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marishachu [46]

2 years ago

7

Please help although I think I have the awnser but correct me if I’m wrong

1 answer:

iren2701 [21]2 years ago

7 0

I believe you got it correct already

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When I double displacement reaction takes place, one of the products must be_______.

sattari [20]

Answer:

the answer would be Salt

Explanation:

3 0

2 years ago

Read 2 more answers

6.2 x 10^18 is equal to<br><br> A one ohm<br> B. one coulomb<br> C. one volt<br> D. one ampere

zhannawk [14.2K]

<h3>Answer:</h3><h3>B.one coulomb</h3>

<h3>Explanation:</h3><h3>It takes an enormous number of electrons to equal one coulomb.In fact,it takes about 6.2x10¹⁸.Looking at this from the opposite perspective,one electron has a negative charge equal to -1.6x10¹⁹ coulombs.</h3>

5 0

2 years ago

A net force of 1.6×10−15 N acts on an electron over a displacement of 5.0 cm, in the same direction as the net force. (a) What i

Margaret [11]

Explanation:

It is given that,

Net force acting on the electron, $F=1.6\times 10^{-15}\ N$

Displacement, d = 5 cm = 0.05 m

(a) Let $\Delta E$ is the change in kinetic energy of the electron. It can be calculated using work energy theorem. Mathematically, it is given by :

$W=\Delta E$

$\Delta E=F\times d$

$\Delta E=1.6\times 10^{-15}\ N\times 0.05\ m$

$\Delta E=8\times 10^{-17}\ J$

(b) Initial speed of the electron, u = 0

Again using the work energy theorem as :

$E=\dfrac{1}{2}m(v^2-u^2)$

$E=\dfrac{1}{2}m(v^2)$

$v=\sqrt{\dfrac{2E}{m}}$

$v=\sqrt{\dfrac{2\times 8\times 10^{-17}}{9.1\times 10^{-31}}}$

$v=1.32\times 10^7\ m/s$

Hence, this is the required solution.

7 0

3 years ago

evablogger [386]

Answer:

radio waves electricity

5 0

2 years ago

At the bottom of a hill, a car has an initial velocity of +16.0 meters per second. The car is uniformly accelerated at -2.20 met

Kazeer [188]

Answer:

3) 52.5 m

Explanation:

d = v₁t + 1/2at²

d = 16 m/s (5s) + 1/2(-2.2m/s²) (5s)² = 52.5 m

4 0

3 years ago