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Cars A and B are traveling around the circular race track. At the instant shown, A has a speed of 78ft/s and is increasing its speed at the rate of 15 ft / s2, whereas B has a speed of 117ft/s and is decreasing its speed at 25 ft / s2.
Determine the relative acceleration of car A with respect to car B at this instant.
Determine the angle ?a of aA/B (counterclockwise from the positive x axis).
What are the forces acting on the board due to the two supports as a diver of mass 63 kg stands at the end of the board over the water.
If the partial pressure of water vapor is 47 mm Hg in the lungs at 760 mm Hg pressure, what percentage of air does the water vapor constitue
During a crash test, a car moving at 60 km/ hr collides with a rigid barrier and comes to a complete stop in 200 ms.
A person is making homemade ice cream. She exerts a force of magnitude 22 N on the free end of the crank handle, and this end moves in a circular path of radius 0.28 m. The force is always applied parallel to the motion of the handle. If the handl..
At what distance from the ring's center is E maximum. How deep is the tank.
A 5kg sphere moves at 20m/s makes a perfectly inelastic collision with a second sphere that is at rest. What is the mass of the second sphere
A 21 kg block on a horizontal surface is attached to a horizontal spring of spring constant k = 2.3 kN/m, What is the kinetic energy of the block when it has moved 2.0 cm from its point of release
A bag of blood with a density of 1050 kg/m^3 is raised about 1.00m higher than the level of a patient's arm. How much greater is blood pressure at the patient's arm than it would be if the bag were at the same height as the arm.
Find out (a) capacitance and (b) maximum voltage that can be applied to a Teflon-filled parallel- plate capacitor having a plate area of 175 cm2 and an insulation thickness of 0.040 mm.
A 7.3×10?4V/m electric field creates a 5.0×1017electrons/s current in a 2.0-mm-diameter aluminum wire. What is the mean time between collisions for electrons in this wire
Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV. What is the resonant absorption wavelength
what is the entropy change during the free expansion of 1.70 moles of an ideal gas from an intial volume of 1.60 liters into an evacuated volume of 1.90 additional liters
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