Answer:
Since there are hundreds of nails, instead of puncturing your skin the nails actually support you.
Explanation:
If you step on the point of a nail, your foot exerts a tremendous amount of pressure on the nail's tiny point. As a result, the point can go straight through your foot. But a bed of nails has lots of points that are close together -- there's a lot of surface area for the body to cover. Hundreds of nails support the weight of your body instead of just one. Typically, your body doesn't exert enough pressure on any one nail for it to break the skin. You can even place a second bed on top of you and break a cinderblock on it. The resulting force is distributed over all of the nails, so you shouldn't be injured.
Answer:
Time taken for the car to travel a distance of 4.50 m = 1.40 seconds
Explanation:
velocity of toy car = 3.21 m/s
distance travelled by toy car = 4.50 m
Time = ?


Therefore, the time taken for the car to travel a distance of 4.50 m = 1.40 seconds
Explanation:
A.) If two in-phase waves arrive simultaneously at a point, their amplitudes add up.
(a) The emf induced in the wire is 0.112 V.
(b) The direction of the current will into the page.
(c) The polarity of A will be positive and L will be negative.
(d) The current flowing through the wire is 0.224 A.
<h3>
EMF induced in the wire</h3>
The emf induced in the wire is calculated as follows;
EMF = BLv
EMF = (8 x 10⁻²) x 0.2 x 7
EMF = 0.112 V
<h3>Direction of the current</h3>
Since, the magnetic field is out of the page, the current will follow counter clockwise and will point into the page.
<h3>Polarity of point A and point L</h3>
The current is flowing counter currently, hence the polarity of A will be positive and L will be negative.
<h3>Current through the wire</h3>
V = IR
I = V/R
I = (0.112)/0.5
I = 0.224 A
Learn more about current here: brainly.com/question/24858512
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Rub a balloon on a woolen fabric to pick up some electrons, to make the balloon negatively charged, and stick them to a wall, which would be positively charged to make them stick.
Opposites attract and when you stick a negatively charged objects to positively charged objects, they tend to stick together. When you pick up electrons, it increases the number of electrons which will make the object negatively charged.
Note: The first part of the answer is a single sentence. The problem says in a complete sentence, so just in case that you need only one sentence you can take the first part. If you can add in more than a sentence, you can put in more from the second paragraph.