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MA_775_DIABLO [31]
2 years ago
15

A bird flies due north with a speed of 15 m/s relative to the air. The air moves due west with a speed of 11 m/s relative to the

ground. What is the robin's speed relative to the ground?
Physics
1 answer:
Aleksandr [31]2 years ago
4 0

Answer:

I'm not sure if the directions affect the speed tho

but I think it's 4? cause it's the speed relative to the ground

hope this helps:))

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What is the net force on a car moving in a straight line with a constant velocity
guapka [62]

Answer:

For example, when a car travels at a constant speed, the driving force from the engine is balanced by resistive forces such as air resistance and friction in the car's moving parts. The resultant force on the car is zero.

Explanation:

hope this helps

3 0
2 years ago
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Two solid balls (one larger, the other small) and a cylinder roll down a hill. Which has the greatest speed at the bottom and wh
makvit [3.9K]
The answer is c hope this clarifies
6 0
3 years ago
This is Yolanda's desk. What could Yolanda do to increase the amount of force needed to change the motion of the desk?
Stella [2.4K]

Yolanda might put more items to the desk to make it heavier, requiring more force.

We need to learn more about the force acting on an object in order to locate the solution.

<h3>How can the force that is required to modify the motion be increased?</h3>
  • We are aware that the word for force is,

                            F=ma

where m denotes the object's mass and an its acceleration

  • There are two ways to increase the force required to alter the motion of the table.
  • One is to increase the mass, and the other is to accelerate it more quickly.
  • Otherwise, there will be a lot of friction between the surfaces, making it difficult to move without exerting a lot of force.

We can infer from this that Yolanda could add items to the desk to increase its mass, necessitating the use of additional force.

Learn more about the force here:

brainly.com/question/4075805

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8 0
2 years ago
Which one of the following substances is a liquid fuel used in rocket engines?
viva [34]
The substance which is a liquid fuel used in rocket engines is liquid oxygen. The correct answer is A.
5 0
3 years ago
6A certain load and set of slings create a 20-degree angle between the load and each sling leg. Using a spreader for the same li
Otrada [13]

Solution:

The angle between the sling and the load is 20^{\circ}

So the  tension in each sling can be calculated as

Sin \theta = Mg => T = \frac{Mg}{2Sin\theta}

Sin \theta=> \frac{Mg}{2Sin 20^{\circ}}

Where    

M is the mass of the load

The Horizontal reaction on the sling will be inward.

After using the spreader, the new angle between sling and load is 60^{\circ}, the tension in the sling will be  

T= \frac{Mg}{2 Sin 60^{\circ}} = \frac{Mg}{2 Sin 20^{\circ}}

The tension will be same as before in the sling move away through the spreader at an angle more than 90 degree the horizontal force will act opposite and will be outward

5 0
3 years ago
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