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Yuri [45]
3 years ago
7

How many meters do you cover in a 10 km (10-K) race? 

Physics
1 answer:
tester [92]3 years ago
8 0
10,000 meters: 1,000 meters in every kilometer.
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True or false question scientists can predict when an earthquake will occur
Tanya [424]

Answer:

False

Explanation:

Neither the USGS nor any other scientists have ever predicted a major earthquake. USGS scientists can only calculate the probability that a significant earthquake will occur in a specific area within a certain number of years.

6 0
2 years ago
A magnetic B field of strength 0.4 T is perpendicular to a loop with an area of 1 m2. If the area of the loop is reduced to zero
Norma-Jean [14]

Answer:

The magnitude of the induced e.m.f is 571 mV

Explanation:

Given;

magnetic field strength, B = 0.4T

area of the loop, A = 1m²

time = 0.7s

Since the angle of inclination of the magnetic field, then the direction of the induced e.m.f, θ = 0

According to faraday's law; the induced emf is directly proportional to the rate of change of flux.

Thus, magnitude of the induced e.m.f is given as

E.M.F = \frac{\delta \phi}{\delta t} \\\\\phi = BAcos \theta =  BAcos0 = BA\\\\E.M.F = \frac{0.4 X1}{0.7} = 0.571 V

3 0
2 years ago
What is true of all particles of gas enclosed within a container?
Tresset [83]
They expand and fill the whole container. And they move around really fast because it's a gas
8 0
3 years ago
Read 2 more answers
Two identical loudspeakers are some distance apart. A person stands 5.20 m from one speaker and 4.10 m from the other. What is t
Igoryamba

Answer:

125.09 Hz

Explanation:

Given : A person stands 5.20 from one speaker and 4.10 m away from the other speaker.

Distance between the speakers is 5.20 - 4.10 =1.10 m

We know that

For destructive interferences

        n . λ / 2

where n =1,3,5,7....

Therefore difference between the speakers is

5.10 - 4.20 = 1 X 0.5 λ

λ = 2.2

Given velocity of sound is V = 344 m/s

Therefore frequency, f = \frac{v}{\lambda }

                                      = \frac{344}{2.2 }

                                      = 156.36 Hz

Now, the third lowest frequency is given by

              λ = (5.20-4.10) X 5 X 0.5

                 = 2.75 m

Therefore frequency, f = \frac{v}{\lambda}

                                      = \frac{344}{2.75}

                                      = 125.09 Hz

Therefore third lowest frequency is 125.09 Hz

5 0
3 years ago
What is the full moon that occurs during the autumn equinox called?
zhannawk [14.2K]

Answer: Harvest Moon

Explanation:

But to most casual observers, the moon will appear fully illuminated in the night sky from Sunday through Tuesday. In the Northern Hemisphere, the full moon that appears closest to the fall equinox is traditionally referred to as the "Harvest Moon."

3 0
2 years ago
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