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Aleks [24]
1 year ago
5

Navigation is the art of measuring distances in order to be able to __________.

Physics
1 answer:
Kaylis [27]1 year ago
7 0

Navigation is the art of measuring distances in order to be able to get from one place to another

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Gravity is the main force for mass movement.<br> True<br> False
Travka [436]

Hello!

Mass, a weight.

Gravity, force.

Translated the Turkish.

Kütle, bir ağırlıktır.

Yer çekimi, insanın yere uyguladığı kuvvet.

Answer (Turkish : Cevap)

True (Doğru)

Have a nice day! ( İyi günler!)

5 0
2 years ago
Read 2 more answers
Use the graph above to determine the change in speed of the object between 20 and 30 seconds?
allsm [11]

Answer:

6 m/s

Explanation:

To determine the change in speed of the object, we just need to determine its speed at t = 30 s and at t = 20 s, and then calculate the difference.

The speed at t = 30 is:

v = 6 m/s

While the speed at t = 20 s is:

u = 0

Therefore, the change in speed is:

\Delta v = v-u=6-0 = 6 m/s

4 0
3 years ago
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What do wind turbines, hydroelectric dams, and ethanol plants have in common
deff fn [24]
They all produce light and stuff
7 0
3 years ago
Why are you able to observe the Doppler effect on earth with sound waves but not with light waves?
VladimirAG [237]

Answer: When an ambulance passes with its siren blaring, you hear the pitch of the siren change: as it approaches, the siren’s pitch sounds higher than when it is moving away from you. This change is a common physical demonstration of the Doppler effect.

Explanation:

6 0
3 years ago
A 0.07 kg tennis ball, initially at rest, leaves a racket with a speed of 56 m/s. If the ball is in contact with
Naddika [18.5K]

The average force on the ball by the racket is 98 N. The correct option is the third option - 98 N

From the question, we are to determine the average force on the ball by the racket.

From the formula,

F = \frac{mv}{t}

Where F is the force

m is the mass

v is the velocity

and t is the time

From the given information

m = 0.07 kg

v = 56 m/s

t = 0.04 s

Putting the parameters into the formula,

we get

F = \frac{0.07 \times 56}{0.04}

F = \frac{3.92}{0.04}

F = 98 N

Hence, the average force on the ball by the racket is 98 N. The correct option is the third option - 98 N

Learn more on calculating force exerted on an object here: brainly.com/question/13590154

4 0
2 years ago
Read 2 more answers
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