I need help picture above

Answer:

R = 1.71 ohms

Explanation:

Two resistors are connected in parallel. There equivalent resistance is given by :

[tex]\dfrac{1}{R}=\dfrac{1}{R_1}+\dfrac{1}{R_2}[/tex]

Put all the values,

[tex]\dfrac{1}{R}=\dfrac{1}{3}+\dfrac{1}{4}\\\\R=1.71\ \Omega[/tex]

So, the resultant resistance of the circuit is equal to 1.71 ohms.

Answer:

13

Explanation:

6+4=10s

50+35=85

av speed=85/10=8.5m/s

Answer:

Power = 20 Watts

Explanation:

Given the following data;

Voltage = 100 V

Resistance = 500 Ohms

To find the power that is required to light a lightbulb;

Mathematically, power can be calculated using the formula;

[tex] Power = \frac {Voltage^{2}}{resistance} [/tex]

Substituting into the formula, we have;

[tex] Power = \frac {100^{2}}{500} [/tex]

[tex] Power = \frac {10000}{500} [/tex]

Power = 20 Watts

Answer:

[tex]A \to rad/s[/tex]

[tex]B \to rad/s^3[/tex]

Explanation:

[tex]\omega_z(t)=A + Bt^2[/tex]

Required

The units of A and B

From the question, we understand that:

[tex]\omega_z(t) \to rad/s[/tex]

This implies that each of [tex]A[/tex] and [tex]Bt^2[/tex] will have the same unit as [tex]\omega_z(t)[/tex]

So, we have:

[tex]A \to rad/s[/tex]

[tex]Bt^2 \to rad/s[/tex]

The unit of t is (s); So, the expression becomes

[tex]B * s^2 \to rad/s[/tex]

Divide both sides by [tex]s^2[/tex]

[tex]B \to \frac{rad/s}{s^2}[/tex]

[tex]B \to rad/s^3[/tex]

Explanation:

first find the volume of room --->

[tex]v \: = 10 \times 12 \times (400 \times {10}^{ - 2} ) \times = 480 \: {m}^{3} [/tex]

then find the mass

[tex]mass \: = \: density \: \times \: volume \: = 480 \times 1.26 = 604.8 \: kg[/tex]

Answer:

La tensión es 85.3 N.

Explanation:

Cuando el objeto gira en dirección horizontal, la sumatoria de fuerzas se puede calcular usando la segunda ley de Newton:  

[tex] \Sigma F_{x} =ma_{c} [/tex]

[tex] T = ma_{c} [/tex]  

Dado que el movimiento es horizontal, el peso (que está en el eje y) no contribuye en la sumatoria de fuerzas en el eje x. Por lo que la única fuerza actuando sobre el objeto en la dirección del movimiento es la tensión.  

En donde:                                          

m: es la masa del objeto = 200 g = 0.200 kg

[tex]a_{c}[/tex]: es la aceleración centrípeta

La aceleración centrípeta viene dada por:  

[tex]a_{c} = \omega^{2} r[/tex]

En donde:    

ω: es la velocidad angular del objeto = 3 rev/s

r: es el radio = 1.20 m

Entonces, la tensión es:

[tex]T = m\omega^{2} r = 0.200 kg(3\frac{rev}{s}*\frac{2\pi rad}{1 rev})^{2}*1.20 m = 85.3 N[/tex]

Por lo tanto, la tensión es 85.3 N.  

Espero que te sea de utilidad!                                                                          

Answer:

The beat frequency is 30 Hz

Explanation:

Given;

velocity of the two sound waves, v = 343 m/s

wavelength of the first wave, λ₁ = 5.72 m

wavelength of the second wave, λ₂ = 11.44 m

The frequency of the first wave is calculated as follows;

F₁ = v/λ₁

F₁ = 343 / 5.72

F₁ = 59.97 HZ

The frequency of the second wave is calculated as follows;

F₂ = v/λ₂

F₂ = 343 / 11.44

F₂ = 29.98 Hz

The beat frequency is calculated as;

Fb = F₁ - F₂

Fb =  59.97 HZ - 29.98 Hz

Fb = 30 Hz

Explanation:

using Ohm's law which is defined as V=IR

where V is the voltage, I is the current and R the resistance

Answer:

2.90 meters

Explanation:

Distance of speaker 2 =?

