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3 years ago

Help pleaseeeee!! What is something that you would like to see a physicist develop in the future?

Physics

1 answer:

Semenov [28]3 years ago

7 0

Teleportation (artificial or natural over wormhole).

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A boy im50kg at rest on a skateboard is pushed by another boy who exerts a force of 200 N on him. If the first boy's

sergey [27]

Answer:

Time, t = 2 seconds

Explanation:

Given the following data;

Mass, m = 50 kg

Initial velocity, u = 0 m/s (since it's starting from rest).

Final velocity, v = 8 m/s

Force, F = 200 N

To find the time, we would use the following formula;

$F = \frac {m(v - u)}{t}$

Making time, t the subject of formula, we have;

$t = \frac {m(v - u)}{F}$

Substituting into the formula, we have;

$t = \frac {50(8 - 0)}{200}$

$t = \frac {50*(8)}{200}$

$t = \frac {400}{200}$

Time, t = 2 seconds

5 0

3 years ago

The pressure required for metamorphism can be generated by

Lana71 [14]

Pressure from the weight of overlying rock

3 0

3 years ago

An installer has 84 strap hangers in the truck. On a job, 32 straps are used on water supply lines, 29 on return lines and 15 on

Rama09 [41]

Answer:

12 straps

Step-By-Step Explanation:

84 - 32 - 29 - 15 =

52 - 29 - 15 =

23 - 15 = 12

btw this is supposed to be in maths category

If this helped, please consider picking this answer as the Brainliest Answer. Thank you!

3 0

3 years ago

A cyclist travelled 32 kilometers for both the 1st and 2nd hours. He took a 30 minute break to eat his lunch. He then travelled

Reika [66]

Answer:

The cyclist's average speed is 13.43 $\frac{km}{h}$

Explanation:

Speed is a quantity that expresses the relationship between the space traveled by an object and the time used for it. That is, speed is the magnitude that expresses the variation in position of an object and as a function of time, which would be the same as saying that it is the distance traveled by an object in the unit of time.

Average speed relates the change in position to the time taken to effect that change:

$speed=\frac{change in position}{time} =\frac{distance}{time}$

In this case:

total distance traveled= 32 km + 15 km= 47 km
total time= 3 hours that the cyclist travels + 30 minutes of rest = 3 hours + 0.5 hours (being 60 minutes equal to 1 hour, then 30 minutes equals 0.5 hours) = 3.5 hours

Replacing:

$speed=\frac{47 km}{3.5 h}$

and solving, you get:

speed= 13.43 $\frac{km}{h}$

The cyclist's average speed is 13.43 $\frac{km}{h}$

3 0

3 years ago

What is the difference between gross anatomy and microscopic anatomy?

Maurinko [17]

There are two major types of anatomy. Gross (macroscopic) anatomy is the study of anatomical structures that can be seen by the eye, such as the external and internal bodily organs. Microscopic anatomy is the study of tiny anatomical structures such as tissues and cells.

5 0

3 years ago

Read 2 more answers