How much of the Moon is always illuminated one time? Explain your answer.

Answer:

w = 0.196 rad / s

Explanation:

To generate an acceleration similar to that of the earth, the station's centripetal acceleration must be equal to the acceleration due to gravity.

               a_c = v² / r = w² r

               a_c = g

we substitute

               g = w² r

               w² = g / r

               w = [tex]\sqrt { \frac{g}{r} }[/tex]

let's calculate

               w = √9.8/50

               w = 0.196 rad / s

therefore the station must rotate at that angular velocity so that the acceleration in the outer wall is equal to the ratio of gravity

Answer:

h = 30.61 m

Explanation:

In this problem they indicate the pressure at the bottom of the lake and the density of the water, for which they must ask what is the depth of the lake.

The pressure is given by the expression

           P = [tex]P_{atm}[/tex] + rho g h

           P - P_{atm} = rho g h

The gauge pressure value is P- P_{atm} = 3 105 N / m²

          h = [tex]\frac{P - P_{atm}}{ \rho \ g}[/tex]

let's calculate

          h = [tex]\frac{3 \ 10^5}{1000 \ 9.8}[/tex]

          h = 30.61 m

Answer:

The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.

Explanation:

Answer:

Hey mate....

Explanation:

This is ur answer.....

According the NASA's StarChild Website, "The universe is a vast open space which contains all of the matter and energy in existence. The universe contains all of the galaxies, nebulae, stars, and planets. The exact size of the universe is unknown. Scientists believe the universe is still expanding outward.

The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.

Hope it helps u,

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Answer:

KE = 1/2 * m * [tex]v^{2}[/tex]

Explanation:

use the formula:

KE = 1/2 * m * [tex]v^{2}[/tex]

KE = kinetic energy in joules (J)

m = mass in kg

v = velocity in m/s

Answer:

KE=1/2mv^2

Explanation:

I hope this helps it's just the formula.

KE=1/2×mass×velocity^2

Answer:

the answer would be c sry if it is wrong

Explanation:

Mass =150g = 0.15kg

Volume= 35cm^3 = 0.35m^3

Density= Mass×Volume

= 0.15kg × 0.35m^3

= 0.05 kg m^3

Answer:

Final velocity of ball B V2 = 8 m/s

Explanation:

Given:

Mass of Ball A M1 = 12 gram

Mass of Ball B M2 = 36 gram

Initial velocity of ball A U1 = 15 m/s

Initial velocity of ball B U2 = 5 m/s

Final velocity of ball A V1 = 6 m/s

Find:

Final velocity of ball B V2

Computation:

Using conservation of momentum;

M1U1 + M2U2 = M1V1 + M2V2

(12)(15) + (36)(5) = (12)(6) + (36)(v2)

180 + 180 = 72 + (36)(v2)

Final velocity of ball B V2 = 8 m/s

Answer:

A, C, D

Explanation:

A, C and D are true.

B is false as energy can neither be created nor destroyed.

Answer:

1450.4 KN[tex]m^{2}[/tex]

Explanation:

Pressure = ρhg

where: ρ is the density of the liquid, h is the height and g the force of gravity.

Total pressure exerted by the liquids at the base = Pressure of oil + Pressure of water + Pressure of mercury

So that,

i. Pressure of oil = ρhg

(ρ = 0.8 g/cm³ = 800 kg/m³)

                        = 800 x 5 x 9.8

                        = 39200

Pressure of oil = 39200 N[tex]m^{2}[/tex]

ii. Pressure of water = ρhg

(ρ = 1 g/cm³ = 1000 kg/m³)

                                      = 1000 x 8 x 9.8

                                     = 78400

Pressure of water = 78400 N[tex]m^{2}[/tex]

ii. Pressure of mercury = ρhg

(ρ = 13.6 g/cm³ = 13600 kg/m³)

                      = 13600 x 10 x 9.8

                      = 1332800

Pressure of mercury = 1332800 N[tex]m^{2}[/tex]

So that,

Total pressure exerted by the liquids at the base = 39200 + 78400 + 1332800

                                               = 1450400

                                               = 1450.4 KN[tex]m^{2}[/tex]

Total pressure exerted by the liquids at the base is 1450.4 KN[tex]m^{2}[/tex].