Distance of speaker 1 = 1.47m

Velocity = 343

f = 240Hz

For constructive interference to occur:

Difference in distance or path = wavelength

For minimum distance, n = 1

Distance 2 - distance 1 = nλ

Recall λ = v/f

V = Velocity ; f = frequency

Distance 2 - distance 1 = v/f

Distance 2 - 1.47 = (343/240)

Distance 2 = 1.429 + 1.47

Distance 2 = 2.899 meters

Minimum Distance of speaker 2 for their to be constructive interference = 2.90meters

Answer: 0.280

Explanation: trust.

Answer:

A lightning flash is at least 270,000 mph (434,523 kph)!

Explanation:

Have a great summer :)

Answer:

670,000,000 mph

Explanation:

The speed of lightning. While the flashes we see as a result of a lightning strike travel at the speed of light (670,000,000 mph) an actual lightning strike travels at a comparatively gentle 270,000 mph

Answer: (A) Science is often used to make new technology that people can sell.

Explanation:

Scientific discoveries serve as a basis for industrial developments of new technologies. That development is very often driven by economical considerations. Viable, well-developed, well-implemented solutions sell.

The history of industrialized world is one treasure trove of examples of (A) (think of your iPhone X selling for $1000 a pop)

Explanation:

Answer:

Hitting the brakes

I guess....

Answer:

if he hits the brakes before it hits the wall then the safest outcome will be that he and his car will be safe.

Answer:

