3 years ago

What two quantities do you have to know to calculate the density of and object?

1 answer:

3 0

'Density' is defined as (mass) / (volume). You need enough information to be able to measure or calculate the mass and the volume of the object.

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What is a Vector and a scalar?

vfiekz [6]

Scalars are quantities that are fully described by a magnitude (or numerical value) alone.
Vectors are quantities that are fully described by both a magnitude and a direction.

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3 years ago

1. The property of a material to absorb liquid like water is called

frez [133]

Answer:

A hygroscopic substance is one that readily attracts water from its surroundings, through either absorption or adsorption.

Explanation:

A hygroscopic substance is one that readily attracts water from its surroundings, through either absorption or adsorption.

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3 years ago

PLEASEEE HELPPPPP does anyone know these answers?

steposvetlana [31]

Answer:

oof ok

Explanation:

Thank you :)

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3 years ago

URGENT: Two horizontal forces act on an object on a surface. There is a 20 Newton applied force to the left and a sliding fricti

anygoal [31]

Answer:

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Explanation:

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3 years ago

A rope is vibrating so as to form the standing wave pattern shown. How many antinodes are present in the rope?a- 5b- 4c- 8d- 10e

denpristay [2]

c) 8

Explanation

When you shake a rope, the particles in the rope move up and down, and the wave moves forward or away from the source of energy. The rope moves in a direction that is perpendicular

Nodes are the places where the rope doesn't move at all; antinodes occur where the motion is greatest.

Step 1

let's check the graph:

a) Nodes

and Antinodes

so, in the ripe there are 8 antinodes

therefore, the answer is

c) 8

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1 year ago