The net horizontal force on a box F as a function of the
horizontal position x is shown below.
Force (N)
40
20+
Position (m)
4
4
6
oc
10
12
14
-20+
-40
What is the work done on the box from x = 0m to
16 m?
Round answer to two significant digits.
J

Answer:

2.5 cm³

Explanation:

Use Boyle's Law

1×5=2×V

5=2V

V=5/2=2.5 cm³

Answer:

Copper(II) Hydrogen Carbonate Cu(HCO3)2 Molecular Weight

The name of the compound Cu(HCO₃)₂ is  Copper (II) bicarbonate.

A chemical compound is a substance made of numerous similar molecules (or molecular entities) joined by chemical bonds and comprising atoms from various chemical elements.

Therefore, a molecule made up of only one type of atom is not a compound. Chemical reactions, which may entail interactions with other molecules, can change a compound into a distinct substance. Atomic bonds may be shattered or new ones created during this process.

Compounds can be divided into four main categories based on the bonds that hold their individual atoms together. Covalent bonds hold together molecules, ionic bonds hold together ions, metallic bonds hold together intermetallic compounds, and coordinate covalent bonds hold coordination complexes together.

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Answer:

A motion map can represent the position, velocity, and acceleration of an object at various clock readings. ... The corresponding motion map has the points spaced farther apart (because the car would go a further distance in each second), and the velocity vectors (arrows) are longer, because the car is moving faster.

Explanation:

Answer:

if a red gaint star is large enough, it may eventually blow up in an explosion called a supernova leaving behind very dense neutron star.

Answer:

1.27 Mega watt approx

Explanation:

Given data

Mass= 0.5kg

c= 4200 J/kg °C

T1= 100°C

Time = 2 hours >>>> 7200 seconds

From the given data the water is already at the boiling point

Hence if continuous heat is being added the latent heat of vapourization will result, the latent heat of vaporization is about 2,260 kJ/kg

Q= mL

Q= 0.5*2,260

Q = 1130kJ

Power= Energy * Time

Power=  1130* 1130

Power= 1.27mega watt approx

Answer:

Electrical energy is caused by moving electric charges called electrons. The faster the charges move, the more electrical energy they carry. As the charges that cause the energy are moving, electrical energy is a form of kinetic energy. Lightning, batteries and even electric eels are examples of electrical energy in action!

Explanation:

Answer:1. true

2false

Explanation:

A nswer:

1) false

2) true

Hope its true ! btw its gogole forms right :)

Answer:

A plane mirror is a mirror with a flat (planar) reflective surface. For light rays striking a plane mirror, the angle of reflection equals the angle of incidence. The angle of the incidence is the angle between the incident ray and the surface normal (an imaginary line perpendicular to the surface).

Explanation:

Because there is no light to be reflected. Reflection is the process of bouncing back of the light but since there is no light then nothing will be reflected.

It is correct .

The light is not reflected by the mirror in a dark room due to which no image is formed.

Given is that no reflection is formed when light is absent.

We will not see our reflection in mirror in a dark room because an image is formed only when the light gets reflected by the mirror whereas in a dark room, there is no light to cause reflection hence, no image will be formed

Therefore, the light is not reflected by the mirror in a dark room due to which no image is formed.

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Answer:

15 N

Explanation:

According to Newton's third law of motion, to every action, there is an equal and opposite reaction. This reaction is equal in magnitude to the force acting but in an opposite direction.

Now, if the book weighs 15 N, an opposite equal force will be: N = -15 N

But the magnitude of this will be the absolute value which is 15N.

Answer:

Angle Vy Vy^2/(2*g)

25         6.3    2.02

30          7.5  2.87

45         10.6 5.73

50         11.5 6.75

65         13.6 9.44

70         14.1 10.1

Vy = vertical velocity = V sin theta

2 g H = Vy^2      since the final velocity is zero

H = Vy^2 / (2 * g)

Answer:

option c...................

Answer:

Explanation:

Answer:

Explanation:

A

Answer:

C - Bang on a drum

Explanation:

Answer:

they are called phases of the moon.

The different shapes of the moon seen from Earth are called  phases of moon

The portion of the moon that we can see from the earth on any given night is called phases of moon . There are four phases of moon 1) new moon 2) first quarter 3) full moon 4) third quarter

The earth rotates around the sun and the moon rotates around the earth . so , now we know that moon is in between sun and earth , due to this orbiting the sunlight falls on moon and we see moon in the light of sun as we know moon does not have its own light . Because of this rotation sunlight fall at different angles  because position of moon with respect to earth is changing constantly due to which different shapes has been observed from the earth's surface ,after being reflected that light reaches the earth and being observed by the observer on earth as moon having different shapes called its phases of moon.

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Answer:

I am in favor of the dance event being in may. Because it is nice weather outside, more people will decide to come and spend their time there. It is also light in the evening in may, meaning that you could have the dance event at any time, and younger people will still feel safe at night, meaning their parents will be more open to lwtting kids go.

Answer:

Current that reverses direction in the regular pattern is called an alternating current, abbreviated as 'AC'.

Explanation:

hope this helps!

