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Answer:

El peso de la persona B es la mitad del peso de la persona A.

Explanation:

El peso de la persona B puede calcularse con la siguiente ecuación:

[tex] P_{B} = m_{B}g [/tex]   (1)

En donde:

[tex]m_{B}[/tex]: es la masa de la persona B

g: es la gravedad

Dado que la persona B tiene la mitad de la masa de la persona A, tenemos:

[tex] m_{B} = \frac{m_{A}}{2} [/tex]  (2)

En donde:

[tex]m_{A}[/tex]: es la masa de la persona A

Al introducir la ecuación (2) en (1) nos queda:

[tex] P_{B} = \frac{m_{A}}{2}g [/tex]   (3)

Sabemos que el peso de la persona A está dado por:

[tex] P_{A} = m_{A}g [/tex]   (4)

Entonces, al introducir la ecuación (4) en (3) tenemos:

[tex] P_{B} = \frac{P_{A}}{2} [/tex]

Por lo tanto, el peso de la persona B es la mitad del peso de la persona A.

Espero que te sea de utilidad!

Answer:

Answer:It is due to tyndall effect that the path of a light ray passing through a suspension is visible. The particles in suspension scatter the beam of light making it clearly visible.

Answer:

it is due to the Tyndall effect so the path of light is visible in a suspension but in solution the path of light is not visible

Answer:

W = 170.62 N

Explanation:

The given question is, "calculate the weight of a person traveling to the moon whose mass is 105 kg".

We need to find the weight of a person on the Moon.

The weight of an object is given by :

W = mg

Where

g is acceleration due to gravity on Moon, g = 1.625 m/s2

W = 105 kg × 1.625 m/s²

W = 170.62 N

Hence, the weight of the person is 170.62 N.

Explanation:

during the daytime the land gets hot and the hot air blows up to the sky and to feel the space the cool you are from the Sea blows to the land this phenomenon is called sea breeze similarly at night the hot air of sea goes up n cool air from land blows to sea which is called land breexe

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AnswER PIZZA?

Explanation:

Answer:

Distance = 36 meters

Explanation:

Given the following data;

Work done = 2,340,000 Joules

Force = 65,000 Newton

To find the distance covered by the crane;

Mathematically, work done is given by the formula;

[tex] Workdone = force * distance[/tex]

Substituting into the formula, we have;

[tex] 2340000 = 65000 * distance [/tex]

[tex] Distance = \frac{2340000}{65000}[/tex]

Distance = 36 meters

We each have a unique voice because so many factors work together to produce that voice. As air passes over them, the vocal cords vibrate very quickly to produce sounds. The higher the rate of vibration, called frequency, the higher the pitch will be.

Answer:

V = 50 volts

Explanation:

Given that,

Resistance, R = 10 ohms

Current, I = 5 A

We need to find the potential difference across the circuit. We know that,

V = IR

Put all the values,

V = 5 × 10

V = 50 volts

Hence, the potential difference is equal to 50 volts.

Answer:

100N

Explanation:

the limiting frictional force acts in the opposite direction and is equal to the force applied

frictional force=100N

Suppose if we were pushing on a heavy bucket of stones it 100 N of force, and it did not move then 100 Newtons of force would be balancing the force that we were applying.

Friction is a type of force that resists or prevents the relative motion of two physical objects when their surfaces come in contact.

The friction force prevents any two surfaces of objects from easily sliding over each other or slipping across one another. It depends upon the force applied to the object.

The limiting friction is the frictional force which comes into play when the object is just about to move due to the effect of the externally applied force, limiting frictional force balance the externally applied force up to a state when the object does not move.

The value of friction force also depends on the coefficient of friction which depends on the roughness of the surface, the coefficient of the limiting friction is less than that of the coefficient of the kinetic friction.

As given in the problem statement that supposes if we were pushing on a heavy bucket of stones it 100 N of force, and it did not move then 100 Newtons of force would be balancing the force that we were applying because of the limiting friction.

