Questions
1 (a). Examine. with practicals examples, the general form of a particle undergoing sinmple harmonic motion...

1 (a). Examine. with practicals examples, the general form of a particle undergoing sinmple harmonic motion and carefully explain all the associated terms

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define schnell's law of reflection and refraction (based on Huygens law) for three different cases :...

define schnell's law of reflection and refraction (based on Huygens law) for three different cases : n1=n2, n1>n2,n1<n2 ( add drawing)

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How does the ideal disposition of the four forces in an aircraft relate to the nose-up...

How does the ideal disposition of the four forces in an aircraft relate to the nose-up or nose-down pitching moments? What are the difficulties that the pilot can face to maintain such an ideal disposition for each of the forces while cruising?

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A satellite of mass 1,500 kg is placed in a circular Earth orbit at a height,...

A satellite of mass 1,500 kg is placed in a circular Earth orbit at a height, h, above the surface. It is launched from Treasure Island in the SF Bay at 37 degrees latitude (north of the equator). 2465.98 10 , 6.37 10EarthEarthMxkgRx==ma) Derive Kepler’s Thrid Law from Newton’s Universal Law of gravity. b) If the orbital period of the satellite is 12 hrs, find the distance h above the Earth. c) What is the minimum energy required to put the satellite in orbit? Do not ignore the rotation of the Earth. d) What is the acceleration due to gravity at this height above the surface?p

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Rockets can be spin-stabilized; that is, they can fly straighter through space if they rotate around...

Rockets can be spin-stabilized; that is, they can fly straighter through space if they rotate around their long axis. Generally, 1 rotation per second is a good angular speed for spin-stabilization.

a. Assume the rocket acts like a solid cylinder. The rocket has a mass of 30000 kg (almost all of it fuel) and a radius of 1.00 m. Calculate the angular momentum of the rocket as it spins. Pay attention to units.

b. A problem arises because fuels for larger rockets are liquid. Due to the centripetal effect, the fuel is pushed to the outer skin of the rocket. So now the rocket acts more like a thin-walled hollow cylinder with a mass of 30000 kg and a radius of 1.00 m. Calculate the new angular velocity of this rocket, assuming that it is the same rocket as in part a. Describe what happened to the rocket’s spin.

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A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is...

A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.) Answer the following questions regarding the capacitor charged by a battery. For each statement below, select True or False.

With the capacitor connected to the battery, increasing d decreases Q.
After being disconnected from the battery, inserting a dielectric with κ will increase V.
After being disconnected from the battery, inserting a dielectric with κ will increase C.
With the capacitor connected to the battery, inserting a dielectric with κ will decrease U.
With the capacitor connected to the battery, increasing d increases U.
After being disconnected from the battery, decreasing d increases C.

answers that have been wrong: FTTFTT, FFTFTT, TFTFTT, TFTFTF

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A truck of mass M and a bike of mass m approach a stop sign on...

A truck of mass M and a bike of mass m approach a stop sign on a rainy day. As they approach the stopsign, both vehicles are travelling with speed vo. When their front tires are even with the stopsign, the drivers each engage their brakes as start to skid. Each tire has a coefficient of kinetic friction mu_k with the ground. Given M, m, vo, g, how far does each object slide into the intersection? In your skeptic section, pick reasonable values for M, m, mu_k (you can use g = 9.8 m/s^2) and interpret your answers. Is your answer reasonable?

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A material particle with mass M moves under the gravitational effect of the earth. Solve the...

A material particle with mass M moves under the gravitational effect of the earth. Solve the Hamilton-jacobi equation of the particle.

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The volume of a gas was increased by factor of two. What is the change in...

The volume of a gas was increased by factor of two. What is the change in its density?

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i) A circular coil with radius 20 cm is placed with it’s plane parallel and between...

i) A circular coil with radius 20 cm is placed with it’s plane parallel and between two straight
wires P and Q. The coil carries current Icoil = 0.5A . Icoil is in clockwise direction when viewed
from left side. Wire P is located 40 cm to the left of a circular coil and carries current Ip = 0.2A
while wire Q is located 80 cm to the right of the circular coil and carries current IQ = 0.6A. Both
Ip and IQ are in the same directions into the paper. Determine the resultant of magnetic field at
the centre of a circular coil from the top view.
[7 marks]

ii) If the current in wire P is out of the page, determine the resultant of magnetic field at the centre
of a circular coil. (3marks)

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Question 12 Briefly explain the following: (a) The Balmer jump (b) The Lyman limit (c) The...

Question 12

Briefly explain the following:

(a) The Balmer jump

(b) The Lyman limit

(c) The 4000Å break

(d) A forbidden transition

(e) The hydrogen hyperfine transition producing 21cm radiation

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A constant force acts on a 600kg mass for 68s. The velocity of the mass is...

A constant force acts on a 600kg mass for 68s. The velocity of the mass is 10m/s before the force is applied. Its final velocity is 44m/s. What change in momentum does the force produce?

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during a baseball game, a batter hits a foul ball down the left field foul line....

during a baseball game, a batter hits a foul ball down the left field foul line. while being hit 0.762 m above the ground, the ball was given a velocity of 33.53 m/s at an angle of 55 degrees above the ground. 5 seconds after being hit, the ball was seen clearing a 11.28 m high wall in left field.

a) what is the horizontal distance from home plate to the left wall?

b) what is the vertical distance of the ball above the ground as it travels over the wall?

Please show me how to do this, I'm having a rough time figuring it out.

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I need new and unique answers, please. (Use your own words, don't copy and paste), Please...

I need new and unique answers, please. (Use your own words, don't copy and paste), Please Use your keyboard (Don't use handwriting) Thank you..

talk in 500-520 words about (shear wave elastography)

Use your own words, don't copy and paste

Use your own words, don't copy and paste

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A mass resting on a horizontal, frictionless surface is attached to one end of a spring;...

A mass resting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. It takes 3.7 J of work to compress the spring by 0.14 m . If the spring is compressed, and the mass is released from rest, it experiences a maximum acceleration of 12 m/s2.

Find the value of the spring constant.

Find the value of the mass.

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