2 years ago

Which word describes the amount of matter an object contains?

1 answer:

8 0

Answer: Mass is the correct answer. Explanation: As mass is defined as the amount of matter contained in the substances or an object.

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1. A body whose mass is 2 kg and has a volume of 500cm just floats

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Answer:

Density equals mass over volume so 2 divided 500

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3 years ago

What is the different features between the bar magnet and the horseshoe magnet??

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3 years ago

The two types of decomposers

ycow [4]

Bacteria,Worms, Slugs, Snails, and Fungi are all types of decomposers

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3 years ago

Determine the displacement and distance covered by a man if he walks 10 m north, turns east and walks 20 m, and then turns right

NemiM [27]

Answer:

20m

Explanation:

The two tens cancel each other out, as they are in opposite directions. Now we only care about the 20m, which if we have no 10's, will end up 20m away.

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2 years ago

A 1.70 kg block slides on a horizontal, frictionless surface until it encounters a spring with a force constant of 955 N/m. The

Mariana [72]

Answer:

The initial speed of the block is 1.09 m/s

Explanation:

Given;

mass of block, m = 1.7 kg

force constant of the spring, k = 955 N/m

compression of the spring, x = 4.6 cm = 0.046 m

From principle of conservation of energy

kinetic energy of the block = elastic potential energy of the spring

¹/₂mv² = ¹/₂kx²

mv² = kx²

$v = \sqrt{\frac{kx^2}{m} }$

where;

v is the initial speed of the block

x is the compression of the spring

$v = \sqrt{\frac{955*(0.046)^2}{1.7} } \\\\v = 1.09 \ m/s$

Therefore, the initial speed of the block is 1.09 m/s

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3 years ago