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A) A football player kicks a football in a field goal attempt. When the football reaches its maximum height, what is the relationship between the direction of the velocity and acceleration vectors? Assume air resistance is negligible.
B) At the maximum height, the velocity and acceleration vectors are parallel to each other.
C) At the maximum height, the velocity and acceleration vectors are perpendicular to each other.
D) At the maximum height, the velocity and acceleration vectors point in opposite directions.
E) At the maximum height, both the velocity and acceleration vectors are zero.
A 5.70 kg object on a horizontalfrictionless surface is attached to a spring with spring constant1090 N/m. What is the amplitude of the motion
A sled traveling at a speed of 5.0 m/s slows to a stop 4.0 m fromthe point where its passenger rolled off. What is the magnitude of the horizontal net force that slows the 110 N sled?
A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 210 mi/h in 3.00 s. (a) Find the average acceleration of the plane. m/s2 (b) Assuming the acceleration is constant, find the distance the plan..
A isolated conducting sphere R=3.0 cm has a charge placed on itssurface. The surface charge density is uniform and has the value-7.2x10^(-6) C/m^2.(1) Find the total charge on the sphere, (2) themagnitude and direction of the electric field at r=R.(3..
A 18.60 kg piece of zinc at 75 degrees Celsius is placed in a container of water. The water has a mass of 20 kg and has a temperature of 10.10 degrees Celsius before the zinc is added. What is the final temperature of water and zinc.
A bullet is fired through a board 13.5 cm thick, with a line of motion perpendicular to the face of the board. If the bullet enters with a speed of 387 m/s and emerges with a speed of 163 m/s, what is its acceleration as it passes through the boar..
a mass of 10kg is undergoing uniform circular motion in horizontal plane, the radius of the circular path is 3.2m, determine the magnitude of the tangential velocity of the mass
a 11.00 kg block starts from rest at the top of a 25.0 meter long 30.0 degree incline. Its kinetic energy at the bottom of the incline is 1347.5 J
what is the kinetic energy of the system. assume the roller coaster in Fig. 6-41 (h1 = 36 m, h2 = 14 m, h3 = 25) passes point 1 with a speed of 2.00 m/s. If the average force of friction is equal to one sixth of its weight, with what speed will it ..
A light bulb is wired in series with a 122-? resistor, and they are connected across a 120.0-V source. What is the resistance of the light bulb
A concave mirror (R = 56.0 cm) is used to project a transparent slide onto a wall. The slide is located at a distance of 38.0 cm from the mirror, and a small flashlight shines light through the slide and onto the mirror. The setup is similar to that ..
A lens for a 35mm- camera has a focal length given by = 51mm, What is the magnification of the image on the film
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