 cm to the east of a vertical wire inside a building it points 61 degrees E of N. What is the magnitude of the current in the wire? The earth field there is 0.50X10^-4 T ..
A motorist drives south at 30.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.80 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.8 min trip, how do you find the total vector, average speed and average velo..
A 10 kg runaway grocery cart runs into a spring with spring constant 240N/m and compresses it by 65cm. What was the speed of the cart just before it hit the spring.
How long does it take for the grinding wheel to stop ? Through how many radians has the wheel turned during the interval found in.
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