Sunday
May 19, 2013

# Posts by Shaila

Total # Posts: 120

Physics - Newton's Law of universal gravitation
Describe how Newton used each of the following phenomena to support the law of universal gravitation a) the orbit of the moon b) kepler's third law

Physics - Cavendish experiment
Describe the objective, apparatus and results of the Cavendish experiment

Physics - Gravitational force
Find the gravitational force between earth and the sun. I am using the formula Fg = (G*m1*m2)/(r^2) where G = 6.67*10^-11 m1 = 6.0*10^24kg m2 = 2.0*10^30kg r = should i use the sun's radius or the earths (Rearth = 6.38*10^6; Rsun = 6.96*10^8) either way i use i am not gett...

Physics - banked curves
Sharp turns are banked more steeply because when turning the vertical component does not matter, however it is the horizontal component should be balanced otherwise the car skids on in the horizontal direction??

Physics - banked curves
On a highway, why are sharp turns banked more steeply than gentle turns?

Physics - Centrifugal force
A centrifugal force, if it existed, would be directed raidally outward from the centre of the circle during a circular motion. Explain why it feels as though you are being thrown outward when you are riding on an amusment park ride that causes you to spin in a circle.

Physics - Uniform circular motion
If you were swingin a ball on a string around in a circle in a vertical plane, at what point in the path would the string be the most likelt to break? Explain why In what direction would the ball fly when the string broke?

Physics - Uniform circular motion
What type of acceleration is associated with uniform circular motion?

Physics - maximum height of the projectile motion
Suppose you knew the maximum height reached by a proejctile. Could you find its launch angle from this information alone? If not, what additional information would be required? (No it is not enough, the initial velocity? i also think yes because the highest the angle can be is...

Physics - Range of projectile motion
What properties of projectile motion must you apply when deriving an equation for the range of a projectile? (is it the trignometric identity??)

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