If the distance of a force arm (FA) is 4 feet and the resistance arm (RA) is 2 feet, then the mechanical advantage would be

the object is real inverted and diminishes

Answer:

400Pa

Explanation:

use pressure = force/area

[tex]\\ \rm\longmapsto Pressure=\dfrac{Force}{Area}[/tex]

[tex]\\ \rm\longmapsto Force=Pressure(Area)[/tex]

[tex]\\ \rm\longmapsto Force=200(0.5)[/tex]

[tex]\\ \rm\longmapsto Force=100N[/tex]

Answer:

3. blue sky

Explanation:

I answered blue sky on my quiz and got it correct.

Answer:

Blue Sky

Explanation:

I also took the test :)

the movement of an object in a straight line. When an object is thrown up, it always comes down, this is due to gravity

D. 18.1

K^+H^+G^=180° (sum of int angles of triangle)

K^+30+62=180

K^=88°

GH/sinK=KG/sinH

X/sin88=16/sin62

X*sin62/sin62=16*sin88/sin62

X=18.1

Answer:

5.672/s^2 is his acceleration

Explanation:

1 minute is equal to 60 seconds. Take that and divide 340.3 by that.

Answer:

37.5

Explanation:

divide

Answer:

magnitude = 13.02 m/s

direction = 86.9 degrees relative to ground.

Explanation:

We need to compose the velocities in perpendicular directions using the Pythagoras theorem to find the magnitude of the composition:

magnitude of new velocity: [tex]\sqrt{13^2+0.7^2} \approx 13.02\,\,m/s[/tex]

The direction will be given by the angle relative to ground using the arctan function:

[tex]\theta=arctan(\frac{13}{0.7}) =86.9^o[/tex]

Answer:

According to the Pythagorean theorem, the magnitude of the balloon’s velocity relative to the ground is = 13.02 ≈13.0 meters/seconds. The direction of the balloon relative to the ground is 3° northeast.

Explanation:

Plato/Edmentum

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 4697 × 2

We have the final answer as

Hope this helps you

Answer:

The correct option is thermogram

Explanation:

A thermogram is an image that is produced by thermographic cameras that are usually used to detect radiation (thermal energy released by a body) within a long-infrared range of electromagnetic spectrum. This process is a part of infrared imaging science which is useful in the diagnosis of breast cancer and some other forms of tumors.

Answer:

thermogram

Explanation:

i took the test

Answer:

The resultant velocity of the helicopter is [tex]\vec v_{H} = \left(89.894\,\frac{m}{s}, -93.348\,\frac{m}{s}\right)[/tex].

Explanation:

Physically speaking, the resulting velocity of the helicopter ([tex]\vec v_{H}[/tex]), measured in meters per second, is equal to the absolute velocity of the wind ([tex]\vec v_{W}[/tex]), measured in meters per second, plus the velocity of the helicopter relative to wind ([tex]\vec v_{H/W}[/tex]), also call velocity at still air, measured in meters per second. That is:

[tex]\vec v_{H} = \vec v_{W}+\vec v_{H/W}[/tex] (1)

In addition, vectors in rectangular form are defined by the following expression:

[tex]\vec v = \|\vec v\| \cdot (\cos \alpha, \sin \alpha)[/tex] (2)

Where:

[tex]\|\vec v\|[/tex] - Magnitude, measured in meters per second.

[tex]\alpha[/tex] - Direction angle, measured in sexagesimal degrees.

Then, (1) is expanded by applying (2):

[tex]\vec v_{H} = \|\vec v_{W}\| \cdot (\cos \alpha_{W},\sin \alpha_{W}) +\|\vec v_{H/W}\| \cdot (\cos \alpha_{H/W},\sin \alpha_{H/W})[/tex] (3)

[tex]\vec v_{H} = \left(\|\vec v_{W}\|\cdot \cos \alpha_{W}+\|\vec v_{H/W}\|\cdot \cos \alpha_{H/W}, \|\vec v_{W}\|\cdot \sin \alpha_{W}+\|\vec v_{H/W}\|\cdot \sin \alpha_{H/W} \right)[/tex]

If we know that [tex]\|\vec v_{W}\| = 25\,\frac{m}{s}[/tex], [tex]\|\vec v_{H/W}\| = 125\,\frac{m}{s}[/tex], [tex]\alpha_{W} = 240^{\circ}[/tex] and [tex]\alpha_{H/W} = 325^{\circ}[/tex], then the resulting velocity of the helicopter is:

[tex]\vec v_{H} = \left(\left(25\,\frac{m}{s} \right)\cdot \cos 240^{\circ}+\left(125\,\frac{m}{s} \right)\cdot \cos 325^{\circ}, \left(25\,\frac{m}{s} \right)\cdot \sin 240^{\circ}+\left(125\,\frac{m}{s} \right)\cdot \sin 325^{\circ}\right)[/tex][tex]\vec v_{H} = \left(89.894\,\frac{m}{s}, -93.348\,\frac{m}{s}\right)[/tex]

The resultant velocity of the helicopter is [tex]\vec v_{H} = \left(89.894\,\frac{m}{s}, -93.348\,\frac{m}{s}\right)[/tex].

