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3 years ago

Explain the main difference between mixtures and compounds

1 answer:

8 0

The different substances are not chemically joined together. Each substance in themixture, keeps its own properties. The compound has properties different from the elements it contains. Each substance is easily separated from the mixture.

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Please someone helppp me.. I will mark as brainliest.

Mademuasel [1]

Answer:

b) G.P.E = Mgh

300j = M x 10 m/s² x 15 m

300 j/ 10 m/s² x 15 m = M

300j/ 150 s² = M

2kg = M

c) K.E = 1/2 m v²

K.E = 1/2 (50) (50)²

K.E = 1/2 (50) (2500)

K.E= 125000/2

K.E = 625 000 J

4 0

3 years ago

Identical isolated conducting spheres 1 and 2 have equal charges and are separated by a distance that is large compared with the

scoundrel [369]

Answer:

F = 0.1575 N

Explanation:

When the third sphere touches the first sphere, the charge is distributed between both spheres, then now the first sphere has only half of his original charge.

In this moment then

Sphere one has a charge = Q/2

Sphere three has a charge = Q/2

Now when the third sphere touches the second sphere again the charge is distributed in a manner that both sphere has the same charge.

How the total charge is Q = Q/2 + Q = 3/2Q, when the spheres are separated each one has 3/4Q

Sphere two has a charge = 3/4Q

Sphere three has a charge = 3/4Q

The electrostatic force that acts on sphere 2 due to sphere 1 is:

F = $\frac{kQ_{1}Q_{2} }{r^{2} }$

F= $\frac{K(Q/2)(3Q/4)}{r^{2} }$

how $\frac{KQ^{2} }{r^{2} }$ = 0.42

Then

F = $\frac{0.42*3}{8}$

F = 0.1575 N

3 0

3 years ago

Does pressure change faster as you move horizontally or vertically? explain reasoning

ANTONII [103]

Answer:

Vertically

Explanation:

Pressure changes faster as we move vertically because as we go to the height from the surface of the earth. The density of air becomes lesser in comparison with the surface of the earth. So, as we move vertically pressure moves faster than in comparison with the vertical movement.

The best example that describes the above statement is the hill station.

3 0

3 years ago

A 0.5kg pair of shoes weigh 0.3N on Pluto, what is the pull of gravity there?

lara [203]

Answer:

g= 0.6 m/s2

Explanation:

F = Mg

0.3 = 0.5g

g= 0.3/0.5

7 0

3 years ago

Folded layers of rock can form a wavelike pattern of troughs and crests. The layers near the crest (i.e. the upward fold) form A

Dennis_Churaev [7]

Answer:

C) An anticline

Explanation:

An anticline is an arch-like and convex kind of fold that forms near the crest.

6 0

3 years ago