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Q. A 16 kg wood ball hangs from a 2.0-m-long wire. The maximum tension the wire can withstand without breaking is 435 N. A 1.2 kg projectile traveling horizontally hits and embeds itself in the wood ball. What is the largest speed this projectile can have without causing the cable to break?
Q. Two small beads having positive charges 12q and q are fixed at the opposite ends of a horizontal insulating rod, extending from the origin (the location of the larger charge) to the point x = d. As shown in the figure below, a third small charged bead is free to slide on the rod. At what position is the third bead in equilibrium? Can this equilibrium be stable? If so when?
Object 1 has a mass m1 and a velocity 1 = (2.87 m/s). Object 2 has a mass m2 and a velocity 2 = (3.01 m/s). The total momentum of these two objects has a magnitude of 18.0 kg • m/s and points in a direction 66.5° above the positive x-axis. Find out m..
What must be the temperature of the cold reservoir in order to increase the efficiency to 29.0%
A lead ball is dropped into a lake from a diving board 5 above the water. After entering the water, it sinks to the bottom with the constant velocity equal to the velocity with which it hit the water. The ball reaches the bottom 3.20 after it is f..
A 12kg runaway grocery cart runs into a spring with spring constant 210 N/m and compresses it by 70 cm .What was the speed of the cart just before it hit the spring.
A compound microscope has an objective lens of focal length 10.50 with an eyepiece of focal length 14.80, and it produces its final image at infinity. The object to be viewed is placed 2.00 beyond the focal point of objective lens.
How much is the spring compacted
What are ranges of wavelength and frequency
A uniform magnetic field of 0.50 T is directed along the positive x axis. A proton moving with the speed of 60 km/s enters this field. The helical path followed by the proton shown has a pitch of 5.0 mm. find the angle between the magnetic field an..
A rock of mass m = 1.0 kg is tied to a string of length L = 1.9 m and is twirled in a vertical circle. The speed v of the rock is constant; that is, it is the same at the top and the bottom of the circle. If the tension in the string is zero when the..
Find the magnitude of total displacement of the object
An iguana that is slowing down at a uniform rate of acceleration while moving in positive direction.
One displacement vector A has magnitude of 2.78 km and point due north. Another displacement vector B has a magnitude of 7.40 km and also points due north. Provide diagrams and calculate the magnitude and direction of A+B, B-A, A-B.
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