A simple machine can change the direction of a force.
O True
O False

Answer:D

Explanation:

i’m not sure if that’s right but that’s what i think

Answer:

a = -1.2 m/s^2

Explanation:

Vi = 12 m/s

Vf = 0 m/s

t = 10 s

Plug those values into the following equation:

Vf = Vi + at

0 = 12 + 10a

---> a = -1.2 m/s^2

Answer:

description

Explanation:

Motion can be defined as a change in the location (position) of a physical object or body with respect to a reference point.

This ultimately implies that, motion would occur as a result of a change in location (position) of an object with respect to a reference point or frame of reference i.e where it was standing before the effect of an external force.

Mathematically, the motion of an object is described in terms of acceleration, time, distance, speed, velocity, displacement, position, etc.

A reference point refers to a location or physical object from which the motion (movement) of another physical object or body can be determined.

For example, a point on a map is considered to be a reference point because it represents the starting point of an object or person in motion.

If the reference point changes, the description of position changes, but the actual position does not change.

Answer:

description

Explanation:

Hope this helps

Answer:

c. 0.80

Explanation:

they will choose the path that has not resistance

Answer:

Even inside their ships, astronauts are exposed to a slow drizzle of cosmic rays coming right through the hull. The particles penetrate flesh, damaging tissue at the microscopic level. One possible side-effect is broken DNA, which can, over the course of time, cause cancer, cataracts and other maladies.

Answer:

Explanation:

Formula

KE = 1/2 m v^3

Givens

m  = 54 kg

v = 30 m/s

Solution

KE = 1/2 54 * 30^2

KE = 1/2 54 * 900

KE = 27 * 900

KE = 24300 Joules

Answer:

The answer would be Front Line

The base line, service line, and the side lines are the part of the tennis court however front line is not a part of the tennis court. Thus, the correct option is D.

A tennis court is a 78ft long court, with a service line of 21ft from the net. The courts for singles tennis matches are 27ft wide in dimension, while the doubles matches courts are 36ft wide. The total playing area in tennis for a singles court is 2,106ft² and 2,808ft² for a doubles court.

The basic and important parts of a tennis court in both singles and doubles are the baseline, the center mark, the sidelines, the service lines, and the service boxes. The baseline is the boundary line at the ends of the tennis court, and the sidelines are the lines which mark the boundary line between in-bounds and out-of-bounds for both singles and doubles play.

Therefore, the correct option is D.

Learn more about Tennis Court here:

https://brainly.com/question/11929841

#SPJ6

Answer:

20V

Explanation:

V = intensity * resistance

V = 2 * 10 = 20

Answer:

A south pole of one magnet can approach the north pole of another. The magnetic fields are aligned. This makes an attractive force between the two magnets. The farther apart they are, the higher their potential energy.

Answer:

a) ray horizontal and ray leaves his feet

b) The normal line respect to which the angles are measured,

c) The angle x is the reflected angle

d) virtual image,  right image

Explanation:

a) To complete the rays, you must draw a horizontal ray at the height of the man's head, this ray touches the mirror perpendicularly, therefore it bounces in the same direction.

The other ray leaves his feet and touches the mirror at one point, it is reflected with the same angle, by the law of reflection and reaches the eyes of man, the brain creates an extension of this ray and at the point of the floor creates the image point.

b) The normal line is a line perpendicular to the surface with respect to which the angles are measured,

c) The angle x is the reflected angle, which is equal to the incident angle according to the law of reflection

d) The image is formed by the prolongation of the rays of light, therefore it is a virtual image and as it has the same direction of the man it is a right image

Answer:

The full cycle of Moon phases takes on average 29 nine days and 12 hours for 8 phases when i name the “minimal moon” as a distinct phase (it vary a bit over and under that because Earths orbit is elliptical).

That gives us 2 half cycles of 4 phases each:

Minimal Moon. The moon show hardly any crescent and the bit of crescent it do show is nearly horizontal. Earth, Moon and Sun is near conjunction (on the same line, there may be a solar eclipse in mid phase).

New Moon (aka Waxing Crescent). The crescent grows and becomes more vertical.

Half moon (aka First Quarter) . The crescent is now halfway to full moon.

Waxing Gibbous. We see the moon as convex on both sides, and growing.

Full moon. We see the moon as circular ( again near a conjunction, there may be a lunar eclipse in mid phase)

Waning Gibbous. We see the Moon shrinking again.

Third quarter (the ‘other’ half moon, but now it is the other half of the Moon we can see).

Waning Crescent (shrinking crescent)

‘Waxing’ means growing and ‘Waning’ means shrinking. ‘Gibbous’ means fat, and now the cycle start over with:

Minimal Moon. again

Each phase takes 29.5/8 days. that is 3 days and 16.5 hours

So to answer your question: New Moon to Full Moon is 3 phases. 9 days + 49.5 hours = 11 days and 1.5 hours

The naming of the moon phases is based on human eyesight estimates. That is why I felt a need to introduce the ‘Minimal Moon’ phase to make it Mathematically consistent.

PLEASE MARK THE BRAINILEST, THANK YOU

Answer:

500N

Explanation:

f = ma

100kg x 5 m/s^2 = 500N

Answer:

Explanation:

For answer please see the image attached .

The mirror reflects the light while the lens allows the light to pass through it. The lens and mirror are positioned parallel and opposite each other.

The basic difference between the lens and mirror is that mirror reflects the light while the lens allows the light to pass through it. Both are optical instruments but their laws are different.

The lens and mirror are positioned parallel and opposite each other. From the above conditions, it is observed that first, the light gets passed through the lens.

