How would you measure and compare the size of the two balls ?

Answer:

Explanation:

acceleration of the boat  a = (10 - 0) / 5 = 2 m /s²

Let tension in the rope be T

Horizontal component = T cos20

force acting on boat = T cos20 - 500

applying newton's law

T cos20 - 500 = mass x acceleration

T cos20 - 500 = 1000 x 2 = 2000

T cos20 = 2500 N .

T x .94 = 2500

T = 2660 N .

Answer:

d. m

Explanation:

This question involves the concepts of mass, Law of conservation of mass, and altitude.

The mass of the astronaut orbiting in the space shuttle is "d. m".

The mass of an object is defined as the quantity of matter contained inside a body. According to the law of conservation of mass, the mass of a body remains constant everywhere in the universe.

The quantity that changes with the change in location, is weight. The change in weight is caused by the change in acceleration due to gravity, which varies from planet to planet and also varies with altitude.

Thus, the mass of the astronaut will remain constant.

Learn more about the law of conservation of mass here:

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Answer:

6. 3.9 km SE

7. 17 km NE

8. 3496 seconds

9. 36 m

10. 13.27 km/m

Explanation:

6. and 7. added both numbers

8. multiplied both numbers

9. 60 x 60 = 3600

3600 x 0.01 = 36

10. 60 x 3 = 180

180 + 10 =190

190 / 14.32 = 13.27

Answer:

1030.3504 units

Explanation:

Disk radius = 7 inches

Density at distance x = p(x) = [tex]\sqrt{10x}[/tex]

Calculate the mass of the two-dimensional object

M = 2[tex]\pi[/tex][tex]\sqrt{10} * (\frac{2}{5} ) *(7)^{\frac{5}{2} }[/tex] = 1030.3504 units

Answer:

In two significant figure 360K

Explanation:

The temperature difference (ΔT) can be calculated as the boiling temperature minus the freezing temperature in Fahrenheit.

Hence,

ΔT = 212 - 32

ΔT = 180°F

To convert to °F to kelvin, we use the formula below

= (°F - 32) × 5/9 + 273.15

= (180°F - 32) × 5/9 + 273.15

= 355.37K ⇔ 360K

Answer:

d. kT ln 3

Explanation:

Given;

k as Boltzmann constant

Let initial initial microstate, = Фi

Let the final microstate, = Фf = 3Фi

at constant temperature, T

The energy input to gas as heat is given by;

Q = TΔS = Tk(lnФf - lnФi)

[tex]Q= kT*\frac{ln \phi _f}{ln \phi_i} \\\\Q= kT*\frac{3ln \phi _i}{ln \phi_i}\\\\Q= kT ln3[/tex]

Therefore, the energy input to gas as heat is kT ln 3

answer:

uhm this makes no sense like at all so chile anyways

explanation:

Answer:

i think this would help (the thing i tagged).

Answer:

hi

Explanation:

Answer:

C) The Earth-Moon CM follows the orbit around the Sun. Earth and Moon rotate around their CM. The radius of rotation of Moon around the CM is much greater than radius of rotation of Earth around the CM.

Explanation:

At first we assume that both Earth and Moon can be treated as particles, the center of mass of the Earth-Moon system is obtained by using this formula:

[tex]r_{CM} = \frac{r_{E}\cdot m_{E}+r_{M}\cdot m_{M}}{m_{E}+m_{M}}[/tex] (Eq. 1)

Where:

[tex]r_{E}[/tex] - Location of the center of the Earth, measured in kilometers.

[tex]r_{M}[/tex] - Location of the Moon, measured in kilometers.

[tex]r_{CM}[/tex] - Location of the center of mass, measured in kilometers.

[tex]m_{E}[/tex] - Mass of the Earth, measured in kilograms.

[tex]m_{M}[/tex] - Mass of the Moon, measured in kilograms.

If we know that [tex]r_{E} = 0\,km[/tex], [tex]r_{M} = 3.84\times 10^{8}\,m[/tex], [tex]m_{E} = 5.98\times 10^{24}\,kg[/tex] and [tex]m_{M} = 7.35\times 10^{22}\,kg[/tex], the location of the center of mass respect to the Earth is:

[tex]r_{CM} = \frac{(0\,km)\cdot (5.98\times 10^{22}\,kg)+(3.84\times 10^{8}\,m)\cdot (7.35\times 10^{22}\,kg)}{5.98\times 10^{24}\,kg+7.35\times 10^{22}\,kg}[/tex]

[tex]r_{CM} = 4.662\times 10^{6}\,m[/tex]

The Earth has a radius of [tex]6.371\times 10^{6}[/tex] meters, we notice that center of mass in located inside the Earth and the radius of rotation of the Earth around the center of mass is much greater than the radius of rotation of the Moon around the center of mass. That center of mass follows an orbit around the sun.

