Convert 16.1 km/h to meters per second

Answers

Answer 1

Answer: 16.1=4.472222 i hope this helps!!

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How does a proper warm up affect blood flow

Answers

It speeds blood flow. The heart beats faster, it is beating blood faster.

The force of gravity acting on a child's mass on earth is 490 newtons. Whats the child's mass?A. 206 kg
B. 800 kg
C. 50 kg
D. 4802 kg

Answers

Force of gravity on an object is the weight of the object and is given by mass times accerelation due to gravity. The accerelation due to gravity is the accerelation of an object in free fall and is given by 9.8m/s^2. Given that the force of gravity acting on a child's mass on earth is 490 newtns, i.e. F = mg which means that 490 newtons = 9.8 times mass. Therefore, mass of the child is 490 / 9.8 = 50 kg.

Answer:

C. 50 kg

Explanation:

Force of gravity on an object is the weight of the object and is given by mass times acceleration due to gravity. The acceleration due to gravity is the acceleration of an object in free fall and is given by 9.8m/s^2. Given that the force of gravity acting on a child's mass on earth is 490 newtons, i.e. F = mg which means that 490 newtons = 9.8 times mass. Therefore, mass of the child is 490 / 9.8 = 50 kg.

A student has the following equipment - copper wire, nail made of iron,a battery, paperclips.How can he make an electromagnet and use it to separate a mixture of small pieces of copper and iron?

please help

Answers

Taking the copper wire, he has to wind it around the nail made of iron. After which, he then connect both ends of the copper wire to the battery, so an electric charge travels through the wire. This is the basic electromagnet. Since a current is now flowing through the wire, a magnetic field is produced. Placing the electromagnet near the mixture of copper and iron, the magnet should attract the pieces of iron, as iron is more magnetic compared to copper. This is done over a period of time, so that only the copper pieces are left in the mixture.

If you have a projectile and you double its mass, how would this affect its horizontal velocity?

Answers

Its horizontal velocity is determined at the instant of launch ... the angle and speed with which you launch it.

I suppose its mass might have some influence on how fast and at what angle you launch it, but we'd have to know more about how strong you are, and how you throw, to know what the effect of the mass might be.

But that's still just the effect the mass has on YOUR ability to handle it. If we can assume that you launch every projectile at the same angle and with the same speed, then their different masses have no effect on their range. Every projectile you launch hits the ground at the same place. Mass makes no difference.

Air is forced through the water to remove gases is called?

Answers

The process through which air is forced through water to remove gases is called aeration. Aeration is often used as a major step in water treatment plants to remove unwanted gases such as carbon dioxide, odors, and other impurities in water. The process also allows dissolved metals such as iron to oxidize.

Answer:

d. aeration

Explanation:

FASTA ball has 116.62 J of gravitational potential energy at a height of 85 m. What is the mass of the ball?

a.0.14 kg
b.0.37 kg
c.11.9 kg
d.21.82 kg