1.1 A book lies on a table. This book is not moving because:
A there are no forces acting on this book.
B the forces acting on the book are in equilibrium.
C the force that the table exerts on the book is greater than the force
that the Earth exerts on the book.
D the force that the book exerts on the Earth has the same magnitude
as the force that the Earth exerts on the book and therefore they
cancel.​

Answer: I dont know Im srry diagram

Explanation:

Diagram baby + baby Diagram = Diagram baby Diagram

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:

In a truss bridge, two long - usually straight members known as chords - form the top and bottom; they are connected by a web of vertical posts and diagonals. The bridge is supported at the ends by abutments and sometimes in the middle by piers.

Explanation:

Hope it helps mark as brainliest pls

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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:

kg·m/s

Explanation:

Answer: kg·m/s

Explanation:

The SI unit for momentum is kg•m/s

Momentum=mass x velocity

Unit for mass=kg

Unit for velocity=m/s

Therefore the unit for momentum is kg•m/s

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:

Concave mirrors reflect light to a central point (converging)

Suppose the source is to the left of the  mirror in  question.

Parallel rays into the mirror are always reflected towards the focal point.

In the case of a concave mirror the real parallel rays pass thru the focal point.

If the mirror is convex the rays will diverge to the left and act as if they were emanating from the focal point to the right of the mirror.

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|

Explanation:

SI system is advantageous over mks system because SI system is intended to extend by its definition and has 7 base which is more than MKS system .

Hope it is helpful to you ☺️

Answer:

Explanation:

SI system is advantageous over mks system because SI system is intended to extend by its definition and has 7 base which is more than MKS system.

Answer:

Explanation:

This is a displacement vector since it is given in terms of a distance (meters, to be specific). The way you find the x-component is:

[tex]V_x=Vcos\theta[/tex] which means you multiply the magnitude (length) of the vector times the cos of the direction (the angle):

[tex]V_x=2.5cos(64)[/tex] to get

1.1 m, choice B.

Answer:

its electric or magnetic fields, i think its electric fields

Hope its right

Answer:

The formula is correct.

Explanation:

The given expression is :

[tex]v^2=2gh[/tex]

Where

v is the velocity

g is acceletion due to gravity

h is height

Taking LHS,

The dimensional formula for [v] = [LT⁻¹]

[v²] = [L²T⁻²]

Taking RHS,

The dimensional formula for [g] = [LT⁻²]

The dimensional formula for [h] =[L]

2gh = [LT⁻²][L]

= [L²T⁻²]

So, LHS =  RHS

So, the given formula is correct dimensionally.

Answer:

Input force of pulley system = 200 N

Explanation:

Given:

Mechanical advantage of pulley system = 5

Output force from pulley system = 1,000 N

Find;

Input force of pulley system

Computation:

Mechanical advantage = Output force / Input force

Mechanical advantage of pulley system = Output force from pulley system / Input force of pulley system

5 = 1,000 / Input force of pulley system

Input force of pulley system = 1,000 / 5

Input force of pulley system = 200 N

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:

chemists say that equilibrium lies to the right as written, favoring the formation of products. An example is the reaction between H2 and Cl2 to produce HCl, which has an equilibrium constant of 1.6×1033 at 300 K

I suppose this is right?

Explanation:

Answer: Pure-Tone Audiometry

Explanation:

Pure-tone audiometry refers to the behavioral test that is used in the measurement of hearing sensitivity. Pure tone audiometry an hearing test that's used in the identification of an individuals hearing threshold levels which is used in determining the degree of a hearing loss and then a basis for diagnosis will be provided.

Therefore, Pure-Tone Audiometry is a procedure that's used for measuring hearing sensitivity at certain frequencies using pure tones presented through an oscillator placed on the forehead or mastoid bone of the listener.

Answer:

In the first one circle : luster

second circle: atsuete seeds

third: dentures

Explanation:

Well I ain’t sure

Experimental evidence that supports the new idea

Explanation:

During the day the sky looks blue because it's the blue light that gets scattered the most. It's redirected into many different directions all over the sky, whereas the other wavelengths aren't scattered as much. Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered more than the other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time. White light is composed of seven light and among them, blue light scatters the most as the wavelength of the blue light is comparable to the size of particles in the atmosphere. So, the sky appears blue. Hence, the sky appears blue because the fine particles in the atmosphere scatter light of shorter wavelengths! :D

Answer:

Explanation:

The formula for the magnitude of a vector is

[tex]B_{mag}=\sqrt{(-1.33)^2+(2.81)^2}[/tex] and then round to the hundredths place:

3.11 m. Since we are in Q2, we can also find the direction of this vector:

[tex]tan^{-1}(\frac{2.81}{-1.33})=-64.7[/tex] but since we are in Q2, we add 180 degrees to the result, getting the angle to be 115.3

Answer:115.33

Explanation:

Answer:

B: C + O2 = CO2

Explanation:

In Chemistry,a synthesis reaction is one that occurs when two or more reactants combine in such a manner that they form a single product.

Looking at the options, the only one where 2 reactants combine to form a single product is option C where Carbon reacts with Oxygen to form carbon (IV) oxide.

Answer:

Solon,

total mass (kg)= 100kg

height (h)= 25m

acceleration due to gravity = 9.8m/s²

so,

work done =m*g*h

= 100*9.8*25

= 24,500 joule

The work done by the crane in lifting the given mass of concrete to the given vertical height is 24500 Joules.

Work done is simply defined as the energy transfer that takes place when an object is either pushed or pulled over a certain distance by an external force. It is expressed as;

W = F × d

Where f is force applied and d is distance travelled.

Note that, the concrete is lifted upward, Weight of the concrete becomes mass multiply by acceleration due to gravity. g = 9.8m/s²

F = Weight = mg

Given that;

W = F × d

W = (mg) × d

W = ( 100kg × 9.8m/s² ) 25m

W = 980kgm/s² × 25m

W = 24500kgm²/s²

W = 24500J

Therefore, the work done by the crane in lifting the given mass of concrete to the given vertical height is 24500 Joules.

Learn more about work done here: brainly.com/question/26115962

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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]

Answer:

Wow, thank you so much! I hope you have a great day!

Answer:

Explanation:

HOPE IT HELPS

Answer:

55.128kg

Explanation:

P= m×v

or, m=P/v = 430/7.8 = 55.128 kg

Answer:

55.13 kg

Explanation:

Momentum, P = m*v

P = m*v

m = P/v

m = 430/7.8

m = 55.13 kg

Answer:

the fish wilil appear to be purple

Explanation:

Answer:

Power generate by generator = 265 W (Approx.)

Explanation:

Given:

Mass of student = 62 kg

Height of stairs = 3.4 meter

Time taken = 7 second

Find:

Power generate by generator

Computation:

Power = Force x [Distance / Time]

Power = [Mass x gravitational acceleration] x [Distance / Time]

Power = [62 x 9.8][3.4/7]

Power = [607.6][3.4/7]

Power = 265.12

Power generate by generator = 265.12

Power generate by generator = 265 W (Approx.)