Answer:

their ability to conduct electricity

Answer:

The Force between the two charges is an attractive force of 16,000N

Explanation:

Expression for the electric force between the two charges is given by

F = (k*q1*q2) / r^2

Here, k = constant = 9 x 10^9 N*m^2 / C^2

q1 = - 2.0x10^-4C

q2 = + 8.0x10^-4C

r = 0.30 m

Substitute the given values in the above expression -

One charge  is + and the other is a -, therefore the net force is an attractive force (opposites atract)

The attraction force is:

F= 9.0x10^9 * 2.0x10^-4 *8.0x10^-4 N/ 0.30^2

F= 16,000N

The force between the two charges will be 16,000 N.It is the force exerted by one charge on another charge.

The electric force between the two charges is directly propotional to the product of the charge and inversly propotional to the square of the distance between them.

The given data in the problem is;

q₁ is the megnitude of charge 1= - 2.0x10⁻⁴ C

q₂ is the megnitude of charge 2 = + 8.0x10⁻⁴ C

k is the propotionallity constant = 9 x 10⁹ Nm² / C²

r is the seperated distance = 0.30 m

F is the electric force=?

The electric force is found as;

[tex]\rm F = \frac{K q_14q_2}{r^2} \\\\ \rm F = \frac{9 \times 10^9 \times 2.0 \times 10^{-4}}{(0.30)^2} \\\\ \rm F = 16,000N[/tex]

Hence the force between the two charges will be 16,000 N.

To learn more about the electric force refer to the link;

https://brainly.com/question/1076352

Answer:

The velocity after 2.5 seconds is 11.3 m/s

Explanation:

Given;

u = 35.8 m/s

t = 2.50s

g = 9.8 m/s^2

Mathematically;

V = U-gt

Substituting these values;

V = 35.8-2.5(9.8)

V = 35.8-24.5

V = 11.3 m/s

Explanation:

According to the Second Law of Thermodynamics, heat will always flow spontaneously from hot to cold, and never the other way around. A refrigerator causes heat to flow from cold to hot by inputting work, which cools the space inside the refrigerator. thermal energy is transferred from the cool air inside the refrigerator to the warmer air in the kitchen. ... As a liquid, the refrigerant absorbs thermal energy from the cool air inside the refrigerator and changes to a gas.

Answer:

C. It transforms electrical energy into mechanical energy

Answer: C

Explanation:

Answer:

Sonography- using sound waves to image internal structures

Brachytherapy-  Therapy where radiatio is placed inside or next to the diseased area

lithiotripsy- The physical breakage of stones by the application of pulsed ulrasound

radiopharmaceuticals-   internally delivered and targeted ionizing radiation

Explanation:

Answer:

Here are the answers :D

Explanation:

I just did it right now on Edg22 and I got it correct :D

Answer:

83.3m

Explanation:

From the question we are given the following:

initial speed u = 50m/s

acceleration a = -15m/s²

final speed = 0m/s

Required

Stopping distance S

Using the equation of motion:

0² = 50²+2(-15)S

0² = 2500 - 30S

-2500 = -30S

S = 2500/30

S = 83.3m

Hence the stopping distance of the dragster if only the drag chute is used  bring it to rest is 83.3m

Answer:Galaxies

Explanation:

I know about this stuff, I hope it helped!

Answer:

B-galaxies

Explanation:

e2020

Explanation:

vgfbhhhhhjhbgvbhggy

Answer:

Total displacement

The displacement of the car is 10 kilometers due East and 5 kilometers due North.

The magnitude of the displacement of the car is approximately 11.180 kilometers.

Total distance

The total distance of the car is 15 kilometers.

Explanation:

According to the statement the car shows the following path, whose displacement is represented by the following formula: (All distances are measured in kilometers)

[tex]\vec r = \vec r_{1} + \vec r_{2}+\vec r_{3}[/tex] (1)

Where:

[tex]\vec r_{1}[/tex] - First displacement to the east.

[tex]\vec r_{2}[/tex] - Displacement to the north.

[tex]\vec r_{3}[/tex] - Second displacement to the east.

If we know that [tex]\vec r_{1} = (5,0)[/tex], [tex]r_{2} = (0,5)[/tex] and [tex]r_{3} = (5,0)[/tex], then the displacement of the car is:

[tex]\vec r = (10, 5)[/tex]

The displacement of the car is 10 kilometers due East and 5 kilometers due North.

