Answer:
Explanation:
From the question we are told that:
Force P=88Ib
Mass of crate M_c=210Ib
Generally the equation for Frictional force F is mathematically given by
with 
Therefore since Static Friction supersedes applied force body remains at rest.
Frictional force =88Ib (negative)
Answer:
I = 18 x 10⁻⁹ A = 18 nA
Explanation:
The current is defined as the flow of charge per unit time. Therefore,
I = q/t
where,
I = Average Current passing through nerve cell
q = Total flow of charges through nerve cell
t = time period of flow of charges
Here, in our case:
I = ?
q = (9 pC)(1 x 10⁻¹² C/1 pC) = 9 x 10⁻¹² C
t = (0.5 ms)(1 x 10⁻³ s/1 ms) = 5 x 10⁻⁴ s
Therefore,
I = (9 x 10⁻¹² C)/(5 x 10⁻⁴ s)
<u>I = 18 x 10⁻⁹ A = 18 nA</u>
The question to the above information is;
What is the best use of an atomic model to explain the charge of the particles in Thomson's beams?
Answer;
An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to remove.
Explanation;
-Atoms are comprised of a nucleus consisting of protons (red) and neutrons (blue). The number of orbiting electrons is the same as the number of protons and is termed the "atomic number" of the element.
J.J. Thomson discovered the electron. Atoms are neutral overall, therefore in Thomson’s ‘plum pudding model’:
- atoms are spheres of positive charge
- electrons are dotted around inside
For the answer to the question above, if your question is a lever with a pivot and which sounds more likely ...then I would say from the principle of moments: F1*d1=F2*d2
<span>given F1=high and F2=low ---> d1 must be low and d2 high for the equations to be balanced. </span>
<span>So the answer is simply: Inversely</span>
Answer:
The the coefficient of kinetic friction between the horizontal surface and the block is 0.536.
Explanation:
Given that,
Spring constant = 105 N/m
Mass of block = 2.00 kg
Compress = 0.100 m
Distance = 0.250 m
We need to calculate the coefficient of kinetic friction
Using relation between friction force and restoring force
Put the value into the relation
Hence, The the coefficient of kinetic friction between the horizontal surface and the block is 0.536.
