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3 years ago

A zinc atom loses 3electron to become a zinc oin

1 answer:

6 0

It lost 3 electron, meaning IT will become an ion. Also, since it specifically LOST, it would be a cation, and gain a positive charge.

Answer: True

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A 6- F capacitor is charged to 90 V and is then connected across a 700- resistor. What is the initial charge on the capacitor

Lorico [155]

Answer:

540C.

Explanation:

A capacitor of capacitance C when charged to a voltage of V will have a charge Q given as follows;

Q = CV ----------(i)

From the question, the initial charge on the capacitor is the charge on it before it was connected to the resistor. In other words, the initial charge on the capacitor will have a maximum value which can be calculated using equation (i) above.

Where;

C = 6F

V = 90V

Substitute these values into equation (i) as follows;

Q = 6 x 90

Q = 540 C

Therefore, the initial charge on the capacitor is 540C.

7 0

3 years ago

01:28:29

Novosadov [1.4K]

Answer:

an inverse relationship

7 0

3 years ago

An electric car is being designed to have an average power output of 4,600 W for 2 h before needing to be recharged. (Assume the

MAVERICK [17]

Answer:

a)3312 x 10⁴ J

b)I = 57.5 A

c)9200 W

Explanation:

Given that

P =4600 W

Time t= 2 h = 2 x 3600 s= 7200 s

We know that

1 W = 1 J/s

Energy stored in the battery = P .t

=4600 x 7200 J

=3312 x 10⁴ J

We know that power P given as

P = V .I

V=Voltage ,I =Current

4600 = 80 x I

I = 57.5 A

The energy supplied = 4600 x 2 = 9200 W

7 0

3 years ago

Step 1, when solving a two dimensional, multi-charge problem, is to define the vectors. Please identify the next five steps, in

Maksim231197 [3]

Answer: The next 5 steps are.

step 2: Find the magnitude of vectors.

step 3: Calculate 'x' and 'y' components.

step 4: Sum the above obtained vector components.

step 5: Calculate the magnitude of Resultant Vector.

Step 6: Determine the direction of the resultant vector.

Explanation:

Let the two vectors be 'A' and 'B'.

Let A = $x_{1} \hat{i}+y_{1}\hat{j}+z_{1}\hat{k}$ and B = $x_{2} \hat{i}+y_{2}\hat{j}+z_{2}\hat{k}$

It is given that, when solving a two dimensional, multi-charge problem, is to define the vectors.

So, step 1 is to define the vectors A and B.

In step 2, we find the magnitude of the vectors by,

$|A|=\sqrt{x_1^2+y_1^2+z_1^2}$

$|B|=\sqrt{x_2^2+y_2^2+z_2^2}$

In step 3, we find the components 'x' and 'y'

Then in step 4, we sum the components. Now we get the Resultant vector (R).

In step 5, Calculate the magnitude of 'R' using the above formula to find magnitude.

In step 6, we determine the direction of 'R'.

4 0

3 years ago

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Which of the following properties refers to the colored powder resulting from rubbing a mineral against a harder surface?

Lelu [443]

The answer is
streak

4 0

3 years ago

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