ਹੈਲੋ, ਇੰਡੀਆ ਦਾ ਆਪਣਾ ਵੀਡੀਓ ਐਪ - ਰੋਪੋਸੋ ਤੇ Manjeet Warval ਦਾ ਵੀਡੀਓ ਦੇਖੋ | ਨਾਲ ਹੀ PM ਮੋਦੀ ਦੇ 'ਵੋਕਲ ਫ਼ਾਰ ਲੋਕਲ' ਮੋਹਿਮ ਨੂੰ ਸਫ਼ਲ ਬਣਾਉਣ ਲਈ ਰੋਪੋਸੋ ਤੇ 5 ਕਰੋੜ ਤੋਂ ਜ਼ਿਆਦਾ ਭਾਰਤੀਆਂ ਦੇ ਨਾਲ ਜੋੜੋ| ਹੁਣੇ ਰੋਪੋਸੋ ਐਪ ਡਾਊਨਲੋਡ ਕਰੋ ਅਤੇ 100 ਕੋਇਨਜ਼ ਪਾਣ ਲਈ 24 ਘੰਟੇ ਦੇ ਅੰਦਰ ਸਾਇਨ ਅੱਪ ਕਰੋ|ਹੈਲੋ, ਇੰਡੀਆ ਦਾ ਆਪਣਾ ਵੀਡੀਓ ਐਪ - ਰੋਪੋਸੋ ਤੇ Manjeet Warval ਦਾ ਵੀਡੀਓ ਦੇਖੋ | ਨਾਲ ਹੀ PM ਮੋਦੀ ਦੇ 'ਵੋਕਲ ਫ਼ਾਰ ਲੋਕਲ' ਮੋਹਿਮ ਨੂੰ ਸਫ਼ਲ ਬਣਾਉਣ ਲਈ ਰੋਪੋਸੋ ਤੇ 5 ਕਰੋੜ ਤੋਂ ਜ਼ਿਆਦਾ ਭਾਰਤੀਆਂ ਦੇ ਨਾਲ ਜੋੜੋ| ਹੁਣੇ ਰੋਪੋਸੋ ਐਪ ਡਾਊਨਲੋਡ ਕਰੋ ਅਤੇ 100 ਕੋਇਨਜ਼ ਪਾਣ ਲਈ 24 ਘੰਟੇ ਦੇ ਅੰਦਰ ਸਾਇਨ ਅੱਪ ਕਰੋ|ਹੈਲੋ, ਇੰਡੀਆ ਦਾ ਆਪਣਾ ਵੀਡੀਓ ਐਪ - ਰੋਪੋਸੋ ਤੇ Manjeet Warval ਦਾ ਵੀਡੀਓ ਦੇਖੋ | ਨਾਲ ਹੀ PM ਮੋਦੀ ਦੇ 'ਵੋਕਲ ਫ਼ਾਰ ਲੋਕਲ' ਮੋਹਿਮ ਨੂੰ ਸਫ਼ਲ ਬਣਾਉਣ ਲਈ ਰੋਪੋਸੋ ਤੇ 5 ਕਰੋੜ ਤੋਂ ਜ਼ਿਆਦਾ ਭਾਰਤੀਆਂ ਦੇ ਨਾਲ ਜੋੜੋ| ਹੁਣੇ ਰੋਪੋਸੋ ਐਪ ਡਾਊਨਲੋਡ ਕਰੋ ਅਤੇ 100 ਕੋਇਨਜ਼ ਪਾਣ ਲਈ 24 ਘੰਟੇ ਦੇ ਅੰਦਰ ਸਾਇਨ ਅੱਪ ਕਰੋ|ਹੈਲੋ, ਇੰਡੀਆ ਦਾ ਆਪਣਾ ਵੀਡੀਓ ਐਪ - ਰੋਪੋਸੋ ਤੇ Manjeet Warval ਦਾ ਵੀਡੀਓ ਦੇਖੋ | ਨਾਲ ਹੀ PM ਮੋਦੀ ਦੇ 'ਵੋਕਲ ਫ਼ਾਰ ਲੋਕਲ' ਮੋਹਿਮ ਨੂੰ ਸਫ਼ਲ ਬਣਾਉਣ ਲਈ ਰੋਪੋਸੋ ਤੇ 5 ਕਰੋੜ ਤੋਂ ਜ਼ਿਆਦਾ ਭਾਰਤੀਆਂ ਦੇ ਨਾਲ ਜੋੜੋ| ਹੁਣੇ ਰੋਪੋਸੋ ਐਪ ਡਾਊਨਲੋਡ ਕਰੋ ਅਤੇ 100 ਕੋਇਨਜ਼ ਪਾਣ ਲਈ 24 ਘੰਟੇ ਦੇ ਅੰਦਰ ਸਾਇਨ ਅੱਪ ਕਰੋ|ਹੈਲੋ, ਇੰਡੀਆ ਦਾ ਆਪਣਾ ਵੀਡੀਓ ਐਪ - ਰੋਪੋਸੋ ਤੇ Manjeet Warval ਦਾ ਵੀਡੀਓ ਦੇਖੋ | ਨਾਲ ਹੀ PM ਮੋਦੀ ਦੇ 'ਵੋਕਲ ਫ਼ਾਰ ਲੋਕਲ' ਮੋਹਿਮ ਨੂੰ ਸਫ਼ਲ ਬਣਾਉਣ ਲਈ ਰੋਪੋਸੋ ਤੇ 5 ਕਰੋੜ ਤੋਂ ਜ਼ਿਆਦਾ ਭਾਰਤੀਆਂ ਦੇ ਨਾਲ ਜੋੜੋ| ਹੁਣੇ ਰੋਪੋਸੋ ਐਪ ਡਾਊਨਲੋਡ ਕਰੋ ਅਤੇ 100 ਕੋਇਨਜ਼ ਪਾਣ ਲਈ 24 ਘੰਟੇ ਦੇ ਅੰਦਰ ਸਾਇਨ ਅੱਪ ਕਰੋ|

Answer:

0.675

Explanation:

hope you get it right

Answer:

[tex]0.675\:\mathrm{s}[/tex]

Explanation:

Displacement can be given as [tex]\Delta x=v_x\cdot t[/tex]

Substituting given values, we have:

[tex]27=40t,\\t=\frac{27}{40}=\boxed{0.675\:\mathrm{s}}[/tex]

Answer:

Acceleration. When an external force acts on an object, the change in the object's motion will be directly related to its mass. This change in motion, known as acceleration, depends upon the object's mass and the strength of the external force.

Answer:

Based on what we have learned so far, in what ways have the experiences of Asian-Canadians stayed the same over time? Why do you think these similarities exist? Please give specific examples to support your ideas.

