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The acceleration of gravity is 9.8 m/s^{2}. Obtain the de Broglie wavelength for a ball of mass 1.15 kilogram just before it strikes the Earth after being dropped from a building 33.4 meter tall.
Answer in units of m
An old 9.0-V battery produces a potential dissimilarity of 9.0 V when checked with a voltmeter. If the internal resistance is 14.3 and a 100 resistor is connected across the battery leads, what is the voltage across the battery's leads?
An astronomical telescope uses an objective of power +1.280 D. If the length of the telescope is 80 centimeter, Determine power of the eyepiece
A virtual image of magnification +0.375 is produced when an object is located in front of a spherical mirror. Determine what type of mirror is it
A near sighted woman has a far point placed 0.750 m from one eye. Determine what would be the necessary power if a contact lens were used
You require a sheet of copper for a home project, and since it is sold by the square foot, you buy 2.0 ft2 (according to the label). But, when you get home and check the actual dimensions for yourself, you find that the area is really 1.997 ft2. If y..
A polarized light beam, with an 8.97 millimeter diameter circular cross section, is perpendicularly incident on an ideal polarizer, serving here as an analyzer. Find what force in does the light exerts on the polarizer
A building made of concrete is gauged to be 425 m tall when it is -23°C outside. How much taller will it be when the temperature reaches 41°C? (In cm)
An object is located in front of a biconcave lens whose focal length is 125 centimeter. Find where is the image located
Two long parallel wires each carry 2.8A in the same direction, with their centers 1.5cm apart.Find the magnitude of the force of interaction (per length) between the wires.
A conductor is suspended by two flexible wires has a mass per unit length of 0.04 kg/m. Find what is the required direction for the current
A 2.0-kg block slides along a rough horizontal surface. A force(P=6.0N) is applied to the block at a 30degree angle. find the magnitude of the force of friction acting on block
In a nuclear power plant the fuel rods last 3 yr before they are replaced. If a plant with rated thermal power 1.00 GW operates at 86.0% capacity for the 3 yr, what is the loss of mass of the fuel
a hockey puck leaves a player's stick with a speed of 9.9m/s and slides 32.0 m before coming to rest. Find the coefficient of friction between the puck and the ice
An experimental bicycle wheel is placed on a test stand so that it is free to turn on its axle. If a constant net torque of 6.00 N · m is applied to the tire for 5.00 s, the angular speed of the tire increases from 0 to 100 rev/min. The external t..
a coyote on jet skates chases a road runner. the coyotes acceleration is a constant 15 ms. if the coyote is 120 from
The speed of light in a material is 0.52×c. What is the critical angle (in degrees) of a light ray at the interface between the material and a vacuum
imagine that you spill a cup (250 g) hot water, initially at 75 C, onto the cold ground on a winter fay, Calculate the net change in the entropy of the universe due to this process, and comment on the result
two circular disks spaced 0.50mm apart form a parallel-plate capacitor. transferring 1.40e9 electrons from one disk to
A 1400 kg car has a maximum power output of 150 hp. How steep a hill can it climb at a constant speed of 74 km/h if the frictional forces add up to 700 N?
A frictionless spring of spring constant 500 N/m has one end attached to a vertical wall and the other end to a block of mass 3.0 kg, What is the maximum Elastic Potential Energy
two identical diverging lenses are separated by 6.0 cm. each lens has a focal length of -12 cm. an object is placed 10
A sign has a mass of 1050 kg, a height h = 1 m, and a width W = 4 m. It is held by a light rod of length 5 m that is perpendicular to a rough wall. What is the smallest value of the coefficient of friction
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