Answer:
Dry lubricants or solid lubricants are materials that, despite being in the solid phase, are able to reduce friction between two surfaces sliding against each other without the need for a liquid oil medium.
Explanation:
Answer:
Explanation:
An object is at rest along a slope if the net force acting on it is zero. The equation of the forces along the direction parallel to the slope is:
(1)
where
is the component of the weight parallel to the slope, with m being the mass of the object, g the acceleration of gravity, 
the angle of the slope
is the frictional force, with 
being the coefficient of friction and R the normal reaction of the incline
The equation of the forces along the direction perpendicular to the slope is
where
R is the normal reaction
is the component of the weight perpendicular to the slope
Solving for R,
And substituting into (1)
Re-arranging the equation,
This the condition at which the equilibrium holds: when the tangent of the angle becomes larger than the value of , the force of friction is no longer able to balance the component of the weight parallel to the slope, and so the object starts sliding down.
Answer:
Electrons accelerated to high velocities travel in straight lines through an empty cathode ray tube and strike the glass wall of the tube, causing excited atoms to fluoresce or glow.
Answer:
D. 3
Explanation:
First of all the mechanical advantage of a wedge is defined as the ratio of its slope length to its width.
Mathematically,
where,
IMA= Mechanical Advantage
L= slope length, and
w= width.
Given that,
slope length, L= 3.3 inches, and
width ,W= 1.1 inches
Then,
Mechanical Advantage, IMA
Answer:
The order of the waves are all messed up, and everything else is backwards. The order of the waves should be Radio, Micro, Infrared, Visible, UV, X-ray, and then Gamma Rays
Explanation:
In the order of Radio, Micro, Infrared, Visible, UV, X-ray, and then Gamma Rays, the wave length goes from shorter waves to longer, this is often confused in the way that shorter waves have more waves within a certain amount of time. The amount of waves per second is the frequency.
