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An unknown element of mass 0.250 kg, initially at 95.0°C, is dropped into 0.400 kg of water (c = 4186 J/(kg•°C)) at 20.0°C contained in an insulated cup of negligible mass and specific heat. If the equilibrium temperature is 36.0°C, what is the specific heat of the unknown element?
An astroid of mass 2.1 x 10^15 kg splits apart. Asume the original astroid was at rest, what is the final velocity of the larger piece after the break, what was the intioal momentum of the system
The spacing between the plates of a 1.0x10^-6F capacitor is 0.05mm. what is the surface area of the plates
Suppose 0.380 kg of water initially at 45.0°C is poured into a 0.300 kg glass beaker having a temperature of 25.0°C. Calculate the final equilibrium temperature of the system
A wooden cylinder of length 2.0m and cross section 78cm^2 is suspended in vertical positionwith a string of length 2.5m. Find the linear density of the string
A 4x 11 swimming pool slopes linearly from a 1.20 depth at one end to a 3.80 depth at the other. What is the mass of water in the pool.
In an advanced laboratory class a student performs the photoelectric experiment. What is Planck's constant based on this measurement
q1. a boat with a flat bottom and its cargo weigh 6000n. the area of the boats bottom is 4m squared. how far below the
Light from a monochromatic source shines through a double slit onto a screen 5.0 m away, What is the wavelength of the incident light
A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Determine the specific heat of the unknown second sample
Teo point charges are on the x-axis. The first is located at -4 meters and has a charge of -6 coulombs. Where on the x-axis is the electric field zero
The displacement of an object moving under uniform acceleration is some function of time and the acceleration. Suppose we write this displacement as s=ka^mt^n, where k is the dimensional constant. Show by dimensional analysis that this expression ..
question1a fishing pole is 2.00 m long and inclined above horizontal at the angle of 20.0deg. a fish is pulling on it
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