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An empty spherical weather balloon with a mass of 5 kg has a radiusof 2.879 m when fully inflated with helium. It is suppose to carrya small load of instruments having a mass of 10 kg. Taking air andhelium to have densities of 1.16 kg/m3 and 0.160kg/m3, respectively, what will be the acceleration of the balloon and load immediately after it is released?
A mass (10 kg) rests on a surface (ustatic=.6) connected by a cord to a hanging mass of 2 kg. What is the acceleration of the heavier mass
A 2.0-kg ball is attached to the end of a 2.5-m string to form a pendulum. This pendulum is released from rest with the string horizontal
a horizontal beam of electrons initially moving at 3.3 107 ms is deflected vertically by the vertical electric field
During 5 successive 0.97 min intervals, a runner moves at the following constant speeds: 0.436 km/min, 0.250 km/min, 0.160 km/min, 0.160 km/min, and 0.320 km/min. calculate the total distance traveled and the average speed.
question jason leaves detroit at 200 p.m. and drives at a constant speed west along i-96. he passes ann arbor 40 mi
Some European trucks run on energy stored in a rotatingflywheel, with an electric motor getting the flywheel up to its topspeed of 200rad/s. What is the kinetic energy of the flywheel after charging
You have been called to testify as an expert witness in a trial involving an automobile accident, determine that the coefficient of kinetic friction between the wheels and the pavement at the time of the accident was 0.59
Two gravitational forces act on a particle, in perpendicular directions. To find the net force, can we add the magnitudes of those two forces?
A 0.9 inch tall clock is 29 cm in front of a diverging lens which has a focal length of -30 cm, Determine the image distance and height
A landscape architect is planning an artificial waterfall in a city park. How far from the wall will the water land
A block of mass 7.1 kg is pulled along a horizontal frictionless floor by a cord that exerts a force of 41.0 N at an angle 34.9° above the horizontal, What is the magnitude of the normal force exerted on the mass
use the inverse square law to display that in space shuttle territory, 200 kilometers above earth's surface, the force of gravity on a shuttle is about 94 percent of that at earth's surface.
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