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A balloon starts rising from ground from rest at some constant acceleration.After some time, a stone is dropped from it.If the stone reaches the ground in the same time in which balloonn reached the dropping point from ground,find yhe acceleration of the ballon.
This brings to mind the question of the existence of instantons, namely: Do non-trivial asymptotically Euclidean solutions exists in theories of gravity? Now, there are well-known objects that are called gravitational instantons, but those are not..
However, as the drawing shows, a plane mirror reflects light from the bird into your camera. If x = 4.2 m and y = 3.9 m in the drawing, for what distance must you set focus of the camera lens in order to snap a sharp picture of the bird's image.
A mustang going from 0 to 60 in 3.5 seconds has an acceleration of 7.7m/s. Radius of the tires is .35m, what is the angular displacement of the tires between the rest time and 60mph.
A tuning fork of unknown frequency makes 5 beats per second with a standard fork of frequency 377 Hz. The beat frequency decreases when a small piece of wax is put on a prong of the first fork. What is the frequency of this fork?
a ball starts from rest and rolls down a hill with uniform acceleration traveling 150 m during the second 5.0 s of its
A 4.50 kg counterweight is attached to a light cord, which is wound around a spool. The spool is a uniform solid cylinder of radius 6.00 cm and mass 1.80 kg. What is the net torque on the system about the point O
The mean horizontal age strophic wind speed within an atmospheric column extending from 300 hPa to 250 hPa increases from 1.5 knots to 3.5 knots over a distance of 75 kilometer to the east. Determine what is the estimated vertical velocity at 300 ..
During a solar eclipse, the Moon, Earth, and Sun all lie on the same line, with the Moon between Earth and the Sun. DATA: Msun=1.991×1030 kg, Mearth=5.98×1024 kg, Mmoon=7.36×1022 kg.
A rifle is aimed horizontally at a target 51 {rm m} away. The bullet hits the target 1.5 {rm cm} below the aim point. What was bullet's speed as it left the barrel.
Light spring having a force constant of 130N/m is used to pull a 12.0 kg sled on a horizontal frictionless ice rink. By how much does the spring stretch
An aquarium is filled with a liquid. A cork cube, 10.0 centimeter on aside, is pushed and held at rest totally submerged in a liquid. evaluate what the density of the liquid
In a control system, an accelerometer consists of a 4.99-g object sliding on a calibrated horizontal rail, Find the force constant of the spring required for the calibration to be correct
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