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4 years ago

Examine the scenario.

Physics

1 answer:

Readme [11.4K]4 years ago

5 0

Answer:

C and D

Explanation:

From the right-hand rule, positively charged particles moving to the left in a perpendicular magnetic field, will experience an upward force. Also, negatively charged particles moving to the left will experience an upward force. This is because, the direction of the force is irrespective of the sign of the charge but on its velocity.

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What does 'change only one variable at a time' mean

matrenka [14]

Answer: to only change one factor in an experiment or test

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3 years ago

What are the two principle advantages of telescopes over eyes?

Stells [14]

Answer:

i) Telescopes can be used to view far distant objects but the human eye can't view far distant objects.

ii) Telescopes uses two convex lenses producing a magnified image while the human eye only possesses one convex lens (image seen are smaller than that viewed under telescopes)

Explanation:

The telescopes can be used to view far distant objects due to their presence of two convex lenses. The two convex lenses are the objective lens (lens closer to object) and the eye piece lens (lens closer to eye). The object to be viewed forms an intermediate image first before the final image is seen using the eye piece lens.

The human eye only possess one convex lens and as such cannot view far ranged objects.

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4 years ago

A resistor with R = 300 Ω and an inductor are connected in series across an ac source that has voltage amplitude 500 V. The rate

schepotkina [342]

Answer:

Explanation:

impedance z=(XL^2+R^2)^1/2

power across te resistor ==i^2r

286/300

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4 years ago

A student draws a picture of the products and reactants of a chemical reaction. What, if anything, is wrong with the drawing?

ASHA 777 [7]

The complete question is: A student draws a picture of the products and reactants of a chemical reaction. What, if anything, is wrong with the drawing?

A) The drawing is wrong because there are more chemicals on the products side.

B) The drawing is correct because there are 12 compounds on each side of the arrow.

C) The drawing is wrong because there are different compounds on each side of the arrow.

D) The drawing is correct because there are 12 atoms of each type on each side of the arrow.

Answer:

Option D is correct

Explanation:

In the diagram attached below, it can be seen that there are 12 atoms of element which combine with 12 atoms of another element forming a compound. For the drawing to be correct, there should be 12 atoms of each type of element on both the reactants as well as product side, which is the case. There cannot be imbalance in the number of atoms of different elements on the two sides for a chemical reaction to occur.

Hence, option D is correct.

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3 years ago

A gram molecule of a gas at 127 ° expands isothermally until its volume id doubled. find the amount of work done and heat absorb

Nadusha1986 [10]

A gram molecule of a gas at 127°C expands isothermally until its volume is doubled. Find the amountof work done and heat absorbed.

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4 years ago