
I need help answering my lab report questions. The questions are highlighted yellow. I attached my lab report data, also a document with extra help for the questions, and the lab manual just in case t

A piece of aluminum has a volume of 2.26 x 10^3 m^3. The coefficient of volume expansion for aluminum is B= 69 x 10^6(C degrees)^1. The temperature of this object is raised from 29.8 to 425 degrees

A bowl, of radius of curvature R, rests on a rough horizontal table. Show that the bowl is in stable equilibrium about its bottom center point as long as the center of mass of the material stacked in

A 2 kg mass bounces on the end of a spring completing one period every 2 seconds. What is the spring constant of the spring?

A grating spectrometer is used to resolve third order peaks from two wavelengths of 1 = 525.00 nm and 2 = 525.65 nm. What is the minimum number of slits this grating must have to resolve these wavel

An object stretches a spring 4 inches in equilibrium. Find its displacement for t > 0 if it's initially displaced 36 inches above equilibrium and given a downward velocity of 2 ft/s

1 particle at a distance "s" above the Earth's surface was projected in parallel to the north axis at a speed "x". a) What is the time it remains in the air? b) Figure out the coordinates when it hits

A critically damped oscillator with natural frequency starts out at position x_o(xnot) > 0. What is the maximum initial speed (directed towards the origin) it can have and not cross the origin?

A beam of light in air strikes a piece of glass with an angle of 76.5 degrees and is partially reflected and partially refracted. The angle of reflection is twice the angle of refraction. Calculate th

A mass m oscillates on a spring with spring constant k. The amplitude is d. At the moment t = 0, when the mass is at position x = d/2 and moving to the right, it collides and sticks to another mass m.
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Sample Questions
 The Earth’s rate of rotation is constantly decreasing, causing the day to increase in duration. In the year 2000 the Earth takes about 0.548 s longer to complete 365 revolutions than it did in the year 1900.
 (a) What is the average angular acceleration of the Earth?
 (b) If this average acceleration remains constant, in what year will the Earths rotation come to rest?
1. Can you show me step by step how to solve this problem?:
 A spherical balloon is made from a material whose mass is 3.00kg. The thickness of the material is negligible compared to the 1.5m radius of the balloon. The balloon is filled with helium (He) at a temperature of 305degrees K and just floats in the air, neither rising nor falling. The density of the surrounding air is 1.19kg/m^3. Find the absolute pressure of the helium gas
2. I do not understand this Ideal Gas Law and Kinetic Theory question. Can you help me set it up?