1. The problem statement, all variables and given/known data
Vector a1 + vector a2 = 5*vector a3
Vector a1 - vector 12 = 3*vector a3
Vector a3 = 2i + 2j (i and j are the vector components)
Exp...
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a pulley is suspended by a cord with two masses attached. one mass is 1.2 kg. the second mass is 3.2 kg. the two masses are attached on different sides.
the question: determine the tension in this ...
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In the "Physics Forums" logo, what is the significance of the small white "S" inside the large blue "P" and the small white "A" inside the large green "F&q...
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1. The problem statement, all variables and given/known data
A car starts from rest at a stop sign. It accelerates at 2.0 m/s^2 for 6.0 seconds, coasts for 2.0 s, and then slows down at a rate of 1...
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1. The problem statement, all variables and given/known data
A simple pulley has two masses on either end, one M1 and one M2. It is easy to find the acceleration of the two masses, and the tension on...
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1. The problem statement, all variables and given/known data
A car's velocity as a function of time is given by Vx (t) = alpha + beta (t)^2, where alpha = 3.00m/s and beta = .100m/s^3.
Calculate t...
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1. The problem statement, all variables and given/known data
A vector in the xy plane has a magnitude of 25 and an x component of 12. The angle it makes with the positive x axis is:
A)26 degree
B)2...
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1. The problem statement, all variables and given/known data
Two vectors ahve magnitudes of 10 and 15. The angle between them when they are drawn with their tails at the same point is 65 degree. The ...
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1. The problem statement, all variables and given/known data
Zwiebach QC 5.2
Tau is the parametrization of a worldline. p is the relativistic momentum
Show that LaTeX Source CodeThe following code...
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1. The problem statement, all variables and given/known data
A certain vector in the xy plane has an x component of 4 and a y component of 10. It is rotated in the xy plane so its x component is doub...
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1. The problem statement, all variables and given/known data
hot air balloon travelling vertically upward at 2.2 m/s. at 25 m above ground, releases a package. Solve for t.
2. Relevant equations...
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1. An eagle is flying horizontally at 6.0m/s with a fish in its claws. It accidentally drops the fish. (a) How much time passes before the fish's speed doubles? (b) How much additional time would be r...
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A electron moving along the x axis has a position given by x = 18 te-2.5 t m, where t is in seconds. How far is the electron from the origin when it momentarily stops?
I am pretty sure that I have ...
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A ball of unknown mass is thrown straight up.
*maximum height reached in 5.78 seconds
*acceleration due to gravity 9.8 m/s2
Calculate initial velocity in m/s
Would the initial velocity be 9....
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I have been having trouble with the following question on my homework:
wheel A of radius rA = 15 cm is coupled by belt B to wheel C of radius rC = 22 cm. The angular speed of wheel A is increased f...
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Ok, this is my last study problem, I think I got it, but my answers seem a little odd...
1. The problem statement, all variables and given/known data
A rocket of length LaTeX Source CodeThe follo...
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I am majoring in applied math, but i would like to learn some EE, and maybe get a job as an engineer if i can. My question is, what are the most important EE classes, the ones that i should take as el...
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Two basketball players are essentially equal in all respects. (They are the same height, they jump with the same initial velocity, etc.) In particular, by jumping they can raise their centers of mass ...
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It's my firt time reading special relativity and this question bug's me . It is said that times runs slower at greater velocities .
Let's say I leave home in a space craft and fly for some time at 9...
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I am currently finishing up a list of schools I want to apply for a masters programs for fall of 08. My plan is to go through the masters program and if I make it through to apply to a PhD program. I...
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1. The problem statement, all variables and given/known data
I have the following problem
Assume that 30.0 cm^3 of gasoline is atomized into N spherical droplets, each with a radius of 2.00 x 10^-...
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1. The problem statement, all variables and given/known data
A ball is thrown straight up at ground level passes a height of 80.6m in 5.1s.
The acceleration of gravity is 9.8m/s squared. What was ...
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Hi all - I reposted this here, as I posted in the advanced forum on accident:
Here's the problem I am having trouble with:
A very long, solid insulating cylinder with radius "R" has a...
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1. The problem statement, all variables and given/known data
A charge of -6mC is placed at each corner of a square .1m on a side. Determine the magnitude and direction of the force on each charge.
u...
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1. The problem statement, all variables and given/known data
Find the acceleration reached by each of the two objects shown in Figure P4.49 if the coefficient of kinetic friction between the 7.00kg...
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