Problem on distance to the moon from earth
The distance to the Moon from Earth is around 4 x 10^8 meters. About how long would it take a laser light beam from the Earth to travel to the Moon and back?
i) 6 minutes
ii) 3 minutes
iii) 1 minute
iv) 30 seconds
v) 3 seconds
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As a particle moves all along the x-axis, a force in the positive direction of the axis acts on it. The force is expressed by Fx = a/x2, where a > 0. Determine the work done in moving the particle from x = xi to x = xf in terms of the variables
A horizontal log merely barely spans a river, and it ends rest on the opposite banks. The log is uniform and weighs 2400 N. When a person who weighs 840 N stands on fourth of the way across the log from the left end, determine how much weight does
Create the coordinate system with positive y-axis projecting vertically upward from center of highway and x-axis crossing perpendicular to highway at ground level, positive axis to right.
A random sample of eight internal combustion engines having copper lead as a bearing material gave a sample mean shaft wear (.0001 in) of 3.72 and a sample standard deviation of 1.25.
(i) Determine the moment of inertia of the wheel? (ii) Determine the mass of the wheel? (iii) When the wheel begins from rest, determine its angular velocity after 5.00 s have elapsed, supposing the force is acting throughout that time?
find out (i) The translational kinetic energy of the center of gravity, (ii) The rotational kinetic energy around its center of gravity, and (iii) its net kinetic energy.
If repeated-measures study shows significant difference between two treatments with a = .01, then you can be sure that
If we suppose that vessel travels at the constant speed in still water and that river flows downstream at the constant speed, then river's speed of flow is how many mph?
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