Learn more about friction from here link given below

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Answer:

the distance traveled by the sports car is 90 m

Explanation:

Given;

mass of the sports car, m = 500 kg

initial velocity of the sports car, u = 0

final velocity of the sport car, v = 30 m/s

time of motion of the car, t = 6 s

The distance traveled by the sports car is calculated as;

[tex]s = (\frac{u+v}{2} )t\\\\s = (\frac{0+30}{2} ) \times 6\\\\s = 15 \times 6\\\\s = 90 \ m[/tex]

Therefore, the distance traveled by the sports car is 90 m

Answer:

1.47 J/kg

120 m

Explanation:

The maximum height it can jump in a single leap 15 cm, = 0.15 m

to get the kinetic energy per kg of mass, we need to find the takeoff speed. The take off speed can be calculated by using the formula

v = [tex]\sqrt{2gh}[/tex]

where h = 0.15

v = [tex]\sqrt{2 * 9.81 * 0.15}[/tex]

v = [tex]\sqrt{2.94}[/tex]

v = 1.715 m/s

energy per kg of mass =

1/2 * (1.715) = 1.47 J/Kg

TJe height a human can jump when compared to the flea is

2 m/2.5 mm * 15 cm =

2/0.0025 *0.15 =

800 * 0.15 = 120 m

Answer:

Watts

Explanation:

The SI unit for power is the watt (W), where 1 watt equals 1 joule/second (1 W=1 J/s).

Answer:

15 m

Explanation:

We'll begin by calculating the speed of the wave. This can be obtained as follow:

Time = 5 s

Distance = 15 m

Speed =?

Speed = distance / time

Speed = 15 / 5

Speed = 3 m/s

Finally, we shall determine the distance between the crests of the wave. This can be obtained as follow:

Speed (v) = 3 m/s

Frequency (f) = 0.2 Hz

Distance between the crest (λ) =?

v = λf

3 = λ × 0.2

Divide both side by 0.2

λ = 3 / 0.2

λ = 15 m

Therefore, the distance between the crests of the wave is 15 m

Answer:

Explanation: a

Answer:

the force of attraction between all masses in the universe

Explanation:

Have a nice day :)

Explanation:

Energy stored in an object due to its position is Potential Energy. Energy that a moving object has due to its motion is Kinetic Energy.

Answer:

Her acceleration is 0 m/s²

Explanation:

We note that the motion of the girl is on a straight road, therefore;

The vertical acceleration (e.g. due to gravity, g) on the horizontal motion = 0

The horizontal acceleration, a = (Change in velocity, Δv)/(Change in time, Δt)

For uniform velocity, the change in velocity, Δv = 0

Therefore, fore any change in time, Δt, we have;

a = Δv/Δt

Her acceleration, a = 0/Δt = 0

Her acceleration, a = 0 m/s²

velocity after 2 seconds?

I assume the units are wrong: a = 2 m/s/s, not 2 m/s.

That means the each second, speed increases by 2 m/s. So, after 1 second, it’s going 2 m/s and after 2 seconds, it’s going 4 m/s. As long as the acceleration continued, each seconds would result in a gain of 2 m/s. You could just plug this into:

Vf = Vi + at.

Thus, Vi = 0 and Vf = 4 m/s.

The average speed during these 2 seconds is the average of initial and final speeds:

Vavg = (0 + 4)/2 = 2 m/s

The means that during these 2 seconds, on AVERAGE the bus was going 2 m each second. During the first second, it was going slower than 2 m/s and during the last second it was going faster than 2 m/s, but on AVERAGE, it was going 2 m each second. This is 2m + 2m = 4 m.

You could just plug the numbers into an equation:

X = Vi x t + 1/2 at^2 = 0 + 1/2 x 2 x 2^2 = 0 + 4 = 4 m

So, in conclusion:

the units needed to be corrected

Vf = 2 m/s (this is speed, which is the AMOUNT of velocity, since velocity requires a direction)

Distance = 4 m

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Answer:

Answer is option 3 or

Explanation:

Diagram 2 best represents the charge distribution on the smaller sphere. Therefore, the correct option is option 2.

