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A plane, diving with constant speed at an angle of 53.0° with the vertical, releases a projectile at an altitude of 750 m. The projectile hits the ground 7.00 s after release. (Assume a coordinate system in which the airplane is moving in the positive horizontal direction, and in the negative vertical direction. Neglect air resistance.)(a) What is the speed of the aircraft?(b) How far did the projectile travel horizontally during its flight?(c) What were the horizontal and vertical components of its velocity just before striking the ground?
The length of a simple pendulum is 0.72 m and the mass of the particle (the "bob") at the end of the cable is 0.27 kg. What is the angular frequency of the motion
A beam of light with red and blue components of wavelengths 670 nm and 425 nm, respectively, what is the index of refraction of the blue light
A box slides down a 40° ramp with an acceleration of 1.260 m/s2. Find out the coefficient of kinetic friction between box and ramp.
A cannon fires a cannonball from the top of a wall at a speed of 25.58 m/s and an angle of 17.44 degrees from the horizontal. What is the horizontal distance from the wall where the fired cannonball hits the ground
A certain freely falling object, released from rest, requires 1.50 s to travel the last 30.0 m before it hits the ground. Find the velocity of the object when it is 30 m above the ground
A point charge Q is located at the center of a very thin, spherical metal shell. what is the electric potential of the shell
A 8.6cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.64T pointing up. What is the average induced emf in the coil
q1. a hula hoop of radius 1.0m is in a uniform electric field with magnitude 1.4 x 102 nc. its normal is parallel to
Two small plastic balls hang from threads of negligible mass. Each ball has a mass of 0.180g and a charge of magnitude q. Find the tension in each of the threads
A light source emits a beam of photons, each of which has a momentum of 2.3 ?? 10??29 kg??m/s. What is the frequency of the photons
An object 2.0mm high is placed 12cm from a convex mirror of radius of curvature 12c, Determine the image distance using the mirror equation 1do+1di=1f
A 2 kg car moving towards the right at 4 m/s collides head on with an 8 kg car moving towards the left at 2 m/s, determine the velocity of the combined bodies
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