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Zigmanuir [339]
3 years ago
13

Which of the following is a vector quantity?

Physics
1 answer:
SVEN [57.7K]3 years ago
7 0
<span>a.displacement. A vector quantity has both magnitude and direction. Displacement tells you the magnitude of the distance traveled as well as the direction of the distance.</span>
You might be interested in
Atoms of which pair of elements will form metallic bonds in a compound?
aliya0001 [1]

Answer:

B -- Cobalt and iron

Explanation:

<em>Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!</em>

3 0
2 years ago
The first law of thermodynamics states that ΔE= Q− W . Is this also a statement of the principle of conservation of energy? Yes,
ozzi

Answer:

Yes, the heat that flows into the system is used to change the internal energy of the gas and becomes work done by the piston.

Explanation:

First law of thermodynamics known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another.

The first law of thermodynamics states that the change in internal energy of a system equals the net heat transfer into the system minus the net work done by the system. In equation form, the first law of thermodynamics.

This is the first law of thermodynamics

ΔE= Q− W

ΔE= change internal energy of the system.

Q= heat transfer into the system

And

W= work done by the system.

Rewriting the equation

ΔE= Q− W

Q=ΔE +W

Show that the heat flowing l into the system is transferred to the internal energy of the system and the work done by the piston

So the third option is correct

3 0
2 years ago
4. What is the density of water?
shepuryov [24]

Answer:

the destiny of water is 997 kg/m^3, hope this helps :)

8 0
2 years ago
Read 2 more answers
Which latitude receives the most direct rays of the sun year round
Pie

Zero latitude gets the most direct sun all year around. That's the equator.

The picture you attached has nothing to do with this question.

8 0
3 years ago
speed of light is 3×10^8m/sec. the circumference equador is 4×10^4km. if light turns around equador for 5 min, how many tours ca
Nataliya [291]

Answer: 2250 tours

Explanation:

We have the following data:

Speed of light: c=3(10)^{8}m/s

Circumference of the equador: r=4(10)^{4}km \frac{1000 m}{1 km}=4(10)^{7}m

The time in which light turns around equator: t=5 min \frac{60 s}{1 min}=300 s

We need to find how many tours does light do around the equator in t=300 s

Let's begin by the expression of the speed, which is a relation between the traveled distance (d) and time:

c=\frac{d}{t} (1)

Isolating d:

d=c.t (2)

d=(3(10)^{8}m/s)(300 s) (3)

d=9(10)^{10}m (4) This is the distance light travels in 5 min.

Now we need to know to how many tours is this distance equivalent, we can know this by a Rule of three:

1 tour ---- r (circumference of the equator)

? tour ---- d

Then:

?=\frac{(1 tour)(d)}{r}

?=\frac{(1 tour)(9(10)^{10}m)}{4(10)^{7}m}

?=2250 tours This is the count of tours in 5 minutes.

8 0
3 years ago
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