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krok68 [10]
1 year ago
14

Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional

questions.
Site 1: "Facial Feedback Theory Script"

After watching the case study and reading the script about the facial feedback theory, reflect on how you feel. Did you realize that none of the images showed angry faces? Why do you think you viewed only pictures of smiling people, and what effect do you think it was meant to have on you as the viewer? What do you think would occur if you were asked to view the case study again, this time using a mirror to mimic the faces you saw on screen? (Site 1)
Physics
1 answer:
vivado [14]1 year ago
6 0

The facial feedback theory is a psychological theory associated with the emotional consequences due to physiological actions.

The provided case study a number of smiling faces which made the person saying it smile thereby working there muscles that related with smile this makes a psychological consequence and people find  things much  more funnier than they usually are.

If as a viewer again this case study is provided and the viewers is allowed to mimic in mirror he or she will again make much  funnier faces due to the psychological consequence.

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A plastic box has an initial volume of 2.00 m 3 . It is then submerged below the surface of a liquid and its volume decreases to
nikitadnepr [17]

Answer:

Volume strain is 0.02

Explanation:

Volume strain is defined as the change in volume to the original volume.

It is given that,

Initial volume of the plastic box is 2 m³

It is then submerged below the surface of a liquid and its volume decreases to 1.96 m³

We need to find the volume strain on the box. It is defined as the change in volume divided by the original volume. So,

\delta V=\dfrac{V_f-V_i}{V_i}\\\\\delta V=\dfrac{1.96-2}{2}\\\\\delta V=0.02

So, the volume strain on the box is 0.02.

6 0
1 year ago
Calculate the time taken by the light to pass through a nucleus of diameter 1.56 10 -16 m. (speed of light is 3 10 8 m/s)
slega [8]

Answer:

5.2x10^-25

Explanation:

Time=(1.56x 10^-16)÷(3x10^8)

4 0
1 year ago
A rifle, which has a mass of 5.50 kg., is used to fire a bullet, which has a massof m = 65.0 grams., at a "ballistics pendulum".
Alex787 [66]

Answer:

Part a)

U = 13 J

Part b)

v = 2.28 m/s

Part c)

v = 177.66 m/s

Part d)

W = 1012.7 J

Part e)

v = 2.1 m/s

Part f)

E = 1037.2 J

Explanation:

Part a)

As we know that the maximum angle deflected by the pendulum is

\theta = 38^o

so the maximum height reached by the pendulum is given as

h = L(1 - cos\theta)

so we will have

h = L(1 - cos38)

h = 1.25(1 - cos38)

h = 0.265 m

now gravitational potential energy of the pendulum is given as

U = mgh

U = 5(9.81)(0.265)

U = 13 J

Part b)

As we know that there is no energy loss while moving upwards after being stuck

so here we can use mechanical energy conservation law

so we have

mgh = \frac{1}{2}mv^2

v = \sqrt{2gh}

v = \sqrt{2(9.81)(0.265)}

v = 2.28 m/s

Part c)

now by momentum conservation we can say

mv = (M + m) v_f

0.065 v = (5 + 0.065)2.28

v = 177.66 m/s

Part d)

Work done by the bullet is equal to the change in kinetic energy of the system

so we have

W = \frac{1}{2}mv^2 - \frac{1}{2}(m + M)v_f^2

W = \frac{1}{2}(0.065)(177.66)^2 - \frac{1}{2}(5 + 0.065)2.28^2

W = 1012.7 J

Part e)

recoil speed of the gun can be calculated by momentum conservation

so we will have

0 = mv_1 + Mv_2

0 = 0.065(177.6) + 5.50 v

v = 2.1 m/s

Part f)

Total energy released in the process of shooting of gun

E = \frac{1}{2}Mv^2 + \frac{1}{2}mv_1^2

E = \frac{1}{2}(5.50)(2.1^2) + \frac{1}{2}(0.065)(177.6^2)

E = 1037.2 J

6 0
2 years ago
Write a hypothesis for Part II of the lab, which is about the relationship described by F = ma. In the lab, you will use a toy c
Temka [501]

Answer:

F=ma is the relationship where, F is force, m is mass and a is acceleration.

Newton's second law states that  the unbalanced force applied to the object accelerates the object which is directly proportional to the force and inversely to the mass.

If we apply force to a toy car then It will accelerate.

This is how Newton's second law of motion is verified.

6 0
1 year ago
Read 2 more answers
Hanging by a thread. Two metal spheres hang from nylon threads and attract each other when brought close together. (i) What can
elena-14-01-66 [18.8K]

Answer:

Explained

Explanation:

i)Two spheres hanging from nylon threads attract each other because either the two spheres are charged with opposite sign or only one of the spheres is charge so the other would be charge by induction of the charged sphere and hence attract each other.

ii)However, when they are touched the charges will be rearranged among the two sphere such that the two sphere have exact same magnitude and sign of charge and now they will repel each other or the  magnitude of charges on the two spheres become zero and they neither attract or repel each other.

5 0
2 years ago
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