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I so wanted to answer this question. However, my answer is "Anonymous" as your post is Anonymous. There is no need for an Anonymous question in this category,

1 Answers Ā· Science & Mathematics Ā· 22/11/2020

Ā Ā First up... don't forget to choose aĀ BESTĀ answer... !! speed , that is tangential velocity,Ā v,Ā Ā isĀ :Ā Ā Ā Ā Ā Ā Ā Ā v =Ā ( 2Ļr ) * ( # rev )Ā /Ā t All the objects have theĀ sameĀ value for Ā 2Ļr,Ā just convert Ā rĀ to meters instead of cm beforeĀ any calculations...

1 Answers Ā· Science & Mathematics Ā· 09/11/2020

...39;d say velocity, because it is squared. But one could argue for radius, because it's in the denominator (and so small radii lead to big ...

1 Answers Ā· Science & Mathematics Ā· 10/11/2020

The cooled atoms have nothing to do with the answer. If you've calculated photons per second (and remember that ĀµW = ĀµJ/s), then you're done. photons/s = power (J/s) / energy per photon (J...

1 Answers Ā· Science & Mathematics Ā· 06/11/2020

mg tanĪø = mvĀ²/r vĀ²= r/m * mg tanĪø, but mass cancels v = ā(rg tanĪø) v = ā140*9.80665 * 0.3249 = 21.1m/sĀ ((76.0 kph)) Your answer is correct except for missing units.

2 Answers Ā· Science & Mathematics Ā· 31/10/2020

...vertical component = 26sin22 = 9.7 m/s (b) time, t = horizontal distance / horizontal component of speed = 27.4/24 = 1.1 s (c) ball's height, s = ut+Ā½gtĀ² ...where u...

1 Answers Ā· Science & Mathematics Ā· 27/10/2020

... 2. f = 3e8m/s / 550e-9m = 5.45e14 Hz (or s^-1) 3. Doppler for stationary source: f = fā * (c+v)/c 5.45 = 4.62*(3e8 + v) / 3e8 ignoring...

1 Answers Ā· Science & Mathematics Ā· 27/10/2020

...anything with a fist or whatever. Same problem. Yes, your body would need food and water at an accelerated rate... but ***not from your perspective...

3 Answers Ā· Science & Mathematics Ā· 26/10/2020

... Ā Ā Ā Ļ = torque in Nā¢m Ā Ļ = Ī±I torque required for that accel. Ā P = ĻĻ power to hold that speed with Ļ friction Ā Īø = Īøā + Ļāt + Ā½Ī±tĀ²...

1 Answers Ā· Science & Mathematics Ā· 26/10/2020

...Ā½*0.906rev/sĀ²*(0.193s)Ā² = 0.0748 revs C. For speeds , we need to convert the angular velocities to rads: v_t = 0.475*2Ļ rad/s...

2 Answers Ā· Science & Mathematics Ā· 31/10/2020

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