Charge is a physical attribute that causes matter in such an electromagnetic field to experience a force. Electric charges can be either positive or negative.

If there is no net electric charge, the substance is termed neutral or uncharged. Like charges repel each other (for example, two positive charges repelling two negative charges). Charges with opposing charges (positively and negatively) attract each other. Diagram 2 best represents the charge distribution on the smaller sphere.

Therefore, the correct option is option 2.

To know more about charge, here:

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Answer:

Number of neautrons

Explanation:

Atoms from two different elements may have the same number of neutrons, but never the same number of protons. The number of protons is unique to the element and represents the atomic number. (sorcastic.org)

Answer:

C.

Explanation:

Answer:

f₁ = 1 Hz

f₂ = 0.75 Hz

Explanation:

The given time lapse between the two frequencies, t = 2 s

The frequency of a wave is the number of complete one cycles of the wave that pass through a given point in a given unit of time

The unit of frequency, 'f', is the Hertz, Hz

Therefore, frequency = Number of cycles/(Time)

The frequency of a wave, f = n/t

Where;

n = The number of completed cycles in a given time

The frequency of the first wave 1, f₁

The number of complete cycles by wave 1 in the 2 seconds, n = 2 cycles

The time, t = 2 seconds

The frequency of wave 1, f₁ = 2 cycles/(2 seconds) = 1 cycle/second = 1 Hz

The frequency of the second wave, wave 2, f₂

The number of complete cycles by wave 2 in the 2 seconds, n = 1 and half cycles = 1.5 cycles

The time, t = 2 seconds

The frequency of wave 2, f₂ = 1.5 cycles/(2 seconds) = 0.75 cycle/second = 0.75 Hz

the answer is Jupiter

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Answer:

The mnemonic I can use to memorize the metric prefixes in this order is: Gigantic Monsters Killed One Million Men Napping Peacefully. All right, so again, gigantic monsters killed one million men napping peacefully.

Answer:

the forces are proportional to their areas of application

Explanation:

In a hydraulic jack, Pascal's principle is used, that the pressure in an incompressible liquid is the same at the same height, whereby the pressure on both sides of the jack are the same

           P₁ = P₂

the pressure is defined by

            P = F / A

we substitute

           [tex]\frac{F_1}{A_1} = \frac{F_2}{A_2}[/tex]

           F₂ = [tex]\frac{A_2}{A_1} \ F_1[/tex]

therefore the force is F₂> F₁

Therefore the forces are proportional to their areas of application

Answer:

Se requiere corriente para que brille la luz.

Explicación:

Una batería de 1,5 voltios está conectada a una luz LED roja, el LED se enciende siempre que esté conectado a la batería. A partir de esta situación se afirma que se requiere corriente para que brille la luz. La batería tiene corriente eléctrica almacenada que permite que la luz brille hasta que la corriente eléctrica esté presente en la batería. Esta batería se puede cargar durante un período de tiempo cuando está llena, se puede recuperar durante muchas horas.

Explanation:

A lightning rod (US, AUS) If lightning hits the structure:-

It will preferentially strike the rod and be conducted to ground through a wire.

Instead of passing through the structure, where it could start a fire or cause electrocution.

The parts of a lightning protection system are air terminals (lightning rods or strike) and all of the connectors and supports to complete the system.

Answer:

-6,5 ms ^ 2

Explanation:

Dado que;

Velocidad inicial (u) = 93,6 m / s

Velocidad final (v) = 0 m / s

aceleración (a) =?

tiempo empleado (t) = 14,4 segundos

De;

v = u + en

0 = 93,6 + 14,4a

a = -93,6 / 14,4

a = -6,5 ms ^ 2

Answer:

A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects. ... Forces only exist as a result of an interaction.

Answer:

The idea behind space expansion is that after the big bang, the universe started infinitely expanding. It's also called metric expansion. Stephen Hawking's A Brief History of Time goes further into detail on this.