Explanation:
In contrast, dissolving a covalent compound like sugar does not result in a chemical reaction. When sugar is dissolved, the molecules disperse throughout the water, but they do not change their chemical identity.
Answer:
The x-component of is 56.148 newtons.
Explanation:
From 1st and 2nd Newton's Law we know that a system is at rest when net acceleration is zero. Then, the vectorial sum of the three forces must be equal to zero. That is:
(1)
Where:
, , - External forces exerted on the ring, measured in newtons.
- Vector zero, measured in newtons.
If we know that , , and , then we construct the following system of linear equations:
(2)
(3)
The solution of this system is:
,
The x-component of is 56.148 newtons.
To find the slope of a line:
-- pick 2 points on the line
-- find the change in 'y' as the line goes from one point to the other
-- find the change in 'x' as the line goes from one point to the other
-- divide (the change in y) by (the change in x).
-- the quotient is the slope.
This is exactly the fraction in the picture, starting with "m = ".
For the line in the picture, let's take the starting point and the ending point.
-- the change in 'y' from beginning to end is 20 meters .
-- the change in 'x' from beginning to end is 5 seconds .
-- The slope is
(20 meters) divided by (5 seconds)
= (20 / 5) (meters/seconds)
= 4 meters per second .
Answer:
The final speed of the bicyclist is 15.44 m/s.
Explanation:
Given;
initial velocity, u = 0
time of motion, t = 4.8 s
distance covered, d = 37.0 m
The acceleration of the bicyclist is calculated as;
d = ut + ¹/₂at²
37 = 0 + ¹/₂(4.8)²a
37 = 11.52a
a = 37 / 11.5
a = 3.22 m/s²
The final speed of the bicyclist is given as;
v² = u² + 2ad
v² = 0 + 2(3.22)(37)
v² = 238.28
v = √238.28
v = 15.44 m/s
Therefore, the final speed of the bicyclist is 15.44 m/s.
Answer:
The principle of a potentiometer is that the potential dropped across a segment of a wire of uniform cross-section carrying a constant current is directly proportional to its length. The potentiometer is a simple device used to measure the electrical potentials (or compare the e.m.f of a cell).
Explanation:
I hope it will help you