Answer:
Total number of lamps will be 4
Explanation:
We have given power of the lamp W = 400 watt
Potential difference across the lamp V=110 volt
We know that power is equal to 
So 
Total current is given 15 A
As it is given that lamps are connected in parallel so total current is the sum of current through each lamp
So number of lamp will be 
As the lamp can not be in negative
So total number of lamps will be 4
The correct answers are as follows:
<span>1) hydrogenous sediment
2)sand and gravel
3) They rapidly break down at surface temperatures and pressures.</span>
50(6)=300.
The ball traveled 300 meters in 50 seconds.
Hope this helps and please give brainliest!
From the concept of optics on a curvature of a spherical mirror, the proportion for which the focal length is equivalent to half the radius of curvature is fulfilled. Mathematically this is
Here,
f = Focal Length
R = Radius
Rearranging to find the radius we have,
Replacing with our values,
R = 2(13.8cm)
R = 27.6cm
Therefore the radius of the spherical surface from which the mirror was made is 27.6cm
<h2>Answer</h2>
The force will be doubled.
<h2>Explanation</h2>
Using Newton Law II,
<h3>F = ma </h3>
So it can be seen in the formula that force is directly proportional to mass and acceleration.
if mass is doubled ---> force will be doubled, keeping acceleration constant.
Similarly,
if acceleration is doubled ---? force is will be doubled, keeping mass constant.
<em>It is assumed that there is no friction, the object is in the air with no air resistance.</em>
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