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3 years ago

15

You should ALWAYS carry the microscope by placing your hand on the base of the microscope and gripping the red handle with your

other hand. © True False

1 answer:

marin [14]3 years ago

4 0

Answer:

true

Explanation:

place hand under base and one on the arm/handle

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At take off, a plane flies 100 km north before turning to fly 200 km east. How far is its destination from where the plane took

IRINA_888 [86]

<u>Answer</u>

224 Km

4 Km

<u>Explanation</u>

<u>Part 1</u>

The plane flies 100 Km north and then 200 Km east. This makes a 90° turn. To get the distance taken by the plane we get the hypotenuse.

c² = a² + b²

c² = 100² + 200²

= 50,000

c = √50,000

= 223.606 Km

The answer to the nearest whole number is 224 Km

<u>Part 2</u>

If the runner run 15 Km north then 11 Km south, the resultant distance would be,

15 - 11 = 4 Km

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3 years ago

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A fish is hooked on a line that is wound around the spool of a fishing reel. The reel has a mass of 652 g and a diameter of 10 c

iren2701 [21]

The magnitude of the force exerted by the fish is 3,052.5 N.

The given parameters;

mass of the reel, m = 652 g = 0.652 kg

diameter of the reel, d = 10 cm

radius of the reel, r= 5 cm = 0.05 m

time of motion, t = 5 s

angular speed of the reel, ω = 306 rad/s

According to Newton's third law, the force exerted by the reel is equal in magnitude to the force fish exerted on the reel.

The centripetal force of the reel = force exerted by the fish

$F_c = m\omega^2 r\\\\F_c = 0.652 \times (306)^2 \times 0.05\\\\F_c = 3,052.5 \ N$

Thus, the magnitude of the force exerted by the fish is 3,052.5 N.

Learn more here: brainly.com/question/14905888

3 0

3 years ago

Examine the information. A truck accelerates 3 km/h/s south. Which option correctly describes the truck’s acceleration?

Oksanka [162]

Answer:

d. Every second, the truck’s velocity increases by 3 km/h to the south.

Explanation:

Acelleration can be defined as change of velocity over change of time.

That's why if we say: "A truck accelerates 3 km/h/s south."

We are saying that the acceleration of the truck variate 3Km/h wich is velocity of the truck, and it variates every second and also its direction is south.

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3 years ago

The energy of atoms and molecules in an object due to their motion is_______ energy

QveST [7]

I think the answer is potential

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3 years ago

Newton’s third law of motion says that for every action there is a(n) _____ and opposite reaction.

gavmur [86]

For every action<span>, </span>there<span> is </span>an<span> equal and </span>opposite reaction<span>.</span>

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3 years ago

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