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A 4.97-g bullet is shot through a1.02-kg wood block suspended on a string2.00 m long. The center of mass of the block rises a distance of0.49 cm. Find the speed of the bullet asit emerges from the block if its initial speed is 404 m/s.
The height of a helicopter above the ground is given by h = 3.15t3, How long after its release does the mailbag reach the ground
There is a moon orbiting an Earth-like planet. The mass of the moon is 4.74 × 1022 kg, the center-to-center separation of the planet, What is the angular momentum of the moon
A law enforcement officer in an intergalactic "police car" turns on a red flashing light and sees it generate a flash every 1.3 s. How fast is the "police car" moving relative to the earth
A 18.0 kg loudspeaker is suspended 2.40m below the ceiling by two 4.10m long cables that angle outward at equal angles. What is the tension of each of the cables.
two charges q1 4 microc q2 -23 microc are l 19 cm apart. a third charge is to be placed on the line between the two
a cessna aircraft has a lift-off speed of 120 kmh.a what minimum constant acceleration does the aircraft require if the
starting from its nest, an eagle flies at constant speed for 3.0 min due east, then 4.0 min due north. how long is the eagle in the air
Two identical clocks are synchronized. One is then put in orbitdirected eastward around the Earth while the other remains on theEarth. Which clock runs slower? When the moving clock returns tothe Earth, are the two still synchronized? Photons of l..
Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the driver is that the load may slide forward, Calculate the minimum stopping distance for the truck for which the load will not slide forward relative to th..
You are applying a anti reflecting coating to your plane. You don't want to be seen by radar which uses 'light' of wavelength 2cm. determine the minimum thickness of this coating
A loop of wire with radius R has charge density 3theta^2 , where theta is in radians. Write an integral (but do not solve) to find the electric potential at the center of the loop
An electric motor has a 840-turn coil on its armature. The coil is circular with diameter 17cmand carries 10.0A, ind the maximum torque on the coil when it rotates in a 1.20T magnetic fiel
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