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3 years ago

Consider the table below. Which of the following data sets depict an accelerating object? Mark all that apply.

Physics

1 answer:

Gre4nikov [31]3 years ago

7 0

Answer:

A and B

Explanation:

The data sets that depict an accelerating object is Data Set A & Data Set B.

The both data sets show that the body is accelerating. Also, they show that the body started from rest (0m/s) at a 0sec.

Data Set A shows a non-constant acceleration which has changing amount of velocity with change in time. While Data Set B shows a constant acceleration which has constant amount of velocity with change in time.

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How many electrons will constitute 2A current in unit time

soldi70 [24.7K]

Answer:

2 charges of electron (2C)

Explanation:

I = Q/t

2 = Q/1

Q = 2×1= 2C

Q = 2 charge of electron

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3 years ago

Valence electrons determine an atom’s __________. a. mass c. atomic number b. chemical properties d. period Please select the be

Lemur [1.5K]

Hello,

Here is your answer:

The proper answer to this question is option B "<span>chemical properties".

Here is how:

</span>Electrons determine a atoms chemical properties mainly what its made of.

Your answer is B.

If you need anymore help feel free to ask me!

Hope this helps!

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2 years ago

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choli [55]

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natita [175]

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3 years ago

An RV is traveling 60 km/h along a highway. A boy sitting near the driver of the RV throws a ball to another boy at the back end

alina1380 [7]

Answer:

Speed of the ball relative to the boys: 25 km/h

Speed of the ball relative to a stationary observer: 35 km/h

Explanation:

The RV is travelling at a velocity of

$v_{RV}=+60 km/h$

Here we have taken the direction of motion of the RV as positive direction.

The boy sitting near the driver throws the ball back with speed of 25 km/h, so the velocity of the ball in the reference frame of the RV is

$v_B = -25 km/h$

with negative sign since it is travelling in the opposite direction relative to the RV. Therefore, this is the velocity measured by every observer in the reference frame of the RV: so the speed measured by the boys is

v = 25 km/h

Instead, a stationary observer outside the RV measures a velocity of the ball given by the algebraic sum of the two velocities:

v = +60 km/h + (-25 km/h) = +35 km/h

So, he/she measures a speed of 35 km/h.

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2 years ago