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On a spacecraft, two engines are turned on for 991 second at a moment when the velocity of the craft has x and y components of v0x = 5840 m/s andv0y = 8140 m/s. While the engines are firing, the craft undergoes a displacement that has components of x = 3.64 x 106 m and y = 6.60 x106 m. Find the
(a) x and
(b) y components of the craft acceleration.
A hydrogen atom has a radius of about 0.05 nm. estimate the electron's kinetic energy in three dimensions.
Force F = (6.0 N) i hat + (-9.0 N) k hat acts on a pebble with position vector r = (0.90 m) j hat + (-0.6 m) k hat, What is the resulting torque acting on the pebble about the origin
A bullet of mass 0.002 kg moving at 421 m/s impacts a large fixed block of wood and travels 6.1 cm before coming to rest. find the force exerted by the wood on the bullet
A wire is formed into a circle having a diameter of 10.3 cm and is placed in a uniform magnetic field of 3.25 mT. The wire carries a current of 5.00 A. Find the maximum torque on the wire.
An electron is confined in a box 1.0 x10^-9m in width. What is the uncertainty in its speed
two blocks of mass 3 kg and 6 kg resp are placed on a smooth horizontal surface. they are connected by a light spring
Two masses traveling at the same speed v0 collide head on. Nothing is known about collision other than that it is not completely inelastic.
A car is hauling a 88 kg trailer, to whichit is connected by a spring. The spring constant is 2150 N/m. The car accelerates with an acceleration of0.33 m/s2. By how much does thespring stretch?
question explain whether mars was visible from your location at midnight on december 3 1999. when it is midnight at
For a certain transverse wave, the distance among two successive crests is 1.20 m and eight crests pass a given point along the direction of travel every 14.50s. Compute the wave speed.
In a diesel engine, the piston compresses air at 309 K to a volume that is 0.0621 of the original volume and a pressure that is 48.3 times the original pressure. What is the temperature of the air after the compression? K
How much time after engine failure will elapse before the rocket comes crashing down to the launch pad?
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