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Gekata [30.6K]
4 years ago
6

What is net force? A. The fundamental forces B. The unified force C. The gravitational force D. The vector sum of the forces

Physics
2 answers:
avanturin [10]4 years ago
8 0
It is the vector sum of the forces
dedylja [7]4 years ago
7 0

Net force is the vector sum of the forces.

Answer: Option D

<u>Explanation:</u>

The net force can be referred as the sum total of all the forces exerted up on a body. The word net refers to the total, hence net force refers to the total force which exerted upon the object.

A force is related as the displacement experienced by an object due to external factors or interaction acting up on the object. Option A,B and C are irrelevant as they are separate forces exerted up on the object.

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A major benefit of the daguerreotype process is that ________.
tigry1 [53]

Daguerreotype is defined as the first practical photographic process which was introduced in Paris on January 7, 1839. To make the image permanent, Daguerre used salt solution. The result of his introduced process is a finely defined image with surface which is delicate. The major benefit of daguerreotype is if the images are correctly preserved, the pictures could last forever. Aside from this, since it produces superior quality of outline, it is thus suitable for portraitures. 

7 0
3 years ago
A horizontal pipe narrows from a radius of 0.250 m to 0.1000 m. If the speed of the water in the pipe is 1.00 m/s in the larger-
umka21 [38]

Answer:

6.25 m/s

196 kg/s

Explanation:

The areas of the pipe from big to small:

A = \pi R^2 = \pi*0.25^2 = 0.196 m^2

a = \pi r^2 = \pi*0.1^2=0.0314m^2

As the product of speed and cross-section area is constant, the speed in the smaller pipe would be

AV = av

v = \frac{AV}{a} = \frac{0.196 * 1}{0.0314} = 6.25 m/s

The mass flow rate would be:

\dot{m} = \ro AV = 1000 * 0.196 * 1 = 196 kg/s

4 0
3 years ago
Which of the answers shows three examples of a physical change
Wittaler [7]
B would be the correct answer. All the other choices consist of physical changes
5 0
4 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
Determine the mechanical energy of this object. A 2 kg pendelum has a speed of 1 m/s at a height of 1/2 meter
Readme [11.4K]

Mechanical Energy: 10.81 J given that g = 9.81 \; \text{m}\cdot\text{s}^{-2}.

<h3>Explanation</h3>

The mechanical energy of an object is the sum of its kinetic and potential energy.

Kinetic Energy of this object:

\text{KE} = \dfrac{1}{2} \; m \cdot v^{2} = \dfrac{1}{2} \times 2 \times 1 = 1 \; \text{J}

Gravitational Potential Energy of this object:

g = 9.81 \; \text{m}\cdot\text{s}^{-2}.

\text{PE} = m \cdot g \cdot h = 2 \times 9.81 \times \dfrac{1}{2} = 9.81 \; \text{J}.

8 0
3 years ago
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