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andrezito [222]
4 years ago
7

WILL GIVE BRAINLY!!!!!!! Question: if a bird flies 100 meters in two minutes what is the bird's speed

Physics
2 answers:
ElenaW [278]4 years ago
6 0

Answer: (5/6) m/s

Explanation:

Distance = 100m

Time taken = 2 min

= 2 × 60 s

= 120 s

Speed = ?

Now,

Speed = distance / time taken

Speed = 100 / 120

Speed = (5/6) m/s

Troyanec [42]4 years ago
6 0

Answer:

(5/6) meteRs a second

Explanation: none. i used a calculator

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the weight of a piece of stone when fully immersed in water is 18N and it displaces 4N of water. what is the weight of the stone
goldfiish [28.3K]

Answer:

4N

Explanation:

Given parameters:

Weight of stone when immersed in water  = 18N

Weight of water displaced  = 4N

Unknown:

Weight of the stone in air  = ?

Solution:

To solve this problem, we employ the Archimedes' principles.

It states that the upward buoyant force on a body is equal to the weight of the fluid displaced.

The weight of the water displaced is equal to the weight of the body.

So, the weight of the stone in air  = 4N

4 0
3 years ago
4) Explain which electric charges attract and which electric charges repel (push away)
DaniilM [7]

Explanation:

According to the fundamental law of electrostatics, like charges which are ( only positive or only negative charges) repel while unlike charges which are ( positive and negative charges ) attract each other.

that is: ( +++++ ++++++) they repel

while ( +++++++ ———) they attract

7 0
3 years ago
What is called the process of finding exact quantity of a substance?​
Tema [17]

Answer:

Measurement is called the process of finding exact quantity of a substances.

7 0
2 years ago
How to find input force ​
vfiekz [6]

Answer: Calculate the work input in a pulley by using the previous readings in the correct mathematical equation. : Work (W) equals force (f) multiplied by distance (d), or W=fd. The work done by the pulley is the equation of weight (w) multiplied by height traveled (h).

Explanation:

6 0
3 years ago
A locomotive is pulling 15 freight cars, each of which is loaded with the same amount of weight. The mass of each freight car (w
VMariaS [17]

Answer:

298,220 N

Explanation:

Let the force on car three is T_23-T_34

Since net force= ma

from newton's second law we have

T_23-T_34 = ma

therefore,

T_23-T_34 = 37000×0.62

T_23= 22940+T_34

now, we need to calculate

T_34

Notice that T_34 is accelerating all 12 cars behind 3rd car by at a rate of 0.62 m/s^2

F= ma

So, F= 12×37000×0.62= 22940×12= 275280 N

T_23 =22940+T_34= 22940+ 275280= 298,220 N

therefore, the tension in the coupling between the second and third cars

= 298,220 N

3 0
3 years ago
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