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A 2.60×104- rocket blasts off vertically from the earth's surface with a constant acceleration. During the motion considered in the problem, assume that remains constant. Inside the rocket, a 13.1-instrument hangs from a wire that can support a maximum tension of 32.8 . Find the minimum time for this rocket to reach the sound barrier without breaking the inside wire. Find the maximum vertical thrust of the rocket engines under these conditions. How far is the rocket above the earth's surface when it breaks the sound barrier?
A 70.0 kg football player leaps straight up into the air (with no horizontal velocity) to catch a pass. how fast was the ball travelling
A water wave traveling in a straight line on a lake is described by the equation y(x,t)=(3.75cm)cos(0.450cm^-1 x+5.40s^-1t), How fast does a wave crest travel past the fisherman
An object is located 17.2 cm in front of a convex mirror, the image being 6.78 cm behind the mirror. How far in front of the mirror is the second object located
If the coefficient of static friction is 0.500, what minimum force magnitude is required from the rope to start the crate moving
A newly discovered planet has twice mass of the earth, but the acceleration because of gravity on the new planet's surface is exactly the same as the acceleration due to gravity on the earth's surface. What is the radius Rp of the new planet in te..
When 1190J of heat are added to one mole of an ideal monatomic gas, Find the work done by the gas during this process
A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies with time according to ?(t)=?t+?t3, What is the initial value of the angular velocity
Two equal, positive charges, q=2.0µC are located on the x-axis, one at+0.3m and the other at -0.3m. Find the magnitude and direction of the resultant (net) force on Q
q1. what is the frequency shift of a 68 police radar signal when it reflects off a car moving at 117? radar waves
A small air-core solenoid has a length of 18 cm and a radius of 0 . 53 cm. The permeability of free space is 1 . 25664 × 10 ? 6 N / A 2 . how many turns per centimeter (whole turns plus fractional turns) are required
A capacitor is consists of two short sections of parallel wires in air. One wire is found to be of the voltage of 58 V, What is the capacitance of the two wires
T thin lense with a focal length of 50 cm is placed 100 cm from an object. How far behind the lense should we place a screen
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