3 years ago

Sociologist use tools such as investigation and data collection to make their study more

Physics

1 answer:

In-s [12.5K]3 years ago

8 0

They use data that they collect in order to make their study more accurate.

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Lenses can be found in a variety of objects which example does not have a lens?

Burka [1]

Tbh ! All of them have lens but I would go with B.) Smart Phone

Hope This Helps !!!

4 0

3 years ago

Read 2 more answers

A proton has been accelerated from rest through a potential difference of -1350 V. What is the proton's kinetic energy, in elect

Luba_88 [7]

Answer:

1 eV = 1.60 * 10^-19 J work done in accelerating electron thru 1 V

KE (total energy) = 1350 ^ 1 eV (note proton goes from + to -)

KE = 1.60 * 10^-19 * 1350 = 2.16 * 10^-16 Joules

1/2 m v^2 = KE = 2.16 * 10^-16 J

v^2 = 4.32 * 10E-16 / 1.67 * 10-27 = 2.59 * 10^11

v = 5.09 * 10^5 m/s

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3 years ago

A Perspex container has a 6 cm square base and contains

crimeas [40]

Answer:

a) V = 252 cm³

b) Vs = 72 cm³

Explanation:

The volume of the water can be given by the following formula:

$Volume\ of\ Water = V = (Base\ Area)(Height)\\V = (Length)^2(Height)\\V = (6\ cm)^2(7\ cm)\\$

V = 252 cm³

The volume of stone can be given by the change in volume of the water when the stone is dipped into it.

$Volume\ of\ Stone = Vs = (Length)^2(Change\ in\ Height\ of\ Water)\\Vs = (6\ cm)^2(9\ cm - 7\ cm)\\$

Vs = 72 cm³

6 0

3 years ago

If the speed and mass of an object are doubled, which of the following is true?

Harman [31]

Answer:

A is true

Explanation:

Other all are wrong I guess

7 0

3 years ago

What is the work required for a penguin to push a box 2 meters with a force of 8 newtons?

choli [55]

Work done is given by product of force and displacement due to that force

So here we will have

$Work = Force \times displacement$

here we know that

$Force = 8 N$

$displacement = 2 m$

Now work done is given as

$W = 8\times 2$

$W = 16 J$

so it will do 16 J work to move the box

3 0

3 years ago