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Question 1.
A rock fell off a cliff and hit the ground with a speed of 16 m/s. How high is the cliff? Please use correct significant figures.
Question. 2.
Given A = (5.3, 35o) and B = (3.6, 162o). What is C = A + B?
C =
What is θ?
A wheel accelerates with a fix angular acceleration of 4.5 rad/s2. If the initial angular velocity is 1.0 rad/s, find what is the angle the wheel rotates through in 2.0 second
A child playing in a swimming pool realizes that it is easy to push a small inflated ball under the surface of the water while a large ball requires a lot of force
A star ship approaches its home planet at a speed of 0.1c. When it is 5.4×107km away, it uses its green laser beam (=540nm) to signal its approach. How long does the signal take to travel to the home planet? At what wavelength is the signal detected ..
What is the angular velocity of the tires in rad/s - Find the horizontal distance the arrow will travel before hitting the ground.
The radius of the hydrogen atom is 0.053 nm. find the Coulomb force between the electron and the proton in the atom
A person is making homemade ice cream. She exerts a force of magnitude 22 N on the free end of the crank handle, and this end moves in a circular path of radius 0.28 m. The force is always applied parallel to the motion of the handle. If the handl..
a frictionless roller coaster starts from rest 24m above the ground. part a whats its speed when it reaches the ground?
A block of mass m1 = 3.27 kg on a frictionless plane inclined at angle? = 31.2° is connected by a cord over a mass less, frictionless pulley to a second block of mass m2 = 2.38 kg hanging vertically (see the figure). (a) What is the acceleration of t..
A 3.00 kilogram object moving in the positive x-direction with a velocity of +5.00 m/s collides with and sticks to a 2.00 kilogram object initially moving in the negative y-direction with a velocity of -3.00 m/s
A camera requires 5.2J of energy for a flash lasting 1.0 ms. What power does the flashtube use while it%u2019s flashing
A 6.0 cm diameter pipe gradually narrowsto 4.0 cm. When water flows through this pipe at a certain rate, What is the volume rate of flow
A 6 kg bowling ball with a radius of 12 cm rolls in a straight line past you at a speed of 3 m/s. What are the components of the ball's total angular momentum about your position
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