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saveliy_v [14]
10 months ago
5

The force diagram shown here describes the forces that external objects (the surface andEarth) exert on a woman (in this scenari

o, the force diagram does not change with time). Describe three different types of motion of the woman that are consistent with the force diagram.

Physics
1 answer:
sveticcg [70]10 months ago
4 0

The three different motions are;

  • The upward motion of the woman is constant
  • The downward motion of the woman is also constant
  • The horizontal motion of the woman is zero.

<h3>What is force diagram?</h3>

Force diagram is a pictorial or graphical illustration of different forces acting on object.

In this given question, there two forces acting on the woman as depicted in the force diagram.

  • The first force is surface force (Fs)
  • The second force is force of Earth (FE)

In the given force diagram, the woman is in equilibrium, this implies that the surface force and the Earth force are equal.

The three different types of motion of the woman that are consistent with the force diagram include the following;

  • The upward motion of the woman is constant
  • The downward motion of the woman is also constant
  • The horizontal motion of the woman is zero since there is no horizontal force on the woman.

Learn more about force diagram here: brainly.com/question/3624253

#SPJ1

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mestny [16]

Answer 1:

A) Conduction

Explanation:

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Answer 14:

A) Empty space

Explanation:

An atom is an essentially empty space, but empty space is often not empty. The cause it looks empty is that electrons and photons don't associate with the stuff that is there, quark and gluon track variations. It really takes energy to clear out space and make a true empty vacuum. Outer space, particularly the almost empty regions of the universe outside the environments of heavenly bodies. Vacuum, a volume of space that is actually empty of matter, such that its volatile pressure is much less than climatic pressure.

Answer 15:

C) Longitudinal waves

Explanation:

Longitudinal waves are waves in which the displacement of the mechanism is in the same direction as, or the opposing direction to, the direction of generation of the wave. Longitudinal waves are perpetually distinguished by particle motion being equal to wave motion. The two most popular classes of longitudinal waves are sound waves and p-waves from earthquakes.

Answer 16:

A) Compressing a spring.

Explanation:

Energy transformation, also termed as an energy exchange, is the method of converting energy from one of its forms into another. In physics, energy is a measure that gives the capability to make many acts think of lifting or warming an object. Most of the time, chemical energy is delivered in the form of heat, and this conversion from chemical energy to heat, or thermal energy, is named an exothermic reaction. Next, there are two main kinds of mechanical energy, kinetic energy, and potential energy.

Answer 17:

C) The ice cube is gaining energy (heat) from your hand.

Explanation:

The ice cube which was hard has changed into the liquid water because the air temperature is warmer than the freezers. Which indicates the ice bits collect heat energy from the heated air. Therefore the ice bits have enough energy to break apart into smaller particle compositions. At freezing temperature, when an ice cube hovers in water, all the time new water molecules that are around and happen to move a bit slower than normal get lost to the ice.

Answer 18:

C) A battery-operated remote control car

Explanation:


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Answer 19:

C) Closer packed or more dense media will have higher speed of sound.

Explanation:

The speed of sound in seawater is very fast related to that in the air almost five times faster. In fact, sound travels even quicker in seawater than in freshwater. Nevertheless, the speed of sound in seawater. In water, the particles are much tighter together, and they can quickly transfer vibration energy from one particle to the next.

Answer 20:

A) From A to B is known as the wavelength and changing the pitch of the note will change its length.

Explanation:

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5 0
3 years ago
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A firework is ignited, and explodes with a flash and a loud bang as it is blown apart. The system consists of: the firework, the
butalik [34]

The complete question is:

Study the scenario. A firework is ignited, and explodes with a flash and a loud bang as it is blown apart. The system consists of: the firework, the earth, and the air. which choice best describes how energy is transformed in the system?

A) When the firework is ignited, a chemical reaction absorbs energy from the surrounding environment. the energy is in several forms including sound and light, and mechanical energy of the fragments of the firecracker that are launched through the air. Eventually all the energy released is transformed into thermal energy.

