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mojhsa [17]
3 years ago
5

A student wants to increase the magnetic force between two bar magnets. What should the student do? A Move the magnets farther a

part. B Move the magnets closer together. C Make the positive poles face each other. D Make the negative poles face each other.
Physics
1 answer:
dem82 [27]3 years ago
3 0

Answer: The answer is B.

Explanation:

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Can anyone answer this question for me please..​
motikmotik

Answer:

You have to sub x in for the number you dont know and then solve for x.

Explanation:

10(5+x)=90

50+10x=90

10x=40

x=4

8 0
3 years ago
A circuit has a source voltage of 50v and a current of 10a. what is the power in watts
Artyom0805 [142]
Power (P)= Voltage (V)* Current (I)
P=50*10=500W

*This is a common answer of mine*
Hope this helps.
8 0
3 years ago
Assume that the Moon is in circular orbit around the Earth. The distance between the Moon and the Earth is approximately 3.56 ×
stira [4]

Answer:

Acceleration = 311.2 Km/hr²

Explanation:

Given: Radius of the Orbit  r= 3.56 × 10⁶ km

Period of the orbit = 28 days = 672 hrs

Sol: We have Fc = MV²/r

⇒M ac = MV²/r

⇒ac = V²/r

First we have to Speed V so for this we have to find the circumference ( distance covered by the moon in one orbit)

⇒ Circumference= 2 π r

= 2 × 3.13149 × 3.56 × 10⁶ km

= 22,368,139.69 Km

Now Speed = Distance /time

Speed = 22,368,139.69 Km / 672 hrs

Speed V = 33,285.92 Km/Hr

Now

ac = V²/r = (33,285.92 Km/hrs)² / 3.56 × 10⁶ km

ac = 311.2 Km/hr²

6 0
3 years ago
Can someone please help me answer 14 and 15??
ziro4ka [17]
14. The Aurora is an incredible light show caused by collisions between electrically charged particles released from the sun that enter the earth's atmosphere and collide with gases such as oxygen and nitrogen. The lights are seen around the magnetic poles of the northern and southern hemispheres.

15.
About 5.4 billion years from now, the sun will have exhausted all of its hydrogen. The sun's core will get really hot and dense, thus shrinking; however, the outer region of the sun will expand and grow. ... Even if the expanding dying sun doesn't reach Earth, the sun's high temperatures will completely burn the planet.
7 0
4 years ago
7. The Voyager 1 space probe was launched in the 1970's and is now the furthest
NikAS [45]

Answer:

v = 16.98 km/s

Explanation:

Given that,

Distance, d = 4500 km

Time, t = 265 s

We need to find its average speed. The total distance covered divided by total time taken is called average speed of an object. So,

v=\dfrac{4500\ km}{265\ s}\\\\=16.98\ km/s

So, the average speed is 16.98 km/s.

6 0
3 years ago
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