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Masteriza [31]
3 years ago
7

A student is conducting a physics experiment and rolls four different-

Physics
1 answer:
joja [24]3 years ago
4 0

Answer:

<em>I think the answer is C</em>

<em />

Explanation:

Its heavy but not too heavy

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What is the voltage in a circuit which has a current of 50 amps and a resistance of 10<br> ohms?
ahrayia [7]

Answer: 500 volts

Explanation:

Voltage of circuit V = ?

Resistance R = 10Ω ( ohms is represented by the symbol Ω)

Current, I = 50Amp

Now recall that:

Voltage = current x resistance

i.e V = I x R

V = 50Amps x 10Ω

V = 500 volts

Thus, there is 500 volts of voltage in the circuit

6 0
3 years ago
Can there be two places on the surface of the Earth having the same local time but opposite seasons? A. No, there cannot be two
Black_prince [1.1K]

Answer : Yes, only if both are in the different hemispheres.

Explanation : At the same local time, the southern hemisphere points away from the sun then creating the winter during June, July and August and when the south pole is tilted toward the sun and the northern hemisphere is tilted away then creating summer in the southern hemisphere is in December , January and February.

3 0
3 years ago
A student is blowing over a straw 25 cm long, which is closed at one end. If the sound produced has a frequency of 350 Hz, what
NARA [144]

Answer:

If the end of the tube is uncovered such that the air at the end of the tube can freely vibrate when the sound wave reaches it, then the end is referred to as an open end. If both ends of the tube are uncovered or open, the musical instrument is said to contain an open-end air column.

Explanation: hope this helps:)

7 0
3 years ago
What causes the apparent motions of stars across the sky each night
densk [106]

Answer:

B

Explanation:

for the motion every night, it is because the Earth spins on its axis.

for the changes over a year, this is because the Earth rotates around the sun.

for the changes over hundreds, thousands or millions of years, this is because the whole solar system (including the Earth, of course) rotates with all the other stars in our galaxy around the center of the galaxy. and each star system has its own orbit (similar to the planets in our solar system).

it is very rare to see objects outside of our galaxy without a telescope, but they change too over a long period of time, because our galaxy not only rotates by also moves through the universe, and these other objects move on their own too.

3 0
3 years ago
Bacteria prefer a dry environment to a damp or moist environment. False True
mariarad [96]

Answer:

false

Explanation:

cause bacteria prefers moist and damp environment

7 0
3 years ago
Read 2 more answers
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