The magnitude of the displacement represents the distance of the car from point of departure in a straight line and is determined by the Pythagorean Theorem:

[tex]\|\vec r\| = \sqrt{10^{2}+5^{2}}[/tex]

[tex]\|\vec r\| \approx 11.180\,km[/tex]

The magnitude of the displacement of the car is approximately 11.180 kilometers.

The distance travelled of the car is the sum of magnitudes of the displacement of the car, each of them are calculated by Pyhtagorean Theorem:

[tex]d = \|\vec r_{1}\| + \|\vec r_{2}\| + \|\vec r_{3}\|[/tex] (2)

[tex]d = 5\,km + 5\,km + 5\,km[/tex]

[tex]d = 15\,km[/tex]

The total distance of the car is 15 kilometers.

Answer:

17 A

Explanation:

hope it helps you

17 a is correct

There must be 17A flowing out of the other two wires

Electric current is a stream of moving electrons.

The number of electrons that leave a point has to be the same as the number of electrons that arrive there.

. If they arrive and don't leave, then there has to be a way to store them there, like a capacitor or a battery.

And if they're leaving but not arriving, then there has to be a tiny factory there, manufacturing electrons and shipping them out.

The whole idea is called "Conservation of electric charge". The idea is that charge can't be created or destroyed. If charge appears, it had to come from somewhere. And if you have some that you don't want, you have to send it somewhere, because it never just disappears.

There's actually a law in electronics that covers this nicely, called Kirchhoff's current law. It says that the sum of all currents entering a single point is zero. (current coming in is positive, current going out is negative). In other words, All current In and all current Out are equal.

Answer:

The analysis for the particular situation is described elsewhere here.

Explanation:

Answer:

E)brain decay

Explanation:

Looking at the question causes it.

Answer: D

Explanation: because

Answer:

The closer a planet is to the Sun, the stronger the Sun's gravitational pull on it, and the faster the planet moves. The farther it is from the Sun, the weaker the Sun's gravitational pull, and the slower it moves in its orbit.

Answer:4 and 5

Explanation:it you add 1+3 and 2+3 it is 4 and 5

Answer:

Work

Explanation:

The use of force to move an object is the definition of "work" in physics.

Answer:

the answer should be wave

Answer:

Sabemos que:

La masa del trozo de hielo es 500g

la velocidad inicial es 20 m/s

el coeficiente de fricción es 0.04

a) La fuerza de rozamiento de un objeto de masa M es escrita como:

F = M*g*μ

Y es en dirección opuesta al movimiento del objeto, entonces la rescribimos como:

F = -M*g*μ

Donde M es la masa del objeto, 500g, es útil escribirla en kilogramos, entonces podemos escribir M = 500g = 0.5 kg

g es la aceleración de la gravedad:

g = 9.8m/s^2

y μ es el coeficiente de fricción, en este caso es 0.04

Entonces la fuerza de fricción es:

F = -0.5kg*9.8m/s^2*0.04 = -0.196 N

b) Ahora queremos la aceleración, tenemos la segunda ley de Newton que dice:

F = M*a

-0.196 N = 0.5kg*a

(-0.196 N)/0.5kg = a = -0.392 m/s^2

c) Primero debemos escribir la ecuación de movimiento.

La aceleración es:

a = -0.392 m/s^2

Para obtener la velocidad, debemos integrar sobre el tiempo para obtener.

v(t) = (-0.392 m/s^2)*t + v0

Donde v0 es la velocidad inicial, en este caso 20m/s

Entonces la ecuación es:

v(t) = (-0.392 m/s^2)*t + 20m/s

Recordemos que esta fuerza solo actua mientras el objeto se mueva, esto significa que cuando la velocidad sea igual a cero, la fuerza desaparece, por lo tanto el objeto se detiene.

Entonces podemos obtener el valor de t para el cual la velocidad es igual a cero.

v(t) = 0 = (-0.392 m/s^2)*t + 20m/s

(0.392 m/s^2)*t  = 20m/s

t = 20m/s/(0.392 m/s^2) = 51.02 s

Esto significa que el objeto se va a mover por 51.02 segundos antes de detenerse totalmente.

Ahora, la ecuación de la posición puede obtenerse si integramos la ecuación de la velocidad, así obtenemos:

p(t) =  (1/2)*(-0.392 m/s^2)*t^2 + 20m/s*t + p0

donde p0 es la posición inicial del objeto.

Ahora, el espacio total recorrido por el trozo de hielo va a ser igual a la diferencia entre la posición final y la posición inicial, esto es:

D = p(51.02s) - p(0s)

D = ((1/2)*(-0.392 m/s^2)*(51.02s)^2 + 20m/s*51.02s + p0) - ((1/2)*(-0.392 m/s^2)*(0s)^2 + 20m/s*(0s) + p0)

D = (1/2)*(-0.392 m/s^2)*(51.02s)^2 + 20m/s*51.02s = 510.20 m

El trozo de hielo se mueve por 510.20 metros.