Hi there!
For an object on an incline with friction being pulled, the following forces are present.
- Force due to Gravity
- Force due to Friction
- Force due to tension
The force due to friction opposes the force due to gravity which would cause the object to slide down. (The force due to friction acts up the incline). Additionally, the force due to the rope is also upward.
Let up the incline be positive, and down the incline be negative.
Doing a summation of forces:
For the crate to be moving at a constant velocity, there is NO net force acting on the crate, so:
Now, we can express each force as an equation.
Force due to tension:
Force due to gravity:
- On an incline, this is equivalent to the SINE component of its weight. (Force of gravity is STILL THE WEIGHT, but on an incline, it contains a horizontal component that contributes to the net force)
This is expressed as:
Force due to friction:
- Equivalent to the normal force and coefficient of friction. The normal force is the VERTICAL component of the object's weight, so:
Now, plug these expressions into the above equation.
Mg = 245 N (weight). Plug in all values:
The normal force is equivalent to the vertical component (PERPENDICULAR TO THE INCLINE) of the weight (cosine), so:
Answer:
Atoms are electrically neutral because there are an equal number of protons in the nucleus and In the cloud around the nucleus.
Explanation:
- The atoms that are the building block of matter consist of protons, neutrons, and electrons.
- The protons are positively charged and the electrons are negatively charged particles.
- The neutrons are negatively charged particles.
- The atoms in its stable natural state consist of an equal number of protons and electrons.
- Thus an atom has a neutral charge in its natural state.
Answer:
I'm not really sure as far as cell phone towers, but 5G hasn't published any safety tests, so we don't know for sure whether or not this would be harmful/cancer causing. The lack of evidence in either direction may be why we can't say definitively that it is safe or not harmful. Hope this helps.
Explanation:
The fact that a double convex lens is thicker across its middle is an indicator that it will converge rays of light that travel parallel to its principal axis. A double convex lens is a converging lens. A double concave lens is also symmetrical<span> across both its </span>horizontal<span>and vertical axis.
This is from google btw.</span>
Answer:
0.00956770833 T
Explanation:
q = Charge of electron = 
m = Mass of proton = 
a = Acceleration = 
v = Velocity = 
Magnetic field is given by
The magnetic field is 0.00956770833 T