Answer:

B: Pure Substance

Explanation:

Many reasons. Here are a couple:

1.) Water depth for the draft of incoming ships/vessels so they do not run aground.

2.) Distance between sea level and bottom of structures such as bridges for vessels passing underneath.

Answer:

30,000 kgm/s

Explanation:

m = 1000 kg

v = 30 m/s

Plug those values into the equation:

p = mv

p = (1000 kg)(30 m/s)

p = 30,000 kgm/s

The momentum of a 1000 kg sports car traveling at 30 m/s is 30,000 kgm/s.Linear momentum = Mass x Speed.

The product of an object's mass, m, and its velocity, v, is the vector quantity known as linear momentum. It is represented by the letter "p," which is also used to denote momentum.

Mass of car = 1000 kg

Speed by which car moves = 30 m/s. The momentum of the car =?

Recall that:

Linear momentum = Mass x Speed

= 1000 kg x 30 m/s.

= 30,000 kgm/s

The sum of an object's mass (m) and velocity (v) is known as the object's linear momentum. An equation can be used to explain this relationship. Momentum is defined as the body's mass times its velocity. P = m times v, etc.

Therefore,  the momentum of a 1000 kg sports car is 30,000 kgm/s if travels at 30 m/s.

Learn more about momentum, here:

https://brainly.com/question/15350658

#SPJ2

Answer:

table 1:

1. 100/15 = 6.7 m/s

2. 100/12 = 8.3 m/s

3. 100/9 = 11.1 m/s

table 2:

1. 100/8 = 12.5 m/s

2. 100/6 = 16.7 m/s

3. 100/4 = 25 m/s

Explanation:

Answer:

Warm matter

Explanation:

Atoms in warm matter are more easily excitable - they jiggle and move more rapidly than atoms in a cold environment, and since a sound wave is a wave of vibrating matter, these waves will naturally travel quicker when it's warmer.

Answer:

The point at which rays or waves meet after reflection or refraction, or the point from which diverging rays or waves appear to proceed is called focal point

Answer:

The voltage drop across each resistance is the same as the applied one. Hence most of the supplied voltage (the electrical energy) reaches the bulb. Hence it glows brighter. Now in the case of series combination of resistors, the effective resistance of the circuit increases.

Explanation: Discuss your theory on why the light bulbs in the combination circuit have

different brightness.

Answer:

At B

Explanation:

If it's placed on place B as soon as the cold water arrived it will have time to heat. Hope this helps and best of luck

Answer:

B) The ionic charge of the elements changes from positive to negative

Explanation:

In the case when there is a moving towards downward direction from fluorine to chlorine on the periodic table so this represent that there are an ionic elements charge varies i.e. from positive to negative

Therefore as per the given situation the option b is correct

And, the rest of the options are wrong

Answer:

b

Explanation:

i took the test

The relationship between kinetic energy and speed is directly proportional.

The given problem is based on the Kinetic energy. The energy possessed by any object by virtue of its motion is known as kinetic energy of an object. The mathematical expression for the kinetic energy is given as,

[tex]KE = \dfrac{1}{2}mv^{2}[/tex]

Here,

m is the mass of object.

v is the speed of object.

the mass of any object remains constant. Then, the kinetic energy is given as,

[tex]KE \propto v^{2}[/tex]

Thus, we can conclude that the kinetic energy is directly proportional to the square of speed of object.

Learn more about the kinetic energy here:

https://brainly.com/question/17858145

Answer:

read this it might help some

When a moving object collides with a stationary object of identical mass, the stationary object encounters the greater collision force. When a moving object collides with a stationary object of identical mass, the stationary object encounters the greater momentum change.

Explanation:

Answer:

B. Not

C. Positively

A. Attraction

Answer:

2. kinetic energy = total energy - potential energy

Explanation:

The total energy of a system is the addition of kinetic and potential energy of the system. Kinetic energy can be regarded as form of energy posses by an object when it's in motion

Total energy = kinetic energy + potential energy

(If we make Kinectic energy the subject of the formula, we have)

kinetic energy = total energy - potential energy

Answer:

kites where invented 2000 AD

so its A. 2000 AD

srry if it's wrong

Answer:

I guess no. A

Explanation:

approximately 2,800 years ago.

Answer:

A

Explanation:

I guess but not sure cause wind is soemthing you can get back electricity is soemthing you can't