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Lerok [7]
3 years ago
5

Determine the activity of the sample of cerium when the sample was 80 seconds old

Physics
1 answer:
Artemon [7]3 years ago
8 0

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Two long, parallel wires are separated by 2.2 mm. Each wire has a 32-AA current, but the currents are in opposite directions. Pa
Alex

Answer:

B=1.1636*10^{-3}T

Explanation:

Given data

d_{wires}=2.2mm=0.022m\\ I_{current}=32A\\

To find

Magnitude of the net magnetic field B

Solution

The magnitude of the net magnetic field can be find as:

B=2*u\frac{I}{2\pi r}\\ B=2*(4\pi*10^{-7}  )\frac{32}{2\pi (0.022/2)} \\ B=1.1636*10^{-3}T

3 0
3 years ago
Which of the following best describes the function of a plant's flowers?
noname [10]

Answer: The function of a plant's flower is reproduce. Since the flowers are the reproductive organs of plant, they mediate the joining of the sperm, contained within pollen, to the ovules contained in the ovary.

Explanation:

8 0
3 years ago
PLZ HELP!!!!
zavuch27 [327]

Answer:

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Explanation:

Hope that helped lol!

8 0
2 years ago
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Which products do you think required scientific knowledge to develop? Check all that apply.
gregori [183]
I think all of the above
6 0
3 years ago
Read 2 more answers
An arrow is shot straight up in the air at an initial speed of 15 m/s. After how much time is the arrow heading downward at a sp
Greeley [361]

Answer:

2.35 seconds

Explanation:

Remark

This is a question where direction matters.  Let us call down + and up minus. It won't matter. The answer will be the same.

Formula

a = (vf - vi)/t

Givens

a = 9.8 m/s^2

vi = - 15 m/s

vf = 8m/s

Solution

9.8 = (8 - - 15)/t                 Multiply both sides by t

t * 9.8 = 23                       Divide by 9.8

t = 23/9.8

t = 2.35 s

7 0
3 years ago
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