helpp pls .. Which statement is true about the process shown?

Answer:

trump

Explanation:

yee hawww

Answer:I think a closed system

Explanation:

Answer:

105

Explanation:

Explanation:

The frequency of the engine is given by :

[tex]f=\dfrac{rpm}{60}[/tex]

We have, the engine increases its performance from zero to 2700 rpms.

Frequency,

[tex]f=\dfrac{2700}{60}\ \text{cycles per second}\\\\f=45\ \text{cycles per second}[/tex]

The time period of the engine is given by :

T = f/f

So,

[tex]T=\dfrac{1}{45}\ s\\\\T=0.023\ s[/tex]

Hence, the required frequency and the period is 45 cycles/second and 0.023 seconds respectively.

Answer:

B . x= v*cos ∅* 6.2

Explanation:

Time of flight of a projectile motion is the time taken by the object to reach the surface from when it was projected.

In this case ;

Initial launch velocity = v

Angle of launch is =∅

Time of flight = 6.2 seconds

The formula for time of flight is;

T= 2*v*sin∅  / g

At time t the displacement components for x and y are;

x= v* t * cos ∅  ----------------i

and

y =u* t * sin ∅ - 1/2 g*t² ------------ii

Taking equation i for displacement of the object in the x component

x = v* t* cos ∅

x = v * cos ∅ * 6.2

x = 6.2* v * cos ∅

Answer:

B and D

Explanation:

If it has letters.

Answer:

the answer is 10n to the left. option B

Explanation:

when two sides are parallel to each other you subtract

for example

f1+f2=R2

30n-20n=10n

Answer:

centripetal force.

Explanation:

Answer:

centripetal force - force directed toward the center of a circle,

    causes an object to move in a circle.

Explanation:

Have a gooood day!

Answer:

a. Potential energy decreases and Kinetic energy increases

Explanation:

Because as he comes down due to its steepness the speed of the boy or you can say his KE increases and since he comes from a high position (hill) to the lower ground his potential energy decreases simultaneously

Answer:

Potential energy decreases and kinetic energy increases.

Explanation:

That was the answer on my CK12

Answer:

False

Explanation: The cannonball that is faster has more force and energy therefore go longer and the cannonball with less speed will fall sooner with the lack of force and energy to carry it.

Answer:

d. Two soccer balls that are touching each other

Explanation:

Let [tex]m_1[/tex] be the mass of a tennis ball, [tex]m_2[/tex] is the mass of a soccer ball.

As the mass of a soccer ball is more than the mass of a tennis ball, so

[tex]m_2 > m_1[/tex]

Let [tex]d_1[/tex] be the distance between the centers of both the balls near each other and [tex]d_2[/tex] be the distance between the centers of both the balls touching each other.

So, [tex]d_2 > d_1[/tex]

The gravitational force, F, between the two objects having masses M and m and separated by distance d is

[tex]F=\frac{GMm}{d^2}[/tex]

Where G is the universal gravitational constant.

As, the gravitational force is directly proportional to the product of both the masses and inversely proportional to the square of the distance between them,  so selecting the larger mass ([tex]m_2[/tex], soccer ball) separated by a lesser distance ([tex]d_2[/tex], touching) to get more gravitational force.

Therefore, there will be a larger gravitational force between them when two soccer balls touching each other.

Hence, option (d) is correct.

Answer:

Two soccer balls that are touching each other

Explanation:

I got it right on the test.

Answer:

15 - 17 is -2

Explanation:

Answer:

C) close together and vibrating in place cross out

Explanation:

Solid, liquid and gas are the three types of matter. In solid, the molecules are tightly packed together. The intermolecular forces is very strong and the particles do not move from one place to another. The particles are so closely packed that they move at their own place and vibrate forth and back. The motion of the movement of the particle and its force are the two factors that help in determining the state of matter.

Answer:

a large beach ball

Explanation:

Answer:

Blue

Explanation:

The colors of the rainbow are known by the acronym; ROYGBIV.

This is;

Red, Orange, Yellow, Green, Blue, Indigo, and Violet.

From research, their respective wavelengths on the average are;

Red: 665 nm

Orange; 630 nm

Yellow; 600 nm

Green; 550 nm

Blue; 470 nm

Indigo; from 445nm to 464 nm

Violet; less than 400 nm

This means that from Red to Violet in that order, wavelength is decreasing in a descending order.

Now in refraction, the light with shortest wavelength will be bent the most while that with longest wavelength will be bent the least.

Thus, violet bends the most.

However, violet is not included in the options. So the next one that will bend the most after violet among the options given is Blue.

Answer:

9.5km

Explanation:

To solve this problem, we add the distances given together.

The distance is the sum of the length of path covered. It is a scalar quantity and has only magnitude but no directional attribute.

