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An aluminum cup contains 225 g of water and a 40 g copper stirrer, all at 27°C. A 470 g sample of silver at an initial temperature of 89°C is placed in the water. The stirrer is used to stir the mixture gently until it reaches its final equilibrium temperature of 32°C. Calculate the mass of the aluminum cup.
In g
The electric potential in a certain area is given as: V = 3x^2 + 5yz. what is the electric field in the area
Light of a wavelength 450 nm is incident on a sodium emitter in a photoelectric effect apparatus. Sodium is 2.3 eV, What is the stopping potential for the emitted electrons
A force of 1 N is the only horizontal force exerted on a block, and the horizontal acceleration of the block is measured. when the same horizontal force is the only force exerted on a second block, the horizontal acceleration is three times as..
You hit a 0.2 kg golf ball up at 40o from the horizontal. It travels for 4.86 s and stops on an elevated green 10 m above its initial height traveling down at an angle of 35.4o below the horizontal
A cylinder with a movable piston contains 12.1 moles of a monatomic ideal gas at a pressure of 1.5 × 105 Pa. What is the change in volume of the gas
On one of the shelves in your physics lab is displayed an antique telescope. A sign underneath the instrument says that the telescope has a magnification of 20, what is the focal length fe of the eyepiece
A cylindrical conductor has resistance of R0 = 200 ? (ohms). what's the value of the new resistance in ohms
An object is placed 60 cm to the left of a converging lens having a focal length of 35cm. Determine the position of the final image
Two charges are brought together until they are 90.0cm apart, causing the electric force between them to increase by a factor of exactly 6. What was their initial separation distance
A shopper in a supermarket pushes a cart with a force of 52 N directed at an angle of 25° below the horizontal. What is the net work done on the cart by all forces
A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.
Concept to find certain type of electronic devices & circuits.
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