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Romashka [77]
3 years ago
14

Type of machine. For each example, decide if it changes the size of the

Physics
1 answer:
maks197457 [2]3 years ago
8 0

Answer:

1. distance, direction

2. size, direction

3. size, distance

4. direction, size

5. distance, direction

6. direction, size

7. direction, size

8. size, distance

9. direction, distance

10. size, distance

Explanation:

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A 12.65 g sample of a radioactive substance is allowed to decay for 17.22 min. At that time, the sample weighed 3.115 g. What is
Mademuasel [1]

Answer:

8.61 min

Explanation:

original mass= 12.65

first half life = 12.65/2 = 6.325

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8 0
3 years ago
A wire with a length of 150 m and a radius of 0.15 mm carries a current with a uniform current density of 2.8 x 10^7A/m^2. The c
Mrac [35]

Answer:

The current is 2.0 A.

(A) is correct option.

Explanation:

Given that,

Length = 150 m

Radius = 0.15 mm

Current densityJ=2.8\times10^{7}\ A/m^2

We need to calculate the current

Using formula of current density

J = \dfrac{I}{A}

I=J\timesA

Where, J = current density

A = area

I = current

Put the value into the formula

I=2.8\times10^{7}\times\pi\times(0.15\times10^{-3})^2

I=1.97=2.0\ A

Hence, The current is 2.0 A.

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3 years ago
According to the myth, why did Pandora open the box that the gods told her never to open?
svet-max [94.6K]

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Pandora gave in to her curiosity .

4 0
3 years ago
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