What is the momentum of the car
A 30 g car rolls from a hill 12 cm high and is traveling at 154 cm/s as it travels along a 275 cm horizontal track. What is the momentum of the car?
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What Methods have scientist used to study components, processes, and outcomes of cell division?
A coil is wrapped with 647 turns of wire on the perimeter of a circular frame (of radius27 cm). Each turn has the same area, equal to that of the frame. A uniform magnetic field is directed perpendicular to the plane ofthe coil. This field changes
A homeowner uses 400 feet of fencing face to enclose a rectengular garden. express the area A of the rectangle as a function of the width x of the rectangle?
Vector B has a magnitude of 43 and is pointing at an angle of 38 degrees south of west. Find the magnitude and direction of A+B.
A hiker shouts toward a vertical cliff 465 m away. The echo is heard 2.75 s later. (a) What is the speed of sound in air there? (b) The wavelength of the sound is 0.75 m. What is the frequency of the wave? (c) What is its period?
What are the current issues ans trends in psychology?
A particle of mass m is constrained to move between two concentric impermeable spheres of radii r = a and r = b (a < b). There is no other potential. Calculate the ground state energy and the normalised ground state wavefunction.
A rifle is aimed horizontally at a target 54 {rm m} away. The bullet hits the target 2.0 {rm cm} below the aim point. What was the bullet's speed as it left the barrel?
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