Answer:
The answer is 1250 mm
Explanation:
The path that particles move in the spectrometer is semicircular. Each of the particles has a displacement of twice the radius (2r) from the entrance to where the film is hit. According to the exercise, if the separation between the two molecules is 0.25 mm, then the difference in the radius of the molecules is equal to 0.125 mm. The ratio of mass/radius is equal for molecules, and therefore is equal to:
m = q * B * r / v
m/r = constant
(m/r)CO = (m/r)N = (28.0106 u/r) = (28.0134 u/(r + 0.000125 m))
Clearing and solving r:
r = 1.25 m = 1250 mm
The correct answer for this question would be option A. Among the given options above, the one that has the highest viscosity would be corn syrup. When we say viscosity, this is the state of being thick, sticky and semifluid in consistency. Hope this is the answer that you are looking for.
Assuming your two trolleys stick together after the collision, your momentum equation would be M1V1+M2V2=(M1+M2)V3 and since V2 is 0, then 2x2=(2+2)V3, thereore the final velocity would be 1, wich would make the final momentum 4
Lets do the sum of the forces about the elbow joint.
Fm = Force of Muscle; Fe = Force Elbow; Fb = Force Ball
Sum Force about Joint = (-2.5)Fm + 12.5Fe + 30Fb = 0
(-2.5)Fm + 12.5(2.8) + 30(6.9) = 0
Fm = 96.8kg
Fm = 96.8 * 9.8 = 948.6N
Do you understand why the -2.5 is negative?
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Because I put the origin at the joint. So when you go left it is negative and when you go right it is positive. </span>