Answer:

The spring constant is approximately 46.382 newtons per meter.

Explanation:

From Physics, the period ([tex]T[/tex]), measured in seconds, experimented by an object under Simple Harmonic Motion:

[tex]T = 2\pi\cdot \sqrt{\frac{W}{g\cdot k} }[/tex] (1)

Where:

[tex]W[/tex] - Weight, measured in newtons.

[tex]g[/tex] - Gravitational acceleration, measured in meters per square second.

[tex]k[/tex] - Spring constant, measured in newtons per meter.

If we know that [tex]W = 127\,N[/tex], [tex]g = 9.807\,\frac{m}{s^{2}}[/tex] and [tex]T = 3.32\,s[/tex], then the spring constant of the system is:

[tex]\frac{T^{2}}{4\cdot \pi^{2}} = \frac{W}{g\cdot k}[/tex]

[tex]k = \frac{4\cdot \pi^{2}\cdot W}{g\cdot T^{2}}[/tex]

[tex]k \approx 46.382\,\frac{N}{m}[/tex]

The spring constant is approximately 46.382 newtons per meter.

Answer:

Heat supplied should be equal to zero.

Explanation:

Given that a compressed gas is held inside a canister with a moveable lid. The temperature of the gas is significantly higher than the air temperature outside the canister. When weight is removed from the lid, the gas

expands to lift it.

For this expansion to be as nearly adiabatic as possible, one of the conditions that should be met is that there should be no supply of thermal or heat energy to the system.

According to first law of thermodynamics:

Change in internal energy = heat supply + work done by the system

If heat supplied = 0

Then, nothing is constant.

The internal energy = work done by the system.

Therefore, no heat should be supplied to the system.

Answer:

Final momentum after a head on collision is -2kgm/

Explanation:

  One ball moves to the right and the other moves opposite  and momentum is a vector quantity so that considering the direction

Initial momenta are        P₁=2x3=6kgm/s        P₂=4x(-2)=-8kgm/s      

Final momentum is the vector sum of P(final)= 6-8= -2 kgm/s

Answer:

Where is the diagram????

Answer:

reflection

Explanation:

Answer:

I can help with the last question.

Explanation:

The force from the ball on the left ball will hit the ball next to it, bringing the force all the way to the right ball, and vice versa. Have a great day!

Answer:

gravity is pulls objects to the center of the earth.

friction is slows or stops motion when objects rub together.

magnetism is pushes or pulls objects containing iron or other metals.

Answer: clastic sedimentary rock

Explanation: Hope this helps!

Answer:

Substance A will release more heat.

Explanation:

Let suppose that both substances experiment an entirely sensible heat process and are incompressible and begin at the same temperature. Physically speaking, specific heat ([tex]c[/tex]), measured in kilojoules per kilogram-degree Celsius, can be described by following expression:  

[tex]c = \frac{Q}{m\cdot (T_{f}-T_{o})}[/tex] (1)

Where:

[tex]Q[/tex] - Released heat, measured in kilojoules.

[tex]m[/tex] - Sample mass, measured in kilograms.

[tex]T_{o}[/tex], [tex]T_{f}[/tex] - Initial and final temperatures of the sample, measured in degrees Celsius.

If we know that [tex]c_{A}> c_{B}[/tex], [tex]m_{A} = m_{B}[/tex], [tex]T_{A,o} = T_{B,o}[/tex] and [tex]T_{A,f} = T_{B,f}[/tex], then we have the following inequation:

[tex]\frac{Q_{A}}{m\cdot (T_{A,f}-T_{A,o})} > \frac{Q_{B}}{m\cdot (T_{B,f}-T_{B,o})}[/tex]

[tex]Q_{A} > Q_{B}[/tex]

Substance A will release more heat.

Answer:

hjd

Explanation:

Answer:

Thin, aluminium and buried underground.

Explanation:

When it comes to electrification of a state or province, some characteristics of the wire to use must be considered. This would help to minimize and avoid power loss and wire burns.

i. The wire to use should be thin, and a quite number can be twisted one against the other so as to increase the surface area for heat dissipation.

ii. Aluminium wire is more preferable for this project. It has a high melting point, and reduces energy loss.

iii. Burying the wire underground through an insulator is the best choice, though expensive but would preserve the wire from external influence.

Answer:

1.parked car 2.car moving 50 km/h 3.train moving at 50 km\h 4.train moving at 80km\h

1.parked car 2.car moving 50 km/h 3.train moving at 50 km\h 4.train moving at 80 km\h is increasing momentum order.

In Newtonian mechanics, momentum is the product of the mass and velocity of an object. It is a vector quantity, possessing a magnitude and a direction. If m is an object's mass and v is its velocity, P = mv.

The total momentum experienced by the object depends on the force acting on it. The momentum remains unchanged in the absence of external forces.

1.parked car 2.car moving 50 km/h 3.train moving at 50 km\h 4.train moving at 80 km\h is increasing momentum order.

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Answer:

If one of the filaments burns out, the resistance and the potential difference across the other lamps will not change; therefore, their currents will remain the same.

Explanation:

Answer: