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Dmitrij [34]
3 years ago
15

A 24.0-kg block is initially at rest on a horizontal surface. a horizontal force of 73.0 n is required to set the block in motio

n, after which a horizontal force of 65.0 n is required to keep the block moving with constant speed. (a) find the coefficient of static friction between the block and the surface. (b) find the coefficient of kinetic friction between the block and the surface.
Physics
1 answer:
WITCHER [35]3 years ago
6 0
Some dogs may inherit a susceptibility to epilepsy.
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Geological and atmospheric changes happening over a ______ time scale can cause______ extinctions.
ludmilkaskok [199]

Answer:

Long short

Explanation:

1

Dogs that are bigger are selected to be parents.

2

The parents are bred together, and their offspring will be different sizes.

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The biggest offspring will be selected and bred together.

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This cycle continues until the dogs have been selectively bred to be bigger than the current world record size.

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Selective breeders need to ensure that they are not also selecting for disadvantageous traits, like genetic limb defects.

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8 0
3 years ago
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Newtons third law is called law of action and reaction?
TiliK225 [7]

Answer:

His third law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal and opposite force on object A. ... In reaction, a thrusting force is produced in the opposite direction.

Explanation:

7 0
3 years ago
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What is true about empirical and molecular formulas?
lora16 [44]

Answer:

Molecular formulas explains how many atoms of each element are in a compound, and empirical formulas explains the simplest or reduced ratio of elements in a compound. For instance, If a compound's molecular formula cannot be further reduced any more, then the empirical formula is the same as the molecular formula.

7 0
3 years ago
Describe how the properties of the compound carbon monoxide (CO) differ from the properties of the elements in the compound.
abruzzese [7]

Answer:

A compound is a pure substance made of two or more elements chemically combined in a set ratio. ... If a different ratio of carbon atoms and oxygen atoms are seen in a formula, you have a different compound. For example, carbon monoxide—a gas produced in car engines—has the formula CO.

8 0
4 years ago
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What is the current in a 120 volt circuit if the resistance 5 ohms?
Lera25 [3.4K]

By Ohm's law:

  • V = IR

→ 120 = I(5)

→ I = (120/5)

→ I = 24 Ampere

<em>Hence, Option c) is correct </em>

4 0
3 years ago
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