B) When the firework is ignited, a chemical reaction releases energy in several forms, including sound, light, and the mechanical energy of the fragments being launched through the air. Eventually all the energy released is transformed into mechanical energy.

C) When the firework is ignited, a chemical reaction releases energy in several forms, including sound, light, and the mechanical energy of the fragments being launched through the air. Eventually all the energy released is transformed into thermal or mechanical energy.

D) When the firework is ignited, a chemical reaction absorbs energy from the surrounding environment. The energy is taken in in several forms including sound and light, and mechanical energy of the fragments being launched through the air. Eventually all the energy is transformed into thermal energy.

Answer:

C) When the firework is ignited, a chemical reaction releases energy in several forms, including sound, light, and the mechanical energy of the fragments being launched through the air. Eventually all the energy released is transformed into thermal or mechanical energy.

Explanation:

Energy is released from the system, not absorbed.

All the sound, light and movement of the debris is as a result of energy transformation from the chemical energy.

Eventually, most of the energy are finally wasted away as heat energy.

Some of the energy is used up by the flying particles from the fireworks.

8 0
3 years ago
for an ideal monoatomic gas, the internal energy U os due to the kinetic energy and U=3/2RT per mole.show that cv=3/2R per mole
sladkih [1.3K]

Answer:

i. Cv =3R/2

ii. Cp = 5R/2

Explanation:

i. Cv = Molar heat capacity at constant volume

Since the internal energy of the ideal monoatomic gas is U = 3/2RT and Cv = dU/dT

Differentiating U with respect to T, we have

= d(3/2RT)/dT

= 3R/2

ii. Cp - Molar heat capacity at constant pressure

Cp = Cv + R

substituting Cv into the equation, we have

Cp = 3R/2 + R

taking L.C.M

Cp = (3R + 2R)/2

Cp = 5R/2

3 0
2 years ago
Acar accelerates from 4 meters/second to 16 meters/second in 4 seconds. The car's acceleration is
s2008m [1.1K]

To understand this question, you need to understand the concept of acceleration first. Have you ever been in a car and noticed that it was getting faster and faster? That "speeding up" of the car is known as acceleration! Acceleration is essentially the rate at which you speed up.

Okay, so we now know what acceleration is. What are its units? The unit of acceleration is the change in velocity over a period of time: \frac{∆v}{t}

If you haven't learned about velocity yet, just think about it as speed for now. The funny-looking triangle, ∆, is a symbol for "the change of." For example, if I started walking at 3 \frac{feet}{second} then sped up to 5 \frac{feet}{second}, then the change in my speed would be 2 \frac{feet}{second}, because I started walking 2 \frac{feet}{second} faster!

Okay, enough with all the explanations. Hopefully, you understand the units now. Let's take a look at the question. A car accelerates from 4 \frac{meters}{second} to 16 \frac{meters}{second}  in 4 seconds. What would the acceleration be? Let's set up an equation:

a = \frac{∆v}{t}

a is the acceleration, ∆v is the change in velocity, and t is the time elapsed.

Now, let's plug in our values! ∆v is the change in velocity, and to find that we simply have to subtract 16 \frac{meters}{second} by 4 \frac{meters}{second}. That makes sense, right? Back to the equation.

a = \frac{∆v}{t}
a = \frac{16-4}{4}

(16 - 4 is the change in velocity, and 4 is the number of seconds the car was accelerating)

a = \frac{12}{4}

a = 3 (\frac{meters}{second^{2}})

We have our answer! The car's acceleration is 3 meters per second^{2}.

(You might be thinking: Wait. Meters per second squared? The reason for that is because acceleration is the rate at which the speed increases! That makes the unit \frac{\frac{meters}{second}}{second}, which can be simplified down to \frac{meters}{second^{2} })

Let me know if you need clarification on anything I explained here!
- breezyツ

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2 years ago
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ASHA 777 [7]
Hi!

The answer is <span>B. Language influences how people understand their world.

Hope this helps!

-Payshence xoxo</span>
6 0
2 years ago
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