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A player passes a basketball to another player who catches it at the same level from which it was thrown. The initial speed of the ball is 6.9m/s , and it travels a distance of 4.7m . What was the initial direction of the ball? Express your answer using two significant figures. If there is more than one answer, separate them by a comma.What was its time of flight?Express your answer using two significant figures. If there is more than one answer, separate them by a comma.
A roller coaster at the Six Flags Great America amusement park in Gurnee, Illinois, incorporates some clever design technology and some basic physics. What is the radius of the arc of the teardrop at the top
A 0.55 kg book moves vertically upwarda distance of 10 m, and thenvertically downward 10 m, returning toits initial position. How much work is done by gravity during the upwardmotion of the book
The string in a yo-yo is wound around an axle of radius 0.547 cm. The yo-yo has both rotational and translational motion, like a rolling object, and has mass 0.344 kg and outer radius 1.99 cm. Starting from rest, it rotates and falls a distance of 1...
Consider two parallel, horizontal metal plates a distance d = 2.0 cm apart. The upper plate is at +25 volts and the lower one is at 0 Volts. What is the direction of the electric field between the plates
A wooden block (mass 0.1kg) is set on a rotating disk. What is the minimum coefficient of friction to ensure the block does not slide outward
An unknown element is found to have an absorption spectrum with lines at 3.0, 7.0, and 9.0eV, and its ionization energy is 10.0eV. If a 9.0eV photon is absorbed, what energies can the subsequently emitted photons have?
A constant force is applied to object A and causes it to accelerate5m/s^2. The same force is applied to object B which accelerates 3m/s^2. The same force is applied to object C andit accelerates 8m/s^2.
The four tires on the author's car are inflated to an absolute pressure of 2.8 multiply.gif 105 Pa.what is the contact area between each tire and the ground
A mass of 2 kg is attached to a spring with spring constant k=100 N/m. What is the period of oscillation for the mass
a 2.40 m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 14.9 ms.
A 2.0-cm wide diffraction grating has 1000 slits. It is illuminated by light of wavelength 530nm. What are the angles of the first two diffraction orders?
How to find the magnetic field
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