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A champion archer hits a bullseye in a target mounted on a wall a distance L away and situated at a height h above his bow. Deduce the equation between the speed (at which the arrow left his
bow), the arrow's initial angle θ with the horizontal, the height, and the distance of the target
(whose solution the archer evidently knew. Neglect air resistance).
The diameter of the moon is 3.78x10^6 m. It subtends an angle of 0.00982 radians at the surface of the Earth. How far is the Moon from the Earth
A point particle has a charge equal to +2.30 μC and isfixed at the origin.a) What is the electric potentialV ata point 3.80 m from the origin assuming that V = 0 at infinity?
Evaluate the rotational inertia of a solid iron disk of mass 48 kilogram, with a thickness of 3.95 centimeter and radius of 18.9 centimeter, about an axis through its center and perpendicular to it
when you lift an inverted glass from a basin of water the glass remains filled with water with the water in the glass
A dynamite blast at a quarry launches a rock straight upward, and 1.9 s later it is rising at a rate of 18 m/s. assuming air resistance has no effect on the rock, compute its speed (a) at launch and (b) 4.6 s after launch.
You observe that a solid cube of some material floats on the surface of an oil puddle at a service station with 76.3% of its volume submerged. What is the density of the cube's material
A circular coil having 19 turns and a radius of R = 19.2cm carries a current of 3.30A. It is placed in a uniform magnetic field of 62.0mT. What is the magnitude of the torque acting on the coil
One heater uses 270 W of power when connected by itself to abattery. Another heater uses 350 W of power when connected byitself to the same battery. How much total power do the heaters use when they are both connected in series across the battery?
A narrow but solid spool of thread has a radius R and mass M. compute what force must you exert on the thread
A tungsten cathode with work function 4.5 eV is heated torelease electrons that are then initially at rest outside the cathode. The electrons are accelerated by a potentialdifference to create a beam of electrons with a deBroglie wavelength of 0.0..
A light bulb is connected to a 240-V wall socket. The current in the bulb depends on the time t according to the relation I = (2.828 A) sin[(345.4 Hz)t]. What is the average power delivered to the light bulb
A solid ball of mass M and radius R starts from rest and rollswithout slipping down a hill; Find the ball's speed at thebottom of the hill
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