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Question1
A guitar string is 90 long and has the mass of 3.4. The distance from a bridge to the support post is, and string is under a tension of 520.
What are frequencies of the fundamental and first two overtones?
Question2
Yellow light of wavelength 583 nm is used to view the object under a microscope. The objective lens diameter is 8.55 mm.
(a.) What is a limiting angle of resolution?
(b.)Assume it is possible to use visible light of any wavelength. What colour have to choose to give the smallest possible angle of resolution, and what is the angle?
(c.)Assume water fills the space between an object and an objective lens. What result does this change have on the resolving power as 583 nm light is used?
Question3
The particles in nucleus of an atom are approximately 1.00×10^−15 m apart, even as the electrons in an atom are about 1.00×10^−10 m from nucleus.
Compute an electrical repulsion between two protons in a nucleus if they are 1.50×10−15 apart.
The specific heat of mercury is 138 J/kg Co Determine the latent heat of fusion of mercury using the following calorimeter data: 1 kg of solid Hg at its melting point of -39.0º C is placed in a 0.620 kg aluminium calorimeter with 0.40 kg of water ..
The hot-reservoir temperature of a Carnot engine with 26.0 % efficiency is 70.0 ?C higher than the cold-reservoir temperature. What is the cold reservoir temp
The speed of the ball at the top of the circle is 12.9 m/s. The acceleration of gravity is 9.8 m/s2 . If the ball is released at the bottom of the circle, what is its speed upon release
How much work done against force of gravity
The starter motor of a car engine draws a current of 200 A from the battery. The copper wire to the motor is 4.90 mm in diameter and 1.2 m long, How much charge passes through the starter motor
Timberland’s incremental tax rate is 30%. Prepare a budgeted income statement assuming that Timberland sells 2,500 tons. Illustrate what is the contribution margin per ton?
Two small plastic spheres each have a mass of 1.9g and a charge of -60.0nC, By what factor is the electric force on a sphere larger than its weight
A string on a guitar vibrates at 420 Hz. If the tension on the string is 102 N, what is the mass of the string if the portion that vibrates is 63.7 cm long
A bottle has a mass of 27.00g when empty and 93.90g when filled with water. What is the specific gravity of this other fluid
If 5.20 moles of a monatomic ideal gas at a temperature of 300 K are expanded isothermally from a volume of 1.11 L to a volume of 3.53 L
Suppose a 0.250-kg ball is thrown at 15.0 m/s to a motionless person standing on ice who catches it with an outstretched arm, Calculate the final linear velocity of the person
A properly motivated kangaroo can jump over an object. what is the velocity of the kangaroo, just when it returns to the ground
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