In consequence, correct answer is C.

The distance from the center of the Earth is the Center of Mass of the Earth-Moon system located is 4.662×10⁶ m.

The center of mass of a object or for a system of object is the point, where the center of distribution of mass in space. The center of mass for the two bodies can be given as,

It can be given as,

[tex]x_{cm}=\dfrac{m_1x_1+m_2x_2}{m_1+m_2}[/tex]

Here, (m) represents the mass and (x) represents the distance.

The masses of the Earth and Moon are 5.98×1024kg and 7.35×1022kg respectively,The centers of the Moon and Earth are separated by 3.84×108m.

Thus the center of mass with respect to Earth using the above formula can be given as,

[tex]x=\dfrac{(5.98\times10^{22})(0)+7.25\times10^{22}(3.84\times10^8)}{5.98\times10^{22}+7.25\times10^{22}}\\x=4.662\times 10^6\rm m[/tex]

The motion of the Earth-Moon system about the Sun is less than the Earth and Moon separately about the Sun is, due to the center of rotation of the earth.

Thus, the Earth-Moon CM follows the orbit around the Sun. Earth and Moon rotate around their CM. The radius of rotation of Moon around the CM is much greater than the radius of rotation of Earth around the CM. Option C is correct.

Thus, the distance from the center of the Earth is the Center of Mass of the Earth-Moon system located is 4.662×10⁶ m.

Learn more about the center of mass here;

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Answer:

Heat content

Explanation:

Heat doesnt need an object to be large or small, for example a lump of coal is hotter and smaller than a big piece of brick.

Answer:

A.No. Assuming no other factors (such as air resistance) the first object will have a velocity of 32 feet/second when the other is dropped. Since they will both have the same acceleration, the first distance between them will increase by 32 feet per second.

Explanation:

Answer:

See the answer below

Explanation:

The optimal conditions for high biodiversity seem to be a warm temperature and wet climates.

The tropical areas of the world have the highest biodiversity and are characterized by an average annual temperature of above 18 [tex]^oC[/tex] and annual precipitation of 262 cm. The areas are referred to as the world's biodiversity hotspots.

Consequently, it follows logically that the optimal conditions for high biodiversity would be a warm temperature of above 18 [tex]^oC[/tex] and wet environment with annual precipitation of not less than 262 cm.

The variation in temperature and precipitation across biomes can thus be said to be responsible for the variation in the level of biodiversity in them.

Answer:They have made community members shareholders so they get a share of the profits, which they use for schools and healthcare clinics

Explanation: Edmentum

Answer:

shareholders of the community get profits and that is used for schools and healthcare clinics. cs. 

Explanation:

Answer:

Option iv

Explanation:

The acceleration due to gravity (g) of the earth is constant (i.e 9.81 ms¯²). As long as the stone remains within the earth, the acceleration due to gravity experienced by the stone will be 9.81 ms¯².

The maximum height reached by an object is the height where the object no longer have velocity to move further hence it begins to fall back. At this point (i.e at the maximum height), the velocity of the object is zero.

Summary:

At maximum height:

Acceleration due to gravity of the stone = 9.81 ms¯²

Velocity = 0

Thus, option iv gives the correct answer.

Answer:

The displacement of the canoe is 1.46 m

Explanation:

Given that,

Mass of canoe = 61 kg

Mass of man = 86.5 kg

Length = 4 m

Let the the displacement of the canoe is x'

We need to calculate the displacement of the man

Using formula of displacement

[tex]x=x_{2}-x_{1}[/tex]

Put the value into the formula

[tex]x=4-(0.75+0.75)[/tex]

[tex]x=2.5\ m[/tex]

We need to calculate the displacement of the canoe

Using conservation of momentum

[tex]M_{m}v_{m}=(M_{c}+M_{m})v_{c}[/tex]

[tex]M_{m}\dfrac{x}{t}=(M_{c}+M_{m})\dfrac{x'}{t}[/tex]

[tex]86.5\times2.5=(61+86.5)\times x'[/tex]

[tex]x'=\dfrac{86.5\times2.5}{61+86.5}[/tex]

[tex]x'=1.46\ m[/tex]

Hence, The displacement of the canoe is 1.46 m

Answer:

dirty deeds done dirt cheap goes to different dimensions with american flag,and usually grabs alternate versions of his user

Explanation:

Answer:

Daga Kotowaru

Explanation:

One of my favourite things to say is to say No to people who desparately need help

Complete Question

An L-C circuit has an inductance of 0.350 H and a capacitance of  0.290 nF . During the current oscillations, the maximum current in the inductor is 2.00 A .

