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Determine the stopping distances for an automobile with aninitial speed 90 km/h and human reaction tim of 1.0s for anaccerleration a=-4.0 and a=8.0.
7400 J of input heat to perform a certain amount of work. Engine 2 has an efficiency of 0.33, How much input heat does the second engine require
a student stands initially at rest at the center of a turntable that can rotate without friction. the student begins to rotate a heavy ball on the end of a 0.800 chain about her head, what is the final total kinetic energy of the system
What is the mass of the block on the left. At what rate is the plate's area increasing when the radius is 50 cm? (Give your answer correct to 2 decimal places.)
An electron moves through a uniform electric field E = (2.50 i + 5.00 j) V/m and a uniform magnetic field B = (0.400 k) T. Determine the acceleration of the electron
compute the magnitude of the magnetic force exerted on it.
A landing airplane makes contact with the runway with a speed of 78.0 m/s and moves toward the south. After 18.5 seconds, the airplane comes to rest. What is the average acceleration of the airplane during the landing?
You've been given the task of designing a "water couch"-that one could lie on, floating on a lake, for instance-in the form of a flat rectangular slab made of Styrofoam with a density of 85 kg/m 3. Explain why he will not be able to breathe that wa..
A uniform 7.6 kg ladder is leaning against a frictionless vertical wall, with which it makes a 15 deg angle. how massive a person would make the ladder slip
A car traveling on a flat (unbanked), circular track accelerates uniformly from rest with a tangential acceleration of 2.20 m/s2. The car makes it one quarter of the way around the circle before it skids off the track. From these data, determine the ..
A particle moving along the x-axis starts at x=-2(m) and has a velocity x(t)=-3t + 4 as v in m and t in s , find the velocity and acceleration
illustrate a diagram to show the forces acting on the aircraft while it is flying in a horizontal circle with its wing banked at an angle to horizontal.
The left end of a long glass rod 8.00 cm in diameter and with an index of refraction of 1.60 is ground and polished to a convex hemispherical surface with a radius of 4.00 cm. Find the height of the image formed by paraxial rays incident on the con..
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