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A clown is using a concave makeup mirror to get ready for a show and is 26 cm in front of the mirror. The image is 70 cm behind the mirror. (a) Find the focal length of the mirror. (b) Find the magnification.
You are trying to slide a refrigerator across a horizontal floor. The mass of the refrigerator is 188kg, and you require to exert a force of 347N to make it just begin to move. What is the coefficient of static friction between floor and refrigera..
A certain freely falling object, released from rest, requires 1.05 s to travel the last 33.0 m before it hits the ground. Find the total distance the object travels during the fall
q1. a demented scientist creates the new temperature scale the z scale. he decides to call the boiling point of
If the scattered photon has a wavelength of 0.320nm , what is the wavelength of the incident photon, Find the kinetic energy of the recoil electron
The energy released by nuclear bombs is measured in kiloton (kt) or megaton (Mt) units. One kiloton is a unit of energy released by 1000 tons of trinitrotoluene (TNT). One kiloton is 4.2×1012 joules. The yield of fission bombs is typically between..
This question requires three answers. Three resistors are connected in parallel with a 9.0 V battery. What is the voltage drop across R2
In the figure here, a red car and a green car move toward each other in adjacent lanes and parallel to an x axis. At time t = 0, the red car is at xr = 0 and the green car is at xg = 221 m. If the red car has a constant velocity of 29.0 km/h, the ..
cancer patient is undergoing radiation therapy in which protons with an energy of 1.2 MeV are incident on a 0.10-kg tumor. How many protons are absorbed by the tumor
A hollow spherical shell has mass 7.85kg and radius 0.220m. What is the kinetic energy of the shell after it has turned through 7.00rev
A capacitor of 12µF is charged by a 30 V battery. Afterwards, the capacitor is disconnected from the battery and connected to an inductor with L = 2H. What is the initial charge on the capacitor
question1a particle of mass m is attracted towards the origin under an influence of a force fmax3.a find out potential
A daring 51kg swimmer dives off a cliff with a running horizontal leap, What must her minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom
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