What is the maximum energy [tex]E_{max}[/tex] stored in the capacitor at any time during the current oscillations?

Express your answer in joules.

Answer:

The value is   [tex]E_{max} =   0.7 J [/tex]

Explanation:

From the question we are told that

   The inductance is [tex]L  =  0.350 \  H[/tex]

    The capacitance is [tex]C =  0.290 \ nF =  0.290 *10^{-9 } \ F[/tex]

   The current is  [tex]I  = 2 \ A[/tex]

Generally the maximum energy is mathematically represented as

        [tex]E_{max} =  \frac{1}{2}  *  L  *  I^2[/tex]

=>       [tex]E_{max} =  \frac{1}{2}  *   0.350  *  2^2[/tex]

=>     [tex]E_{max} =   0.7 J [/tex]

Answer:

Explanation:

Brownian motion is evidence that air molecules move in random directions, with random speeds (and hence kinetic energy).  When these air molecules knock into the smoke particles, they cause the smoke particles to move in random motions.

Why can't we see the air molecules themselves?  That's because the air molecules are invisible, even with microscopes

Answer:

its true trust me

Explanation:

Answer: true

Explanation: edge

Answer:

VB

Explanation:

Answer:

Force Exerted by Sedan on Truck = - F

Explanation:

This question can easily be solved by using Newton's Third Law of Motion. Newton's Third Law of Motion clearly states that for every action force there exists an equal in magnitude reaction force. However, the direction of the reaction force is opposite to the direction of the action force. Mathematically,

Action Force = - Reaction Force

Hence, we have here:

Force Exerted by Semi Truck on Sedan = F

So, from Newton's Third Law of motion:

Force Exerted by Sedan on Truck = - Force Exerted by Semi Truck on Sedan

Force Exerted by Sedan on Truck = - F

It is highly recommended that this friend who is suffering from insomnia visits the doctor and eat foods rich in serotonin.

Insomnia is a medical condition in which an individual is unable to sleep or has short periods of interrupted sleep.

A friend who falls asleep easily and then has difficulty going to sleep is probably suffering from insomnia.

It is recommended that this friend who is suffering from insomnia visits the doctor and eat foods rich in serotonin.

Learn more about insomnia at: https://brainly.com/question/816019

Complete question is;

Jason works for a moving company. A 75 kg wooden crate is sitting on the wooden ramp of his truck; the ramp is angled at 11°.

What is the magnitude of the force, directed parallel to the ramp, that he needs to exert on the crate to get it to start moving UP the ramp?

Answer:

F = 501.5 N

Explanation:

We are given;

Mass of wooden crate; m = 75 kg

Angle of ramp; θ = 11°

Now, for the wooden crate to slide upwards, it means that the force of friction would be acting in an opposite to the slide along the inclined plane. Thus, the force will be given by;

F = mgsin θ + μmg cos θ

From online values, coefficient of friction between wooden surfaces is μ = 0.5

Thus;

F = (75 × 9.81 × sin 11) + (0.5 × 75 × 9.81 × cos 11)

F = 501.5 N

Answer:

6.38×10¯⁴ Calorie.

Explanation:

The following data were obtained from the question:

Power (P) = 77 W

Time (t) = 8 h

Energy (E) =.?

Next, we shall convert 8 hours to seconds. This can be obtained as follow:

1 h = 3600 s

Therefore,

8 h = 8 h × 3600 s / 1h

8 h = 28800 s

Next, we shall determine the energy. This can be obtained as follow:

Power (P) = 77 W

Time (t) = 28800 s

Energy (E) =.?

Energy (E) = Power (P) / time (t)

E = P/t

E = 77 /28800

E = 2.67×10¯³ J

Finally, we shall convert 2.67×10¯³ J to calorie. This can be obtained as follow:

4.184 J = 1 calorie

Therefore,

2.67×10¯³ J = 2.67×10¯³ J × 1 Cal / 4.184 J

2.67×10¯³ J = 6.38×10¯⁴ Calorie.

Therefore, 6.38×10¯⁴ Calorie of food is used during the 8 hours period.

Answer:

2.0 m

Explanation:

Energy is conserved.

Initial KE = Final PE + Work done by friction

½ mv² = mgh + Fd

½ mv² = mgh + mgμd

½ v² = gh + gμd

½ v² − gh = gμd

d = (½ v² − gh) / (gμ)

d = (½ (7.5 m/s)² − (10 m/s²) (2.1 m)) / ((10 m/s²) (0.35))

d = 2.0 m