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3 years ago

What internal process cause most earthquake

Physics

2 answers:

Alisiya [41]3 years ago

7 0

Plate Tectonics cause most earthquakes.

Mrac [35]3 years ago

7 0

Plate Tectonics Is the cause of earthquakes

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a 55.0 kg person having a denity of 1010 kg/m^3 is underwater. What is the net force acting on the person?

bija089 [108]

Answer:

The net force acting on the person is 5.34 N acting upwards

Explanation:

The information given are;

Mass of the person = 55.0 kg

Density of the person = 1010 kg/m³

Body volume of the person = Mass/Density = 55/1010 = 0.0545 m³

Weight of the person = Mass × Gravity = 55 × 9.81 = 539.55 N↓

Where the density of water = 1000 kg/m³, we have;

Upthrust = weight of the water displaced = Mass of the water displaced × Gravity

Mass of the water displaced = Density of water × Volume of the water

Mass of the water displaced = Density of water × Body volume of the person

= 1000 × 0.0545 = 54.5 kg

The Upthrust = 54.5 × 9.81 = 534.21 N↑

Given that the net force, $F_{Net}$ acting is the sum of the mass of forces acting on the person which are the weight acting downward and the upthrust acting upwards

We have;

F(Net) = 534.21↑ - 539.55↓ = 5.34 N↑

The net force acting on the person = 5.34 N upwards.

6 0

3 years ago

Explain two ways in which water’s properties help sustain life.<br><br> Earth Science

hjlf

Answer:

Water is essential for all living things. Water's unique density, high specific heat, cohesion, adhesion, and solvent abilities allow it to support life.

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3 years ago

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How does collision time affect impact forces

Licemer1 [7]

Answer:

A large increase in collision time can mean decrease in impact force. This is essentially what an air bag in your car does. It increases the time over which it stops you and decreases the force. ... In this case, the piano would have a smaller change in momentum and a smaller impact force.

Explanation:

5 0

3 years ago

True or false: in applying the pythagorean theorem to vector addition, the resultant vector is given by the perpendicular vector

olganol [36]

It is False in applying the pythagorean theorem to vector addition, the resultant vector is given by the perpendicular vector

<h3>What is Pythagoras theorem ?</h3>

A useful technique for figuring out the outcome of adding two (and only two) vectors that form a right angle to one another is the Pythagorean theorem. The technique cannot be used to combine more than two vectors or to combine vectors that are not at a 90-degree angle.

The Pythagorean Theorem demonstrates how the side lengths of a right triangle can be calculated from the sum of the areas of three intersecting squares. This theorem is a very helpful tool that serves as the foundation for more intricate trigonometry ideas like the Pythagorean theorem's opposite.

Learn more about Pythagoras theorem here:

brainly.com/question/343682

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3 0

1 year ago

An object is launched horizontally at a velocity of 19 m/s from the top of a building. It falls vertically a distance of 24m bef

nasty-shy [4]

Answer:

2.2 s

Explanation:

His vertical initial velocity u =0

vertical displacement h = 24 m .

vertical acceleration g = 9.8 m /s²

h = ut + 1/2 gt²

24 = 1/2 x 9.8 x t²

t = 2.2 s .

Time of fall = 2.2 s

7 0

3 years ago