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3 years ago

I messed up the first time, 1. What was most interesting about this episode to you?

Physics

1 answer:

kupik [55]3 years ago

5 0

Answer:

All of the interesting things I learned?

Hope this helps?

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A bar magnet has

MrRissso [65]

Answer:

Explanation:

Bar magnets have two magnetic poles

8 0

3 years ago

Which formulas have been correctly rearranged to solve for radius? Check all that apply. r = GM central/v^2 r =fcm/v^2 r =ac/v^2

jek_recluse [69]

The orbital radius is: $r=\frac{GM}{v^2}$

Explanation:

The problem is asking to find the radius of the orbit of a satellite around a planet, given the orbital speed of the satellite.

For a satellite in orbit around a planet, the gravitational force provides the required centripetal force to keep it in circular motion, therefore we can write:

$\frac{GMm}{r^2}=m\frac{v^2}{r}$

where

G is the gravitational constant

M is the mass of the planet

m is the mass of the satellite

r is the radius of the orbit

v is the speed of the satellite

Re-arranging the equation, we find:

$\frac{GM}{r}=v^2\\r=\frac{GM}{v^2}$

Learn more about circular motion:

brainly.com/question/2562955

brainly.com/question/6372960

#LearnwithBrainly

7 0

3 years ago

Read 2 more answers

a man walking at the rate of 5km/hr crosses a bridge in 15 min find the length of the bridge in meyers

Westkost [7]

Answer:

I hope this helps. Plzz mark as brainliest

Explanation:

A man walking at the rate of 5 km/hr. crosses a bridge in 15 minutes. The length of the bridge (in meters) is:

[A]1000 m

[B]1250 m

[C]600 m

[D]750 m

1250 m

Speed of the man = 5 km/hr

Time taken to cross the bridge = 15 minutes

Length of the bridge = Speed Time

Hence option [B] is the right answer.

8 0

3 years ago

How fast, in meters per second, does an observer need to approach a stationary sound source in order to observe a 7.1 % increase

Nutka1998 [239]

Answer:

v0 = 24.42 m/s (Approx)

Explanation:

Given:

Increase in frequency = 7.1% =

Computation:

Assume n = 100%

n1 = [(v+v0)/(v+v1)]n

[100 + 7.1] = [(344+v0)/(344+0)]100

107.1 = [(344+v0)/(344)]100

v0 = 24.42 m/s (Approx)

5 0

3 years ago

Select answer about motion and newtons law and explain why it's correct 23POINTS NEED ASAP

zlopas [31]

The train would need the greatest amount of force due to weight! If you think of it, a baseball won't need much force to stop it, but if you have a heavy train, it will need excessive force to stop the train. The answer would be #3

I hope this answer helps!

Sorry if it doesn't make sense, as I don't know that much about physics! I am just thinking of what makes sense.

3 0

4 years ago