Answer:
From the formula of force:
since AB and k are constants:
x is a constant of proportionality
• when force is 4N, separation distance is 1
therefore, equation becomes
when r is doubled, r becomes 2. find F:
Answer:
The answer is D.
Explanation:
They vibrate parallel to the wave.
During the propagation of a sound wave in air, the vibrations of the particles are most accurately represented as longitudinal. Longitudinal waves are waves in which the motion of the individual particles of the medium occurs in a direction that is parallel to the direction of energy transmission.
The layers form from sand dunes
The electric furnace will consume 9600 watt of power.
To find the answer, we need to know about the electric power.
<h3>What's the electric power?</h3>
- Electric power is defined as the product of voltage and current.
- Mathematically, power= V×I
- Its si unit is watt.
<h3>What will be the power consumed by an electric furnace that draws 40A with an applied voltage of 240V?</h3>
The power = 240×40 = 9600 watt
Thus, we can conclude that the power consumption of the electric furnace is 9600 watt.
Learn more about the electric power here:
brainly.com/question/13080026
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Answer:
a) moves down
b) moves down
c) level remains same
Explanation:
Given that the anchor is initially on the floating boat.
a)
In this condition initially the the volume of water 
displaced is to balance its weight.
Now,
We've, the density of steel 
and the density of water 
When the anchor is dropped into water:
The volume of water displaced be 
which will be equal to the volume of anchor since it is immersed into it.
...................(1)
So the level of water falls when the anchor is dropped into water.
b)
Now, when the anchor is thrown on the ground the water has now less weight to balance so the water level falls down.
c)
When the cork on the from the boat is dropped into the water and it still floats then it must displace same amount of water, hence there should be no change in the water level.
