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3 years ago

Name the applied force in the free body diagram:

Physics

2 answers:

MAVERICK [17]3 years ago

6 0

The applied force is the force from an external agent that tries to start the motion or stop the motion. Since, the block is being dragged in the horizontal direction, the applied force will be spring balance force because it drags the block to the left. Hence, it is the applied force. The forces in the vertical direction are gravity and normal force and the dotted force is frictional force.

Answer: The spring scale drags the box.

guapka [62]3 years ago

5 0

The spring scale dragging the box, since applied force is a force acting on an object due to a person or another object.

Even though the table is an object, the table pushing up is the normal force, which is perpendicular to the contact force.

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All waves on the EMS are considered to be ________ energy

photoshop1234 [79]

Electromagnetic radiation

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4 years ago

A plastic light pipe has an index of refraction of 1.48. For total internal reflection, what is the minimum angle of incidence i

Rama09 [41]

Answer:

a) 42.52°

b) 63.98°

Explanation:

Refractive index of pipe = 1.48 = n₂

Refractive index of air = 1.0003 = n₁

$\theta_r=sin^{-1}\frac{n_1}{n_2}\\\Rightarrow \theta_r=sin^{-1}\frac{1.0003}{1.48}\\\Rightarrow \theta_r=sin^{-1}0.676\\\Rightarrow \theta_r=42.52^{\circ}$

∴ Minimum angle of incidence is 42.52°

Refractive index of water = 1.33 = n₁

$\theta_r=sin^{-1}\frac{n_1}{n_2}\\\Rightarrow \theta_r=sin^{-1}\frac{1.33}{1.48}\\\Rightarrow \theta_r=sin^{-1}0.899\\\Rightarrow \theta_r=63.98^{\circ}$

∴ Minimum angle of incidence is 63.98°

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4 years ago

Which of the following lies in the ecliptic plane?

babymother [125]

<h2>Answer: Earth's orbital path around the Sun</h2><h2></h2>

The <u>Ecliptic</u> refers to the orbit of the Earth around the Sun. Therefore, <u>for an observer on Earth it will be the apparent path of the Sun in the sky during the year, with respect to the "immobile background" of the other stars.</u>

<u />

It should be noted that the ecliptic plane (which is the same orbital plane of the Earth in its translation movement) is tilted with respect to the equator of the planet about $23\°$ approximately. This is due to the inclination of the Earth's axis.

Hence, the correct option is Earth's orbital path around the Sun.

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4 years ago

A wrecking ball has a mass of 650 kg. it swings from a cable that is 21 m long. the centripetal force on the ball is 56 n. what

sweet-ann [11.9K]

The correct answer was A "1.3 m/s"

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3 years ago

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Think of a way you could demonstrate elastic force to a younger student. Describe the procedure you would follow and the materia

Soloha48 [4]

Answer:

I feel like to demonstrate you would use an elastic band as the material. You obviously have to put force in order to see how far it stretches. From this you can also find about its resistance and durability

Also you have to make sure the distance between the two hands are equal as you want an accurate result.

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3 years ago