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Marina CMI [18]
3 years ago
15

In order for exercise to be effective, it must substantially increase heart rate. True False

Physics
2 answers:
jek_recluse [69]3 years ago
8 0

Actually the answer was False, I just took the test. This was the only one I missed.

sweet [91]3 years ago
6 0
The answer is true. I just did it.

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Oxidation number is the charge.
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A straight wire 0.10 m long carrying a current of 2.0 A is at right angles to a magnetic field. The force on the wire is 0.04 N.
Vladimir79 [104]

Answer:

The strength of magnetic field is 0.2 Tesla.

Explanation:

Data from the question is

Length (L) of wire ; L=0.10 m

Current in wire ; I= 2.0 A

Force on wire ; F = 0.04 N

Angle = Right angle So, \theta\thita = 90^{o}

Now ,

We have to find the magnetic Field strength (B)

For this formula for Force on wire in magnetic field is

F = I \times B \times L \times sin(\theta)

Further modified as

B = \frac{F}{I \times L \times sin(\theta)}

Now insert values in the formula

B = \frac{0.04N}{2.0A \times 0.10 m \times sin(90^{0})}

B = 0.2 T

So, the strength of magnetic field is 0.2 Tesla.

8 0
3 years ago
What are the highest energy level electrons of an atom called?
Stolb23 [73]
Electrons that are the highest energy level is called Valence Electrons
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If the frequency of the wave is 100 hz, what is the period of the wave?.
Cerrena [4.2K]
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Time= 1/frequency
=1/100
=0.01
Explanation:

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