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Home >All Categories > Science & Mathematics >Physics >Open Question Pandu Member since:July 31, 2009Total points:94 (Level 1)Another thing. I know Gravity affects time. So what are the combined effect of speed and gravity on timeAnswer Question

by LeAnne Member since:June 15, 2006Total points:107,320 (Level 7)The dilation of time would not be felt even at 99.999% the speed of light - you would experience time just as you do on the surface of the earth. However, if you were to send a message back to earth, your 30 minute message (by your clock) would drag on for hours on earth.
Gravity and acceleration have the exact same effects concerning physical laws.

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A 2 kg object is attached to 5 m long string. The object is pulled back and up, until the rope makes an angle 42° from vertical. The object is released and swings freely with no air resistance.

What is the velocity at the lowest point?
What is position and velocity at time = 1.0 second?

At this angle, The period equation of a pendulum does not determine the time for one cycle.

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i have a physics write up to do for school, and i'm stuck with calculating the theoretical velocity, and the experimental velocity??

the object is travelling down an incline, we have u, t, s, h, theta, and exp/theo. acceleration.
is there specific formulas to use for theoretical and experimental velocity, or do you just change the numbers you put in, and use the same formula for both?

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A 3.00-kg object traveling 20.0 m/s west collides with a 5.00-kg mass object traveling 12.0 m/s west. The collision is perfectly elastic, what is the velocity of the 3.00-kg object after the collision?

I have tried 12 m/s west which is wrong,
the only options are
1) 8m/s west
2) 20m/s east
3) 10m/s west
please help!!! thank you very much

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Home >All Categories > Science & Mathematics >Physics >Open Question Alana Member since:February 08, 2011Total points:116 (Level 1)A 3.0 kg, 40 cm diameter turntable rotates at 80 rpm on frictionless bearings. Two 400 g blocks fall from above, hit the turntable simultaneously at opposite ends of a diagonal, and stick. What is the turntable's angular velocity, in rpm, just after this event?Answer Question

Be the first to answer this question.

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I can't answer when & how question - but would ask U this:
why wasn't this question asked about "T" or "a" in trigonometry?

ie the use of Greek symbol/s for angular variables start in a high school student's 'career' *prior to* physics :>)

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