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creativ13 [48]
3 years ago
15

A student tested a variety of interacting forces to determine how they would result in motion of an object. If the student used

the forces as shown in the lettered choices above, predict which results would occur. Select ALL that apply.A) The variable shown by letter B would result in a movement of the object to the left. B) The variable shown by letter B would result in a movement of the object to the right. C) The variable shown by letter A would result in a movement of the object to the right. D) The variable shown by letter C would result in a movement of the object to the right. E) The variable shown by letter D would result in a movement of the object

Physics
1 answer:
agasfer [191]3 years ago
7 0

Answer:

D) The variable shown by letter C would result in a movement of the object to the right.

Explanation:

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A 0.05-m3 rigid tank initially contains refrigerant-134a at 0.8 MPa and 100 percent quality. The tank is connected by a valve to
lesya692 [45]

Answer:

A= 203 KJ

B= 54 Kg

Explanation:

The initial specific volumes and internal energies are obtained from A-12 for a given pressure and state. The enthalpy of the refrigerant in the supply line is determined using the saturated liquid approximation for the given temperature with data from A-11. The mass that has entered the tank is:

Δm = m₂ – m₁

= V(1/α₂ – 1/α₁)

= 0.05 (1/0.0008935 – 1/ 0.025645)Kg

= 54Kg

The heat transfer is obtained from the energy balance:

ΔU= m_i_n h_i_n+  Q_n_e_t

m₂u₂ – m₁u₂ = m_i_nh_i_n + Q_n_e_t

Q_n_e_t= m₂u₂ – m₁u₁ – m_i_n

= V/α₂u₂ - V/α₁u₁ – m_i_n

=(0.05/0.0008935 . 116.72 – 0.05/0.025645 . 246.82 – 54.108.28) Kj

= 203 KJ

8 0
3 years ago
Find the sum of the following vectors A=3i-12j and B=4i+7j<br><br>​
Lady_Fox [76]

Answer:

(I). The sum of the vectors is (7i-5j).

(II). The sum of the vectors is (8i+7j).

Explanation:

Given that,

(I). Vector A A=3i-12j

Vector B B=4i+7j

Suppose, (II). Vector A A=6i+15j

Vector B B=2i-8j

(I). We need to calculate the sum of the vectors

Using formula of sum

\vec{C}=\vec{A}+\vec{B}

Where,

\vec{A}= vector A

\vec{B}= vector B

\vec{C}= sum of the vector A and bPut the value into the formula[tex]\vec{C}=(3i-12j)+(4i+7j)

\vec{C}=7i-5j

(II). We need to calculate the sum of the vectors

Using formula of sum

\vec{C}=\vec{A}+\vec{B}

Put the value into the formula

\vec{C}=(6i+15j)+(2i-8j)

\vec{C}=8i+7j

Hence, The sum of the vectors is (7i-5j).

The sum of the vectors is (8i+7j).

8 0
3 years ago
The acceleration of a car is 0.33 m/s squared. if the applied force were cut in half, what would you predict the acceleration wo
NNADVOKAT [17]

0.17m/s²

Explanation:

According to newtons second law "the force on a body is depends on its mass and acceleration"

    Force = mass x acceleration.

The more the mass and acceleration, the more the force a body possess.

  Given that the acceleration of the body is 0.33m/s²

   Force = 0.33 x mass

If the force on the body is halved, the acceleration will also be halved;

   i.e:

        Force = F

     \frac{F}{2} = 0.33 x mass

                 F = \frac{1}{2} x 0.33 x mass

                  F =           0.17      x  mass

            Force = acceleration x  mass

 Acceleration is 0.17m/s²

learn more:

Acceleration brainly.com/question/3820012

#learnwithBrainly

3 0
3 years ago
Write a 150-200 word response. your class requires you to use a program that you must download on your computer you have waited
densk [106]

A person would contact his fellow students and his friends inquiring  whether they have encountered the same issue as it is with him.

<h3>What is program?</h3>

The program is a system software which helps students to learn or accomplish any projects.

The class requires a student to use a program that you must download on his computer. He have waited until day 5 of the week to download the program and need it for an assignment that is due in 2 days now. He is having issues with the program.

He must contact his fellow friends and students whether they are facing the same error in starting the program. There are many resources to be used in place of that software. He can also use the internet to find out the troubleshooting methods. He can also contact the software developer and discuss the problems regarding software.

The effective communication can resolve the issues. If no communication is there, no problem is being solved. The person will never understand what other person is facing until and unless he doesn't speak.

Therefore, proper communication and complete details must be shared in order to solve any issue. Any critical problem can be solved even by just discussing.

Learn more about program.

brainly.com/question/11023419

#SPJ1

3 0
2 years ago
If the wavelength of a wave stays the same and the speed doubles, what happens to the frequency of the wave?
Lapatulllka [165]

Explanation:

velocity = wavelength × frequency => v= f1 × λ => f1 = v/ λ

λ = stays the same

v = doubles

2v = f2 × λ

2v/λ = f2

now ,

f2/f1= 2vλ/ vλ = 2

f2 = 2f1

therefore frequency is doubled

7 0
3 years ago
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