PHYSICS MIDDLE SCHOOL

Can someone please help me with this question.

Answers

Answer 1

Answer:

Answer:

compressional wave

Explanation:

Answer 2

Answer:

longitudinal ! :) :)

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A ball rolls with a speed of 4.0 m/s across a level table that is 1.0 m above the floor. Upon reaching the edge of the table, itfollows a parabolic path to the floor. How many meters along the floor is the landing spot from the table?

Answers

Answer: 1.81m

Explanation:

Given the following:

Horizontal speed = 4m/s

Height of table = 1m

Taking the vertical component of the motion:

Using:

S = ut + 0.5 at^2

Where, S = height of table, a = acceleration due to gravity (9.8m/s^2), t = time and u = Initial Velocity in vertical direction = 0

1 = 0(t) + 0.5(9.8)t^2

1 = 4.9t^2

t^2 = 1 / 4.9

t^2 = 0.204081

t = sqrt(0.204081)

t = 0.452s

For Horizontal :

Gravitational acceleration is absent, therefore distance can be calculated using:

Distance = Velocity × time

Distance = 4m/s × 0.452s

Distance = 1.808 m

Distance = 1.81m

Which is true about carbon-12 compared with carbon-13

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e mass number of any given atom depends solely on the number of protons and neutrons in its nucleus. The mass number of any atom can be determined by adding the number of protons and neutrons. (Mathematically this is stated as Mass Number = Protons + Neutrons). For instance, a Carbon atom with 6 protons and 6 neutrons will have a mass number of 12AMU. However, a Carbon atom with 6 protons and 8 Neutrons will have a mass number of 14AMU. They are both Carbon atoms, however they each have a different mass number. Atoms of the same element that have different numbers of neutrons, and therefore, different mass numbers, are called isotopes. Isotopic symbols are used to indicate isotopes of the same elements. In the following isotopic symbols the lower number is the atomic number…it is the number of protons. The upper number is the mass number, it represents to sum of the protons and neutrons in the atoms nucleus.

Match the different health insurance policies with the correct match

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Athough there aren't any pictures I know the exact question they're asking on edmentum.

It's this, point of service - 1, catastrophic - 2, exclusive provider - 3, high deductible - 4

Answer:

Here's the answer.

Simple Machine Lever: A ________ that pivots on top of a fixed point called a _______.

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Which example best demonstrates the relationship between temperature and pressure?Question 19 options: melting ice, bubbles on a pizza popping when they are cut, bubbles forming in dough when it is heated, or evaporating water

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bubbles forming in dough when it is heated;)

Can someone help me ASAP!!!! why does the united states still use the english system for everyday measurements which of the following is not a reason for worldwide use of the metric system instead

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The US English System of measurement grew out of the manner in which people secured measurements using body parts and familiar objects. For example, shorter ground distances were measured with the human foot and longer distances were measured by paces, with one mile being 1,000 paces. Capacities were measured with household items such as cups, pails (formerly called gallons) and baskets.

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