If the object represented by the FBD below has a mass of 2.5 kg, what is the acceleration of the object?

Explanation:

I think a) Waste product and b) 80%

Answer:

I)  the correct one is A

II)  the alternatives C

III) corresponds to option D

IV)  alternative B

Explanation:

Various information can be obtained from the speed versus time graphs

* If the graph is an inclined line, the speed is constant

* if the graph is a horizontal line the velocity is zero

In this case, the first graph (I) has two parts: an inclined line that corresponds to a uniform movement with speed and a second one, so that it is a horizontal line that indicates that the body is stopped.

If we see the different alternatives, the correct one is A

The second graph (II) has a movement with constant speed second period of being stopped

This graph corresponds to the alternatives C

The third graph (III) the body moves at constant speed without stopping

This corresponds to option D

The fourth graph (IV) the body moves with a slow speed and after 40 s it stops

This graph is associated with alternative B

Answer:

there it is fella

And that's according to ma observation

Answer:

I. Stopping acceleration = 6 m/s²

II. Stopping distance, S = 75 meters

Explanation:

Given the following data;

Final velocity = 30 m/s

Time = 5 seconds

To find the stopping acceleration;

Mathematically, acceleration is given by the equation;

[tex]Acceleration (a) = \frac{final \; velocity - initial \; velocity}{time}[/tex]

Substituting into the equation;

[tex]a = \frac{30 - 0}{5}[/tex]

[tex]a = \frac{30}{5}[/tex]

Acceleration = 6 m/s²

II. To find the stopping distance, we would use the third equation of motion;

[tex] V^{2} = U^{2} + 2aS [/tex]

Where;

V represents the final velocity measured in meter per seconds.

U represents the initial velocity measured in meter per seconds.

a represents acceleration measured in meters per seconds square.

Substituting into the equation, we have;

30² = 0² + 2*6*S

900 = 12S

S = 900/12

S = 75 meters

Given:

distance of observer from the sound source, [tex]s=70~m[/tex]

distance between the source of image information sender and the receiver, [tex]d=45~miles=72420.48~m[/tex]

Assumptions:

speed of sound, [tex]v=343~m/s[/tex]

speed of the image information being sent, [tex]c=3\times 10^8~m/s[/tex] (we assume it to be nearly the speed of light in vacuum)

Solution:

Time taken by the sound to reach the observer:

[tex]time=\frac{distance}{speed}[/tex]

[tex]time=70\div 343[/tex]

[tex]time \approx 0.2~s[/tex]

Time taken by the image to reach the destination:

[tex]time=\frac{72420.48}{3\times 10^8}[/tex]

[tex]time=2.4\times 10^{-4}~s[/tex]

Answer:

3) Act on different objects

Explanation:

Newton's third law of motion states that for every action there is an equal and opposite reaction.

Action-reaction force pairs make it possible for fishes to swim, birds to fly, cars to move, etc.

Basically, action-reaction force pairs are characterized by the following statements;

I. The forces are the same type such as magnetic force, contact force or gravitational force.

II. The forces are equal in magnitude but opposite in direction.

III. They act up on two different bodies.

Hence, the two forces that make up 3rd law of motion can act on different objects.

For example, while driving down the road, a bug strikes the windshield of a vehicle (Action) and makes a quite obvious mess in front of the face of the driver of the vehicle (Reaction) i.e the bug hit the vehicle and the vehicle hits the bug.

Answer:

Los 11 colores básicos (negro, azul, marrón, gris, verde, naranja, rosa, púrpura, rojo, blanco y amarillo) y los 28 adicionales (turquesa, verde oliva, verde menta, borgoña, lavanda, magenta, salmón, cian, beige, rosado, verde oscuro, verde oliva, lila, amarillo pálido, fucsia, mostaza, ocre, trullo, malva, púrpura

hope that helps bby<3

Answer:

10 millones

Explanation:

En primer lugar, los científicos han determinado que en el laboratorio podemos ver unos 1.000 niveles de luz oscura y unos 100 niveles de rojo-verde y amarillo-azul. Eso es alrededor de 10 millones de colores ahí mismo.

Answer:

Not sure but, I think C

Hopefully this helps

Answer:

W = 66 J

Explanation:

Given that,

The weight of the box, W = 44 N

It is placed on a shelf that is 1.5 m above the ground.

We need to find the work done in lifting the box.

We know that,

Work done, W = Fd

So,

W = 44 N × 1.5 m

= 66 J

So, the required work done is equal to 66 J.

Answer:

80 Ω.

Explanation:

In this circuit the resistances are in series.The equivalent resistance of a series circuit is equal to the sum of the resistances. Req= 60 + 20 = 80 Ω.

The equivalent resistance of the circuit is 80 Ω. Hence, option (D) is correct.

Resistance is characterized as a conductor's quality that opposes the flow of electric current. The ratio of the applied voltage to the electric current passing through it is another definition for it.

A series combination of resistors is one in which two or more are linked end to end consecutively. Any number of resistances connected in series will result in a total resistance equal to the sum of the individual resistances.

In this diagram, two resistors of resistance 60 Ω and 20 Ω are connected in series combination.