Distance walked to friend's house  = 500m

Distance to mall  = 5km

              Since 1000m = 1km, 5km will be 5000m

Distance back to house  = 4km

                In m, this gives 4000m

So;

 Total distance covered  = 500m + 5000m + 4000m  = 9500m

Since 1000m = 1km;

        Then, 9500m will given 9.5km

Answer: true

Explanation:

Answer:

the orbit of the a planet has an elliptical shape with the sun at the focus

Explanation:

The solar system is described to be elliptical including the central body sun and the planets are revolving around. The central body is located at one focus of the ellipse describing the orbit.

Solar system contains sun and eight planets revolving around sun. Planets like earth, mars, mercury etc. are revolving around sun in their own orbits. Every planet's orbit around the Sun is an ellipse, according to Kepler's First Law.

The orbital ellipse's central focus is always where the sun is. The sun is centered. The planet's orbit is an ellipse, thus as it revolves around its axis, the distance from the sun changes continuously.

Two focal points, or foci, make up an ellipse. The overall distance of a planet from these 2 focus points is constant during its orbit. Additionally, an ellipse has two symmetry lines.

The primary axis is the longest line. The minor axis is the shorter line. Sun is located at one end of the orbit. Thus, option D is correct.

To find more on elliptical orbits, refer here:

https://brainly.com/question/18283031

#SPJ5

Answer:

A boat being accelerated by the force of the engine. The boat pushes through the water as chemical energy is transferred into kinetic energy.

Bringing water to the boil in an electric kettle.

Answer:

i believe it is .44 hr o26.6!

Explanation:

Answer:

The crate should be released 3,080 m in front of the target

Explanation:

Horizontal Launch

When an object is thrown horizontally with a speed v from a height of h, it describes a curved path ruled by gravity until it hits the ground.

The range or maximum horizontal distance traveled by the object can be calculated as follows:

[tex]\displaystyle d=v\cdot\sqrt{\frac {2h}{g}}[/tex]

The airplane drops a crate horizontally from a height of h= 2,750 m when flying at v=130 m/s. The range or maximum horizontal distance the crate reaches is:

[tex]\displaystyle d=130\cdot\sqrt{\frac {2*2,750}{9.8}}[/tex]

Operating:

[tex]\displaystyle d=130\cdot\sqrt{561.2245}[/tex]

d = 3,080 m

The crate should be released 3,080 m in front of the target

Answer:

Effi = 75 %

Explanation:

That is, the 6000 [J] is electrical energy that is transferred to the liquid, of that amount of energy 1500 [J] is dissipated or lost.

That is, from that amount of energy the difference between the energy that is supplied and the one that is lost is the energy that absorbs the liquid in the kettle.

[tex]Q=6000-1500\\Q=4500[J][/tex]

That is 4500 [J] enter the liquid that is heated.

Efficiency can be calculated as the amount of energy that the liquid receives over the energy that is supplied.

[tex]Effi = 4500/6000\\Effi = 0.75[/tex]

3.00 x 0.68= 2.04

To find magnification, you multiply your object by the factor

Answer:

I believe it's A

Explanation:

Answer:

1. 431.2newtons

2. 1.47meters per second squared

Explanation:

f=ma

force of friction=normal force×coefficient of friction

normal force = mass× gravity

1.

nf=110kg × 9.8m/s^2 = 1078newtons

f=nf×cf

f=1078×.4=431.2

1

f=1078×.25=269.5

431.2-269.5=161.7

161.7=110kg× a

a=1.47

Answer:

393.6m/s

Explanation:

Given parameters:

Acceleration  = 8.5m/s²

Distance  = 300m

Final velocity  = 400m/s

Unknown:

Initial velocity  = ?

Solution:

To solve this problem, we use the expression below;

             v² = u²  + 2as

v is the final velocity

u is the initial velocity

a is the acceleration

s is the distance

      So;

               v²  - 2as = u²

        u²   = v²   - 2as

        u²  = 400²   - (2 x 8.5 x 300)  

         u   = 393.6m/s

Given parameters:

Acceleration = 0.0m/w

Initial velocity = 0m/s

Final velocity  = 00m/s

Unknown:

Distance traveled  = ?

Solution:

To solve this problem, we use the expression below:

     q0   = y   + 0w

W is the final velocity

Y is the initial velocity

C is the acceleration

P is the distance

           0²  = 0²   +  (0 x 0.0 x S)

           000  = 00.0S

             S = 0m

Answer:

In New York City, weather observations have been taken in Central Park dating back to 1868. In the 150 years of records the city’s temperature extremes span 121 degrees ranging from a high of 106 on July 9, 1936 to a low of minus 15 on February 9, 1934. In Los Angeles temperatures have been taken at a downtown location since 1877 and extremes there range from a high of 113 on September 27, 2010 to a low of 28 degrees recorded on three occasions, most recently January 4, 1949, an 85-degreee range.

Explanation:

'm pretty sure that's the answer to your question.

Answer:660

Explanation:

Answer:

the picture is the definition