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VARVARA [1.3K]
3 years ago
10

what is the mechanical advantage of a machine that uses an input force of 20 newtons to achieve an output force of 60 newtons

Physics
1 answer:
inn [45]3 years ago
4 0
The answer to your question will be 3.

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Explain the difference between radiation as it is used in most everyday language and radiation as it is used in an astronomical
horsena [70]

Answer:Explained Below

Explanation:

Radiation in everyday language refers  to certain type of subatomic particle released by a radioactive unstable nucleus.It can be used to kill the cancer by damaging the DNA of cancer cells.

The transmission of energy in the form of waves via a material medium is called radiation in astronomical context.

7 0
3 years ago
A rock resting high in a cliff is an example of an object with what type of energy?
Elanso [62]

potential energy because it has the ability to do work

Explanation:

A rock resting high in a cliff is an example of potential energy because it has the ability to do work. This form of energy is called potential energy.

  • Energy is defined as the ability to do work. To do work, force must applied using energy to move a body through a particular distance.
  • A body at rest is not doing any work. This is the case with potential energy of the body on a high cliff.
  • At the state of rest, it is not doing any work.
  • The potential energy of this body expresses the ability of such body to do work.

Learn more:

Potential energy brainly.com/question/10770261

#learnwithBrainly

5 0
3 years ago
Formulas in the solutions.
Nutka1998 [239]

Answer:

1) The Newton's law the Hulk is most closely demonstrating is <em>the Third Law of motion</em>

Newton's third law of motion states that action and reaction are equal and opposite.

2) The reason why the Newton's Law the Hulk is most closely demonstrating is the Newton's Third Law of Motion is that according to Newton's Third Law of motion, forces exist in pairs, the action of the Hulk when he leaps upward by pushing against the the Earth (which can be assumed stationary in relation to the Hulk), is equal to the reaction of the Earth, which moves down slightly, away from its initial position.

However, due to the large mass of the Earth, compared to the mass of the Hulk, the downward motion of the Earth due to the reaction force (equal to the force with which the Hulk leaps) is negligibly small, such that the Earth can absorb the Hulk's leap force by reacting mainly locally, at the leap point  by forming a crater, while the Earth in general, remains in the same place

Explanation:

6 0
3 years ago
A rock is tossed straight up from ground level with a speed of 22 m/s. When it returns, it falls into a hole 9.0 m deep. a. What
Vera_Pavlovna [14]

Answer:

(a) v_{f}=26.08m/s

(b) t=4.906seconds

Explanation:

We will take ground level as origin and upward is positive direction

the givens are

y_{i}=0\\y_{f}=-9.0m\\ v_{i}=22m/s

Part (a)

To find the final velocity we use the kinematic equation

So

(v_{f})^{2} =(v_{i})^{2} +2a(y_{f}-y_{i})\\(v_{f})^{2}=(22m/s)^{2}+2(-9.8m/s^{2} ) (-10-0)\\v_{f}=\sqrt{(22m/s)^{2}+2(-9.8m/s^{2} ) (-10-0)} \\v_{f}=26.08m/s

Part (b)

To find time of rock trip until it touches the ground we will use simple kinematic equation or simple motion equation

v_{f}=v_{i}+at\\t=\frac{v_{f}-v_{i}}{a}\\ t=\frac{(-26.08m/s)-(22m/s)}{-9.8m/s^{2} }\\t=4.906seconds

Notice that we substituted vf with negative sign because its direction is downwards

5 0
3 years ago
Which cells or organs are considered to be part of both the immune and lymphatic systems? Select all that apply.
Leviafan [203]

Answer:

lymph nodes

tonsils and adenoids

thymus

Explanation:

-Arteries are the blood vessels that take the blood that contains oxygen from the heart to the tissues and are part of the circulatory system.

-Lymph nodes are glands that take care of filtering the fluid that goes through the lympathic system and are also important for the functioning of the immune system.

-Capillaries are blood vessels that connect the veins and arteries and are part of the circulatory system.

-Tonsils and adenoids are located in the throat and they help protect the body from diseases and they are part of immune system and the lympathic system.

-Veins are the vessels that take the blood to the heart and they are part of the circulatory system.

-Thymus is an organ in which the T cells develop and they help protect the body against virus and bacteria and it is part of the immune and lympathic systems.

According to this, cells or organs that are considered to be part of both the immune and lymphatic systems are:

lymph nodes

tonsils and adenoids

thymus

8 0
3 years ago
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