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If the acceleration of a 75 kg skydiver is 4m/s2,
a. what is the net force on theskydiver?
b. what is the weight of the skydiver on the earth's surface?
c. what is the magnitude of the force of air resistance?
A person lifts a 5kg cement block a vertical distance of 2.3m and after that aeries the block horizontally a distance of 6m. Determine the work completed by the person and by the force of gravity in this process.
A large turntable rotates about a fixed vertical axis, making one revolution in 5.00 s. What is the angular speed of the turntable when the child is 2.50 from the center, assuming that you can treat the child as a particle
The length of the ice block is L1 = 0.00484 m and its temperature is T1 = -11.0 °C. The aluminum block is L2 = 0.00139 m long, Calculate the heat per second per square meter
Calculate the mass of a solid gold rectanglar bar that has dimensions lwh = 4.20 cm x 12.0 cm x 30.0 cm. (the density of gold is 19.3x10^3 kg/m^3.)
A helicopter is ascending vertically with a speed of 5.98. At a height of 149 above the Earth, a package is dropped from a window. How long till the package hits ground.
A mass of 0.006 kg is attached to a spring that requires a force of 0.01 N to extend it 0.05 meters greater than its natural length, Find maximum velocity of spring when released from rest
Three point charges are located near a spherical Gaussian surface of radius R = 6 cm. What is the electric flux through this surface
A venturi is constructed of a 9.0 cm diameter pipe with a 2.0 cm diameter throat. What is the pressure in the throat
A screen with a double-slit with a slit separation of 0.03 mm is illuminated by light of a wavelength 600nm. What is the distance from the slit to the screen in meters
An electric potential is given by V = 4x^2 + 2y^2 + x + z + 2 volts. What is the electric field at the point (2,2,2)
Illustrate the security threats that An industry will face when it implements a wireless network. Suppose that the industry occupies the six middle floors
A 10kg box is acked on by forces F1 = 7.4 and F2 = 4.5. What additional horizonal force will keep the box at rest
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