After it passes through the light got reflected. As the light reflected the mirror it again passes through the lens and converts the distributed or parallel lights into a single beam of light.

The single beam of light is known as the spotlight.

Such types of design for a spotlight use a lens and a mirror, combined with a gas-discharge lamp, to project a powerful parallel beam of light.

Hence the lens and mirror are positioned parallel and opposite to each other.

To learn more about the lens and mirror refer to the link;

https://brainly.com/question/13300307

Answer:

D. 100 J

Explanation:

Given

Mass (m) = 2 kg

Height (h) = 5 m

Acceleration due to gravity (g) = 10 m/s²

Now

Work done(W)

= m * g * h

= 2 * 10 * 5

= 100 Joule

Hope it will help :)❤

The work done in uplifting a brick having a mass of 2kg along with a height of 5m above ground level would be:

D). 100 J

Given that,

Mass of the brick [tex]= 2Kg[/tex]

Height of the brick [tex]= 5m[/tex]

As we know,

Work Done (W) [tex]= mgh[/tex]

where

m = Mass

g = Acceleration due to gravity

h = height

A.T.Q.

By substituting the given values, we get;

[tex]Work Done (W)[/tex] [tex]= 2[/tex] × [tex]10[/tex] × [tex]5[/tex]            (taking [tex]g = 10 m/s^2[/tex])

[tex]= 100 J[/tex]

Thus, the work done is 100 J and hence, option D is the correct answer.

Learn more about 'Work Done' here:

brainly.com/question/13662169

Answer:

Velocity

Explanation:

Answer:

2 x 10^-8

Explanation:

the formula of wavelength is

the speed divided by frequency

so you have the speed given = 3.0x10^8m/s

and frequency = 1.5×10^16 Hz

so wavelength = 3.0x10^8m/s / 1.5x10^16 Hz

Answer:

d = 40 m

Explanation:

Given that,

Force, F = 4000 N

Mass of a car, m = 800 kg

Initial velocity, u = 0 (at rest)

Final velocity, v = 20 m/s

We need to find the distance traveled. Force acting on a car is given by :

F = ma

Where

a is the acceleration of the car.

[tex]a=\dfrac{F}{m}\\\\a=\dfrac{4000}{800}\\\\a=5\ m/s^2[/tex]

Let it has traveled d distance. Using third equation of motion.

[tex]v^2-u^2=2ad\\\\d=\dfrac{v^2-u^2}{2a}\\\\d=\dfrac{(20)^2-(0)^2}{2\times 5}\\\\d=40\ m[/tex]

So, the required distance is equal to 40 m.

Answer:

Answer. Pressure under water is given by the sum of atmospheric pressure and pressure of fluid. Thus, depth in water at which pressure will be equal to twice the atmospheric pressure is 10.2 m.

Explanation:

Answer:

410 nanometers

Violet light is electromagnetic radiation with wavelengths of 410 nanometers and red light has a wavelength of 680 nanometers. The nanometer is a unit of distance in the metric scale and is abbreviated as nm. One nanometer (nm) equals one thousand millionths of a meter (m) or 1 nm = 10-9 m.

Explanation:

Hope it helps! Correct me if I am wrong :>

Answer:

Using my searching skills, I have came to the conclusion that the most energetic violet light wavelength is 380nm.

Answer:

Electrostatics is a branch of physics that studies electric charges at rest. Since classical physics, it has been known that some materials, such as amber, attract lightweight particles after rubbing. The Greek word for amber, or electron, was thus the source of the word 'electricity'.

Answer:

student's tie cause if the tie is too tight then no need of hanging to fan.

An example of an object in a classroom that has a loose end could be a frayed electrical cord on a piece of electronic equipment such as a computer or a lamp.

A classroom is an educational circumstance in an academic institution where important personalities are developed and career-building skills are learned.

A frayed electrical cord on a piece of electronic equipment, such as a computer or a lamp, is an example of a loose end in a classroom.

Over time, the cord can become worn or damaged and the outer protective layer can start to come apart, leaving exposed wires and a "loose end" that can be potentially dangerous if not addressed.

This loose end can become a safety hazard as it increases the risk of electrical shock or fire. It is important to address any loose or frayed cords as soon as they are noticed and either repair or replace the equipment to ensure a safe learning environment for students and teachers alike.

Learn more about the classroom here:

https://brainly.com/question/3479029

#SPJ2

that means the parameter over another

Explanation:

that is when you say a parameter is inversely proportional to another it means what ever happens to the first parameter the opposite happens to the other parameter

Answer:

8.5 kg

Explanation:

F = ma

34 N = m(4.0m/s^2)

m = 8.5 kg

☁️ Answer ☁️

annyeonghaseyo!

Your answer is:

Force.

Explanation: Force is defined as a push or pull acting on an object. Forces include gravity, friction, and applied force. Force causes changes in the speed or direction of motion.

Here's another one: Force is everywhere and it comes in a variety of sizes, directions, and type. We can define Force as the push or pull of an object.

Hope it helps

Have a nice day noona/hyung!~ ￣▽￣❤️

Answer:

Reunirán $270.

Explanation:

Para pagar la entrada al circo y comprar palomitas Daniela y María van a cooperar con $65.50 cada una. Entonces para calcular el dinero que van a reunir entre ambas debes sumar lo que aporta cada una:

$65.50 + $65.50= $131

Por otro lado, Francisco y Javier van a cooperar con $69.50 cada uno. De igual manera, para calcular el dinero que van a reunir entre ambos debes sumar lo que aporta cada uno:

$69.50 + $69.50= $139

Para conocer el dinero total recaudado, debes sumar lo que aportan tanto ellas como ellos. Esto es:

$131 + $139= $270

Reunirán $270.