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A transformer with 2 coils wrapped around an iron core is connected to a generator and a resistor, There are 13 turns inthe primary coil and 25 in the secondary. The peak voltage inthe resistor is 63V. What is the peak emf in the generator?
The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of -5.20 m/s2 for 4.05 s, making straight skid marks 61.0 m long, all the way to the tree. With what speed does the car then s..
A particle moves in a one-dimensional potential given by V(x) = Vo(e^-ax + bx),(V(x) is potential not velocity), Sketch the potential and the force as functions of x
At t = 5 s, an object moving on the x-axis at x = 3 m is traveling at 8 m/s i. At t = 9 s, it is at x = 17 m and its velocity is -1 m/s i. Find the average acceleration for this interval
A piece of balsa wood with density 0.50g/cm^3 is released under water. What is the initial acceleration?? Repeat for a piece of maple with density 0.760 g/cm^3? Repeat for a ping-pong ball with the average density of 0.127 g/cm^3.
A 23-g bullet traveling 230 m/s penetrates a 2.0-kg block ofwood and emerges cleanly at 170 m/s. how fast does it move after the bullet emerges
The froghopper, Philaenus spumarius, holds the world record for insect jumps. When leaping at an angle of 58.0 above the horizontal, some of the tiny critters have reached a maximum height of 52.7 above the level ground. What was the takeoff speed..
A car rounds a 230 m -radius curve at 14.5 m/s. If the horizontal force acting on the car is 790 N, what's the car's mass
What is the minimum initial speed of the dart if it is to hit a monkey before it hits the ground, which is 11.2 m below the initial position of the monkey, if x=50m and h=10m?
Four identical charges (+4.0 µCeach) are brought from infinity and fixed to a straight line. The charges are located 0.20 m apart. Determine the electric potential energy of this group.
An 85 kg man is standing 3.5 m from the right end of a10.0 m long 175 kg platform suspended by a cable at each end. What is the tension in the right side cable
An electron in the hydrogen atom makes a drop from n = 3 to m = 2. What wavelength of photon is emitted
White light is incident on a soap film (n = 1.30) ubaur, What is the minimum thickness of the soap film
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