So,  the equivalent resistance of the circuit is =  60 Ω + 20 Ω  = 80 Ω.

Learn more about resistance here:

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Explanation:

I think number has the greater pressure because the molecules are seen tightly packed

Answer:

I think part A) is b because there's more matter(molecules) inside the second so it has more tension

and to part b) I think it would deflated because the air molecules decrease when the temperature does I think.

Answer:

A. 59.4

Explanation:

The refractive index of the glass, n₁ = 1.50

The angle of incidence of the light, θ₁ = 35°

The refractive index of air, n₂ = 1.0

Snell's law states that n₁·sin(θ₁) = n₂·sin(θ₂)

Where;

θ₂ = The angle of refraction of the light, which is the angle the light will have when it passes from the glass into the air

Therefore;

θ₂ = arcsin(n₁·sin(θ₁)/n₂)

Plugging in the values of n₁, n₂ and θ₁ gives;

θ₂ = arcsin(1.50 × sin(35°)/1.0) ≈ 59.357551° ≈ 59.4°

The angle the light will have when it passes from the glass into the air, θ₂ ≈ 59.4°.

Answer:

A. 59.4

Explanation:

got it right, trust

Explanation:

If the satellite is moving too quickly then the gravitational attraction between the Earth and the satellite is too weak to keep it in orbit. If this is the case, the satellite will move off into space. This occurs at speeds around or above 11,200 metres per second (m/s).

Answer:

H = 1/2 * g * t^2     since initial velocity is zero

v = g * t    where v is the final velocity

t = v / g

H = 1/2 g * v^2 / g^2 = 1/2 v^2 / g

v = (2 * H * g)^1.2

v = (2 * 500 * 9.8)^1/2 = 99 m/s

Check: t = v / g = 99 / 9.8 = 10.1 sec

H = 1/2 * 9.8 * 10.1^2 = 500 m

I believe it's true.

Answer:

Explanation:

In a velocity/time (aka acceleration) graph, the slope of a line indicates the value of the acceleration in m/s/s. Acceleration is the change in velocity over the change in time. From 0 - 2 seconds, there is no change in velocity, so the acceleration during this interval is 0 (which is the same as the slope of the line). From 2 - 4 seconds, the slope of the line is -2, so the acceleration during the time interval from 2 to 4 seconds is -2 (negative because David is slowing down but is still going the same direction: to the right).

Answer:

fertilization and it produces a Zygote

Explanation:

Potential energy is the energy occupied by an object or substance due to its position.

For example, a sled drops 20 meters in height on a hill shows that a decrease in height is taking place.

Hence, potential energy is involved there.

Kinetic energy is the energy acquired by an object due to its motion.

For example, a rider is going 20 m/s at the bottom of the hill shows that rider is in motion due to which it has kinetic energy.

Answer:

The sun is located in the Milky Way Galaxy.

Answer:

A completes the following equation

Answer:

WHat do you mean by that

Explanation:

I dont get what you re asking

Answer:

the answer is 4m/ s²

hope this helps love!! <3

Answer:

[tex]1) \: \: \: 4Al+ 3MnO _{2}→ 3Mn + 2Al _{2} O _{3} \\ 2) \: \: \:2Ga + 3H _{2}SO _{4} → Ga _{2} (SO _{4}) _{3} +3 H _{2} \\ 3) \: \: \: Mg + 2HCI→ MgCl _{2}+ H _{2}[/tex]

Coordinates of y-intercept : (0,3)

Slope = 2

Another coordinate = 2 steps of rise and 1 step of run = (1,5)

Verification

Slope = (3-5) / (0-1) = -2 / -1 = 2

Answer:

Energy is what makes change happen and can be transferred form one object to another. Energy can also be transformed from one form to another. Power is the rate at which energy is transferred. It is not energy but is often confused with energy.

Explanation:

Answer:

when u have energy u will have power n u can work as power is the capacity to do the work

Answer:

Explanation:

An object in free fall, NOT experiencing parabolic motion, has an equation of

[tex]h(t)=\frac{1}{2} gt^2+h_0[/tex] which says:

The height of an object with respect to time in seconds is equal to the pull of gravity times time-squared plus the height from which it was dropped. Normally we use -9.8 for gravity but you said to use 10, so be it.

For us, h(t) is 5 because we are looking for the height of the window when the object is 5 m off the ground at .5 seconds;

g = 10 m/s/s, and

t = .5sec

[tex]5=\frac{1}{2}(-10)(.5)^2[/tex]+h and

5 = -5(.5)² + h and

5 = -5(.25) + h and

5 = -1.25 + h so

h = 6.25

That's how high the window is above the ground.

Height above the window object was dropped is 6.25 m

Given:

Height of window = 5 m

Time taken to drop object = 0.5 sec

Gravitational acceleration = 10 m/s²

Find:

Height above the window object was dropped

Computation:

We know that;

[tex]H(T) = \frac{1}{2}(g)(t^2) + H(S)\\\\5 = \frac{1}{2}(10)(0.5^2) +H(S)\\\\5 = (5)(0.5^2)+H(S)\\\\H(S) = 6.25[/tex]

So,

Height above the window object was dropped = 6.25 m

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