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The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is 96.3 m. In part a the person is looking at the base of the antenna, and his line of sight makes an angle of 32.1o with the horizontal. In part b the person is looking at the top of the antenna, and his line of sight makes an angle of 35.3o with the horizontal. How tall is the antenna?
Illustrate what is the horizontal component of the superhero’s displacement? Draw the vectors to scale on a graph to determine the answer.
A 2.0 m conductor is formed into a square and placed in the horizontal xy-plane. What is the magnetic flux through the conductor
A 620g object traveling at 2.1m/s collides head-on with a 320g object traveling in the opposite direction at 3.8m/s. what is the change in the kinetic energy of the 620g object
Using a 673-nm wavelength laser, you form the diffraction pattern of a 0.109-mm wide slit on a screen. How far is the screen located from the slit
A car travels at a constant speed around a circular track whose radius is 2.51 km. What is the magnitude of the centripetal acceleration of the car
Explain how fast must the candy bar travel to have the same 106 joules in the form of kinetic energy?
One end of a horizontal rope is attached to a prong of an electrically driven tuning fork that vibrates at a frequency 125Hz, What is the speed of a transverse wave on the rope
A 140 kg piano is being lifted at a steady speed from ground level straight up to an apartment 16.0 m above the ground. The crane that is doing the lifting produces a steady power of 400W. Explain how much time does it take to lift the piano?
Mike is riding his unicycle of wheel diameter 20 in. Mike rides for 30 m with an initial angular velocity of 0.75 rad/s, What is the unicycle's linear velocity at 30 m?
A massless cylinder 49 cm long rests on a horizontal frictionless table. The cylinder is divided into two equal sections by a membrane, How far will the cylinder move if the membrane is removed
A propeller is modeled as five identical uniform rods extending radially from its axis. The length and mass of each rod are 0.843 m and 2.83 kg, what is its rotational kinetic energy
Two 4.0-g spheres are suspended by 8.0-cm-long light strings (see the figure). A uniform electric field is applied in the x-direction. determine the electric field intensity
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