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RUDIKE [14]
3 years ago
14

Is this equation balanced? 2HCl + CaCO3 → CaCl2 + H2O + CO2

Physics
1 answer:
Serggg [28]3 years ago
7 0

Answer:

Yes it is

Explanation:

the sum moles at the left side equals the sum of moles at the right side

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A current of 6.93 A 6.93 A in a long, straight wire produces a magnetic field of 4.15 μT 4.15 μT at a certain distance from the
natka813 [3]

Answer:

0.334 m

Explanation:

The magnetic field due to current in a straight thin wire, B, is given by

B = \dfrac{\mu_0 I}{2\pi R}

where \mu_0 is the permeability of free spave with value 4\pi\times10^{-7} and R is the distance from the wire.

R = \dfrac{\mu_0 I}{2\pi B}

Substituting the values from the question,

R = \dfrac{4\pi\times10^{-7}\times 6.93}{2\pi\times 4.15\times 10^{-6}}

R = \dfrac{2\times10^{-1}\times6.93}{4.15} = 0.334 \text{ m}

7 0
4 years ago
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A linear accelerator uses alternating electric fields to accelerate electrons to close to the speed of light. A small number of
diamong [38]

Answer:i

9E13 ELECTRONS

Explanation:

First we find the number of charges in two hrs

Which is - 2x 7200=- 14400NC

So no of electrons is now q/e

-144x10^-7/-1.6*10^-19

= 9*10^13

7 0
3 years ago
The question is “Which direction will the airplane move” plz help :,)
masha68 [24]
The answer would be that the plane would move upward and to the right! Hope this helps, message me if you need more help!
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7 0
4 years ago
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The gravitational force
vivado [14]
<span>b. weakens as 1/d, where d is the distance between objects.</span>
3 0
3 years ago
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On a distance-versus-time graph, _____.
babymother [125]

Answer:

A

Explanation:

The slope of the graph has the units of vertical axis divided by horizontal axis. This means that the slope of a distance vs time graph is distance/time, or velocity.

Slope is calculated by "rise over run" so C is incorrect.

Since the slope represents velocity, a constant slope equates to a constant velocity, hence B is incorrect. Same reasoning for D being incorrect: if the slope is zero, the object is not moving.

3 0
3 years ago
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