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Mkey [24]
2 years ago
10

A soft, silvery-white metal combines with a yellow gas to form a white crystal-like solid. What can be said about this change? T

he change is a physical change because the yellow gas changed into a solid. The change is a physical change because a new substance was not formed. The change is not a physical change because the color of the metal changed. The change is not a physical change because a new substance was formed.
Physics
2 answers:
Mandarinka [93]2 years ago
5 0

Answer: it is D 2022 edge

Explanation:

snow_tiger [21]2 years ago
3 0

Answer:

The change is not a physical change because a new substance was formed.

Explanation:

the answer is d

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Integrated Science- 8th grade science
mart [117]

Answer:

"Why"

Explanation: A scientific law is a description of how the natural world behaves under certain circumstances.

7 0
3 years ago
Read 2 more answers
Three charges, q1 = +2.06 x 10-9 C, q2 = -3.27 x 10-9 C, and q3 = +1.05 x 10-9 C, are located on the x-axis at x1 = 0, x2 = 10.0
lisov135 [29]

Answer:

The resultant force on charge 3 is Fr= -2,11665 * 10^(-7)

Explanation:

Step 1: First place the three charges along a horizontal axis. The first positive charge will be at point x=0, the second negative charge at point x=10 and the third positive charge at point x=20. Everything is indicated in the attached graph.

Step 2: I must calculate the magnitude of the forces acting on the third charge.

F13: Force exerted by charge 1 on charge 3.

F23: Force exerted by charge 2 on charge 3.

K: Constant of Coulomb's law.

d13: distance from charge 1 to charge 3.

d23: distance from charge 2 to charge 3

Fr: Resulting force.

q1=+2.06 x 10-9 C

q2= -3.27 x 10-9 C

q3= +1.05 x 10-9 C

K=9-10^9 N-m^2/C^2

d13= 0,20 m

d23= 0,10 m

F13= K * (q1 * q3)/(d13)^2

F13=9,7335*10^(-8) N

F23=K * (q2 * q3)/(d23)^2

F23= -3,09 * 10^(-7)

Step 3: We calculate the resultant force on charge 3.

Fr=F13+F23= -2,11665 * 10^(-7)

3 0
2 years ago
Potential energy is defined as
Soloha48 [4]

Answer:

c

Explanation:

it is stored energy because it is built up in said object

4 0
3 years ago
A rock is thrown from a cliff and hits the ground five seconds later at a distance of 50 m from the cliff how high was a cliff
Iteru [2.4K]

Answer:

122.5m

Explanation:

d= 1/2 (9.8) (5) ^2

3 0
3 years ago
Suppose you are myopic (nearsighted). You can clearly focus on objects that are as far away as 52.5 cm away. You can clearly foc
Lilit [14]

Answer:

Explanation:

Image of distant object will be made at far point or at 52.5 so

object distance u = infinity

image distance v = - 52.5 cm

focal length required = f

Lens formula

1 / v - 1 / u = 1 / f

1 /  - 52.5 - 0 = 1 / f

f =  -52.5 cm

= -.525 m

Power P = 1 / f = -  1 / .525

= -  1.90

now , for eye with glass we shall find new near point .

v = ?

u = - 17.2 cm

f = -  52.5 cm

1 / v - 1 / u = 1 / f

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1 / v  = - 1 / 17.2 -    1 / 52.5

= - .05813 -  .019

= - .07713

u = - 12.96 cm

so new near point will be 12.96 cm

5 0
3 years ago
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