Answer:
kg
Explanation:
the highr and jebad to kilogram mizans
Answer:
option 3, 4.3 m
Explanation:
In order to do this, we need to know some things.
First, the object is not moving, therefore the net torque, about any point is zero.
Second, we have an upward force of 71 N from the left (Wl) and an upward force of 96 N from the right (Wr).
Third, the distance from the left end to the center of gravity is L (Length of the object) - distance of right end (I will call this value x): L - x
And fourth, as the torque is zero, the expression to use is the following:
T = Wr * x - Wl * (L - x) = 0
WrX = Wl (L - x)
Solving for x:
96x = 71(10 - x)
96x + 71x = 710
167x = 710
x = 4.25 or 4.3 m
Answer:
a.The atomic radii increases from top to bottom within a group.
Explanation:
We know that
When we move from top to bottom in a group then the atomic radii increases When we move from top to bottom in a group then number of shell increases.
Therefore, the distance of electron in outermost shell from the nucleus is also increase.Hence, the atomic radii increases.
But when we move from left to right in a group then nuclear pull increases because number of electron increases in the same shell.
Therefore, size of atom decreases and atomic radii decreases.
Hence, the atomic radii increases as one moves from top to bottom within a group.
Answer:
7ev
Explanation:
The Energy of an incident light is given as E = hf;
Where h is Planks constant
f is frequency
Also.
E = Eo + K.E
Where Eo is work function and K.E is kinetic energy.
Hence substituting the given values,
E = 3ev + 2ev = 5ev
The frequency of the incident wave if it's doubled the Energy would be doubled since E is proportional to f with other elements been constant.
Hence :E = 10ev
But K.E = E -Eo
= 10ev - 3ev = 7ev
Maximum Kinetic Energy is 7ev.
The difference between the parts of the plot with positive slope and the parts with negative slope can be found below.
<h3>What is a slope?</h3>
A slope in a graph is the ratio of the vertical and horizontal distances between two points on a line. Slope shows both steepness and direction of values.
A slope can either be positive or negative depending on the relationship between the variables being plotted.
A positive slope means that the variable are directly related while the negative slope means that two variables are negatively related.
A positive slope further means that the line moves upward when going from left to right on the graph while with the negative slope, the line moves down when going from left to right.
Learn more about slope at: brainly.com/question/2491620
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