Explanation:

Explanation:

hope it helps thanks

pls mark me as brainliest

Answer: it is B

gravitational attraction between the sun and Venus

Explanation:

Answer:

ΔL = 1.2 10⁻³ m

Explanation:

The expression for thermal expansion is

        ΔL = α L₀ ΔT

in this case it indicates that the length is L₀ = 5 m for T₀ = 20C the final temperature is T_f = 40 C

the table shows the value of thermal expansion for steel α = 12 10⁻⁶ C⁻¹

let's calculate

        ΔL = 12 10⁻⁶  5 (40 -20)

        ΔL = 1.2 10⁻³ m

Answer:

R + 6 ohms

Explanation:

The current is the same in all three resistors

i = 2 amps

The problem is that the total voltage is unknown.

R = r

R1 =3 ohms

R2 = 3 ohms

The voltage drop is E = I*R

I = 2 amps

R1 = 3 ohms

R1 = 3 ohms

E = 3*2 = 6 volts

The second 3 ohm resistor also has 6 volts across it.

The total is 12 volts so far. But we know nothing more on how to solve for R.

All you can say is that the total resistance = R + 6 ohms

Answer:

Virtual and erect.

Answer:

Explanation:

Yes i will agree with the driver and wear safety belts because according to the newtons first law of motion it states that " every body continues to be in its state of rest or uniform motion in a straight line unless it is compledd by some external effort to change that state".So according to this if a bus moves our body also moves beacuse effort is applied when in the moving bus.

acceleration=final velocity - initial velocity/time taken

=(20-10 )/20

=10/20

=0.5 m/s

Answer:

ive never done this befor but i think its 36 times aroud earth a day

Explanation:

384400/400=961  

961% of 27 days is 40minuets

1440/40=36

Answer:

La fuerza es la causa que provoca cualquier cambio en el movimiento o la geometría de los cuerpos. Un cuerpo puede aceptar muchas fuerzas al mismo tiempo, cuyo resultado será en cada punto una fuerza recomendada y un par recomendado. Cuando estas fuerzas se neutralizan entre sí, se dice que el cuerpo está en un estado de equilibrio.

En lo que respecta a los cuerpos libres, la fuerza es generalmente la causa de un cambio en su estado cinético, es decir, que los acelera o ralentiza. Esto también se aplica a su rotación, que puede acelerarse o desacelerarse. Para los cuerpos que no son libres de moverse en todas las formas, es decir, aquellos que están suspendidos en algún lugar y solo pueden moverse alrededor de un punto o eje o en una trayectoria predeterminada, así como aquellos que aplican fuerzas de fricción o reacciones generales de apoyo, nosotros reducir las fuerzas en puntos característicos. En el caso de los cuerpos no libres, la fuerza es la causa que provoca su movimiento o movilidad en relación con sus puntos de apoyo o conexión, o la que provoca su intenso estado, presión o deformación. La inercia de un cuerpo libre también permite que el cuerpo se someta a una tensión, presión o deformación intensas cuando se le aplican las fuerzas correspondientes.

Answer:

because it will help it go and funcion more

Explanation:

Answer:

It uses graivity and momentum because since we all know, gravity pulls things down, they have a chaint hat lifts the carts up, and then when it gets to a top, it releases it. When it goes down very high, it will go faster. Then it uses momentum when it goes up, then down again, or a loop to regain speed. IT doesn't need a engine or a motor to speed it up or slow it down because gravity and momentum is already doing the job a engine could. Like I said, when it is high in the sky and released, it goes down in incredible speed. And when it needs more speed to keep the ride going, it can add a loop or tight turns to increase it more.

Explanation:

everything can be found in the picture

Answer:

Nebulae contribute more to stellar formation than other regions because:

Explanation:

A.They have an unlimited supply of hydrogen.

B. They are believed to be rich in hydrogen and helium.

C. They have a three strong gravitational pull.

This are the reasons that Nebulae contribute more to stellar formation than other regions.

Answer:

Coring is a defect in an alloy (e.g., a copper nickel alloy) that occurs when a heated alloy is cooled too fast for diffusion to occur.

Explanation:

Answer:

P.E=mgh 1020=60×10h 1020=600h 1.7kg