Answer:
D strengths and weakneses
Explanation:
Answer:
E) ΔP = F * R
Explanation:
Let's look at Ohm's law:
ΔV = I * R
where I is the electric current, ΔV is the potential difference and R is the resistance.
We can derive the relationship between pressure gradient (ΔP), blood flow (F), and resistance (R) by analogy, getting:
ΔP = F * R
or
F = ΔP/R
This means that the flow is proportional to the pressure difference and inversely proportional to the resistance.
Answer:
(a) The aspect of the upper string supporting the weight and the applied force
Student 1 is correct because the upper string is the source of support of the large weight and the force applied to the short string reacts at the support of the long string
(b) The aspect of Student's (2) reasoning that is correct is that the shorter piece of string will always break first, however, the statement is only true for sudden pull due to the increased force experienced by the shorter string from a more rapid change in momentum
(c) The aspect of Student 1's statement that is incorrect is the that the upper string will always break first
The aspect of Student 2's statement that is incorrect is the that the shorter piece of string will always break first
(d) A string will break when subject to a force equivalent to its breaking force. The force experienced by the string increases as the rate of pull (suddenness) increases and the suddenness increases inversely with the length of the string, as such the shorter lower string will break first from a sudden pull before the force of the pull is completely transmitted to the upper string. Whereby the lower string is slowly pulled, the force is evenly transmitted to the upper string which is then taking up the load of the weight and the applied force together and is likely to break first
Explanation:
answer
so unit of velocity is m/s
displacement=600m
5minutes should be converted to seconds
5×60=300 seconds
so,
velocity= displacement÷time
= 600m ÷300s
=2m/s or 2ms^-1
If you burn it a really long, the. It gets smaller, which is a physical change. Hope this helps!