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A rocket-powered hockey puck has a thrust of 1.50N and a total mass of 1.40kg . It is released from rest on a frictionless table, 4.60m from the edge of a 3.00m drop. The front of the rocket is pointed directly toward the edge. How far does the puck land from the base of the table?
A dentist uses a small mirror with a radius of 36 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 16 mm from the tooth, what is the magnification of an image.
The nucleus of the hydrogen atom has a radius of about 1.1 x 10-15 m. The electron is at a distance of about 5.2 x 10-11 m from the nucleus. find the volume of the atom
A small weight hangs from a string attached to the rearview mirror of a car accelerating at the rate of 1.17 m/s2. What angle does the string make with the vertical
Pulsed lasers used in science and medicine produce very short bursts of electromagnetic energy. If the laser light wavelength is 1062 nm (this corresponds to a Neodymium-YAG laser), and the pulse lasts for 30 picoseconds, how many wavelengths are ..
A golf club strikes a 0.034-kg golf ball in order to launch it from the tee. With what speed does the ball leave the club
The near point of a naked eye is 25 cm. When placed at the near point and viewed by the naked eye, a tiny object would have an angular size of 5.2 10-5 rad. Find the focal length of the eyepiece in cm
A car of mass 1430 kg drives in a direction 80o north of east at a latitude 73o in the northern hemisphere with a speed 85.0 km/hr
A man can row a boat at a speed of 7.45 km/h in still water. If he is crossing a river where the current is 2.00 km/h, find what direction should his boat be headed
a closed organ pipe resonates with frequency 6hz and an open organ pipe resonates with frequency 12hz. if the two organ
A beaker of water rests on an electronic balance that reads 999.0 g. A 2.4 cm-diameter solid copper ball attached to a string is submerged in the water, What is the new balance reading
In a 231-turn automobile alternator, the magnetic flux in each turn is fB = (2.36E-4 T*m2) cos(?t), where ? is the angular speed of the alternator. determine the maximum emf in the alternator
A flat, uniform, circular disk (R = 2.25 m, m = 84.0 kg) is initially at rest, but it is free to rotate in the horizontal plane about a vertical, frictionless axis through its center.
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