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3 years ago

Lighting is the movement of?

Physics

1 answer:

larisa [96]3 years ago

5 0

Explanation:

Movement:refers to the changing in the lights whether it be a change in intensity, color or direction of origin.

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HELP ITS DUE IN 4 MINUTES

alexira [117]

Answer:

the nephew

Explanation:

because we need to First find the trails that is on top of all the others in order to find who was the last to leave, since the person that was last to leave would most likely step on another person's trail that has been theirs before them.

by looking at this picture I noticed that the butler's footprint was the latest one but the dogs footprint steps over it therefore making it the last to leave, and the person who owns a dog is her nephew so therefore the nephew is the one that stole the butterfly trophy.

7 0

3 years ago

a bowling ball and a bag of potato chips are dropped at the same time from a tall on Earth , which hits the ground first ?

malfutka [58]

Isn’t it a bowling ball cause it’s the heaviest so it likely to go faster and hit the ground .

5 0

3 years ago

Read 2 more answers

A golf ball (mass 0.045 kg) is hit with a club from a tee. The plot shows the force on the ball as a function of time in millise

almond37 [142]

Answer:

16.3 m/s

Explanation:

We are given that

Mass of golf ball=m=0.045 kg

We have to find the speed right after the hit.

$b_1=(16-1)\times 10^{-3}=15\times 10^{-3} s$

$b_2=(12-6)\times 10^{-3}=6\times 10^{-3} s$

Force,F=70 N

Change in momentum=Area of trapezium

Area of trapezium,A= $\frac{1}{2}(b_1+b_2) h$

Using the formula

$m(v-u)=\frac{1}{2}(15+6)\times 10^{-3}\times 70$

$0.045(v-u)=\frac{1}{2}(21)\times 10^{-3}\times 70$

$v-u=\frac{1}{2}\times \frac{1}{0.045}\times 21\times 10^{-3}\times 70$

$v-u=16.3$

Initial velocity of golf ball=u=0

$v-0=16.3$

$v=16.3 m/s$

5 0

3 years ago

There are initially No nuclei in a radioactive source. After a time interval of three half-lives, what is the number of nuclei t

ladessa [460]

The number of nuclei that have decayed after three half-lives is 12.5% of the original mass.

<h3>What is half live of radioactive isotope?</h3>

The half life of a radioactive isotope is the time taken for the element to decay to half of its original mass.

<h3>Number of nuclei decayed after 3 half lives</h3>

N = N₀/(2³)

N = N₀/8

N = 0.125N₀

N = 12.5% of N₀

where;

N is n number of nuclei that have decayed after 3 half lives
N₀ is the original mass

Thus, the number of nuclei that have decayed after three half-lives is 12.5% of the original mass.

Learn more about half life here: brainly.com/question/10525285

#SPJ1

6 0

2 years ago

A bicycle wheel is rotating at 49 rpm when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration

raketka [301]

In 9 sec, it increases the angular velocity by (0.45 x 9) rad/s which will give us 4.05 rad/s
Now get the angular velocity and divide it 2pi = 4.05 by 2(pi) to give how many revolutions 4.05 rad is equivalent to = 0.6446 rps
Them, multiply this by 60 to get it from rps to rpm increase (0.6446 x 60)=38.676 rpm
Add this and the starting revolution frequency of 49 rpm to give: (49 rpm + 38.676 rpm) = 87.6760 rpm

6 0

4 years ago

Read 2 more answers