A student who has trouble hearing and must have a written copy of class lectures in order to participate in class is considered to have which of the following?

Answers

Answer 1

Answer: For this, the student has problems when participating in class discussions. I believe that this type of student has a participation restriction disability. This disability refers to an individual who cannot focus or is not capable of participating in social activities.

Answer 2

Answer:

Answer: The answer is c

Explanation:

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Scientific notation 47,000

Answers

47,000 written as 4.7 x 104 in s scientific notation

Yep that is right 4.7 times 104

What is Earth's role in the hierarchy of organization within the universe

Answers

In the hierarchy of Organization within the universe , currently Earth placed as the 3rd Planet (after Mercury and Venus) , and the only planet that provided living organisms with enough resources to live such as water, foods, breathing air, etc.

To pull a 50 kg crate across a horizontal frictionless floor, a worker applies a force of 210 N, directed 20° above the horizontal. As the crate moves 3.0 m, what work is done on the crate by (a) the worker's force, (b) the gravitational force on the crate, and (c) the normal force on the crate from the floor? (d) What is the total work done on the crate?

Answers

The work done on the crate by the worker's force is 592 J.

Given that,

Mass of the crate, m = 50kg

Force applied by the worker, F = 210N

Angle to the horizontal, θ = 20°,

Distance moved by crate, d=3m

A force causes an object with mass to change its velocity, therefore, the acceleration. acceleration caused by a force is always in the direction of force applied.

Also, we know that work done is always given as the product of force and displacement in the direction of the force.

$\bold{Work= Force* displacement}$

(a.) work done on the crate by the worker's force,

As the force is been applied at an angle directed 20° above the horizontal.

Therefore, the force is causing the crate to move in the horizontal direction, thus, only the horizontal component of the force is taken.

$\begin{aligned}W &= F\ Cos\theta * d\n&=210 * Cos (20^o)* 3\n&= 592.00\ J\n\end{aligned}$

(b) work done on the crate by the gravitational force,

$\bold{Gravitational\ force = Mass* acceleration\ due\ to\ gravity}$

As the gravitational force is always applied perpendicular to the horizontal.

Therefore, the gravitational force is not causing the crate to displace anywhere, thus, the displacement is zero.

$\begin{aligned}W &= gravitational\ force * displacement\n&=m* g * d\n&=50* 9.81* 0\n&= 0\ J\n\end{aligned}$

Hence, work done on the crate by the gravitational force is 0 J.

(c.) work done on the crate by the normal,

Normal is the contact force that is perpendicular to the surface with which the object has contact.

As the normal force did not cause the crate to displace upward by any distance.

(d.) The total work done on the crate,

As discussed above the only work done on the crate is by the worker.

Therefore, The total work done on the crate is 592 J.

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Answer:

Explanation:

Given that,

A crate of mass M = 50kg

The crate is pulled along an horizontal floor by a string at an angle

Force pulling the crate

F = 210N

Angle θ = 20° to the horizontal

Distance moved by crate d=3m

A. Work done by force

W = FdCosθ

W = 210 × 3 × Cos20

W = 592J

B. Work done by Gravitational force?

Work is define as the dot product of force and displacement in the direction of the force.

Since the gravitational force does not cause the crate to move any distance downward

Then,

W(gravity) = mg×d

distance d=0

W(gravity) = 0 J

C. Work done by normal?

Since, the normal force did not cause the crate to move upward by any distance

Then,

W(normal) = 0J

D. The total workdone?

The only workdone on the crate is by the person

Then, the total workdone is the workdone by the person

W = 592 J

Marshall determines that a gas has a gage pressure of 276 kPa whats the absolute pressure of this gasA: 176 kPa
B: 156 kPa
C: 326 kPa
D: 376 kPa

Answers

The right answer for the question that is being asked and shown above is that: "B: 156 kPa ." Marshall determines that a gas has a gage pressure of 276 kPa whats the absolute pressure of this gas B: 156 kPa

your answer is 376kpa hope this helps :) just toke the test :)
GUD LUCK!

The orbits of planets being elliptical was one the planetary laws developed by

Answers

The correct answer is Kepler

Final answer:

The concept that planets move in elliptical orbits was established by Johannes Kepler in his First Law of Planetary Motion. This significant idea disrupted the earlier belief of circular orbits and brought tremendous knowledge in our solar system understanding.

Explanation:

The fact that the orbits of planets are elliptical was part of the planetary laws developed by the renowned astronomer and mathematician Johannes Kepler. Damaging the former belief of circular orbits, Kepler, based on detailed and exhaustive astronomic observations, established his First Law of Planetary Motion which stated that planets move in elliptical orbits with the Sun at one of the two foci. This was a significant breakthrough in understanding our solar system and continues to be fundamental in physics and astronomy today.

Learn more about Kepler's Laws,

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An ambulance driving with velocity v/8 where v is the speed of sound, emits a siren with a frequency of . What is the frequency heard by a stationary observer toward whom the ambulance is driving?

Answers

Frequency = 1/ Time period

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After a large snowstorm, you shovel 2,500 kilograms of snow off of your sidewalk in half an hour. You liftthe shovel to an average height of 1.5 meters while you are piling the snow in your yard. a. How much work did you do? Hint: The force is the weight of the snow. b. What was your power in watts? Hint: You must always convert time to seconds when calculating power.