PLS HELP ME AS QUICK AS POSSIBLE,
THANKS :)) I'm a bit confused
Can you answer 1 and 2, then confirm 3 :))))​

The acceleration at t = 2.00 s for the given position function is -12.00 m/s² j.

To find the acceleration, we need to take the second derivative of the position function r(t) with respect to time. The given function is r(t) = 3.00 m i - 6.00 t² m/s² j.

The first derivative with respect to time gives the velocity, and the second derivative gives the acceleration.
The i component of r(t) is a constant, so its derivatives are 0.

The j component is -6.00 t², so its first derivative with respect to time is -12.00 t m/s and its second derivative is -12.00 m/s².

Summary: The acceleration at t = 2.00 s for the given position function is -12.00 m/s² j.

Learn more about acceleration click here:

https://brainly.com/question/460763

#SPJ11

To create the perpendicular bisector to a segment, we can use the following process:

Draw the given segment AB on a sheet of paper.

Take any point on the segment AB and label it as point C. This will be the midpoint of AB, as we need to create the perpendicular bisector of segment AB.

With the help of a compass, draw an arc on either side of the segment AB, making sure that the radius of the arc is greater than half of the length of segment AB. These arcs will intersect at two points, which will be equidistant from A and B, since they have the same radius.

Name the intersection points of the arcs as D and E. These points will be on the perpendicular bisector of segment AB.

Join points D and E with point C. This line will be the perpendicular bisector of segment AB, which will divide it into two equal halves.

Therefore, we have created the perpendicular bisector of segment AB.Here's the main answer to the question asked:To create the perpendicular bisector to a segment, we first need to identify the midpoint of the segment. Once we have the midpoint, we draw two arcs with the same radius on either side of the segment. The radius of the arcs should be greater than half of the length of the segment. The arcs will intersect at two points, which will be equidistant from A and B.

These points will be on the perpendicular bisector of segment AB. We join the intersection points with the midpoint of the segment, which will be the perpendicular bisector of the segment, dividing it into two equal halves. The main idea is to use the fact that the perpendicular bisector of a segment will pass through the midpoint of the segment and will be perpendicular to the segment.

In conclusion, this is the process that can be used to create the perpendicular bisector of any given segment. This process should be followed carefully to ensure accurate results.

To know more about perpendicular bisector visit:

brainly.com/question/25742812

#SPJ11

Answer:

Its b because the meteor moving strait.

Explanation:

Answer:

Hello! :)

Explanation:

A base quantity (or basic quantity) is chosen and arbitrarily defined, rather than being derived from a combination of other physical quantities. The 7 base quantities are: SI units are used as standardised units in all measurements in the world. SI is the short form for “International System of Units”

Hope This Helps!!!

false

can u make me brainleist

Recall, Newton's gravitational law states that any particle of matter in the universe attracts any other particle with a force varying directly as the product of their masses and inversely as the square of the distance between them. It is expressed as

F = Gm1m2/r^2

where

F is the force in Newton

G is gravitational constant = 6.673 x 10^-11 Nm^2/kg^2

m1 and m2 are the masses in kg

r is the distance in meters

From the information given,

r = 1.5

acceleration = 2cm^2/s

Recall, 100 cm = 1m

2 cm = 2/100 = 0.02m

Thus,

acceleration = 0.02m/s^2

Since the masses are identical, then m1 = m2

Each of them is accelerating at 0.02m/s^2

Recall,

Force = mass x acceleration

Force = m1 x 0.02 = 0.02m1 N

By substituting the given values into the formula, we have

0.02m1 = (6.673 x 10^-11 x m1 x m1)/1.5^2

m1 on the left cancels out one m1 on the right. It becomes

0.02 = (6.673 x 10^-11 x m1)/1.5^2

By crossmultiplying,

0.02 x 1.5^2 = 6.673 x 10^-11 x m1

0.045 = 6.673 x 10^-11 x m1

m1 = 0.045/6.673 x 10^-11

m1 = 6.74 x 10^8 kg

The mass of each ball is 6.74 x 10^8 kg

Fusion reactions are reactions that occur when two or more atomic nuclei come close enough to form one or more different atomic nuclei and subatomic particles like protons and neutrons.

These reactions are important for a variety of reasons, including the energy they provide in the form of sunlight, the helium that forms during these reactions which is used in balloons, and the potential for fusion to provide a sustainable source of energy.

In stars, fusion reactions could not occur without the pressure created by the inward force of gravity. Fusion requires high temperatures and pressures to overcome the electromagnetic repulsion between positively charged atomic nuclei. In the core of a star, the high temperature and pressure created by gravity causes hydrogen nuclei (protons) to come together and form helium through a series of nuclear reactions known as the proton-proton chain.

This process releases a tremendous amount of energy in the form of light and heat, which provides the energy that stars need to shine and support life on planets like Earth.

Fusion reactions are incredibly important to our understanding of the universe and our ability to harness energy from sources that do not contribute to climate change.

While scientists have made great strides in developing fusion reactors that can produce energy on Earth, there is still much work to be done before we can fully realize the potential of this technology.

To know more about atomic visit:

https://brainly.com/question/1566330

#SPJ11

The time period and frequency associated with this motion can be calculated using the formula T=2π/ω and f=1/T, where T is the time period, ω is the angular velocity, and f is the frequency.

In this case, the angular velocity is given as w = */2 rad/s.

Therefore, substituting the value of ω in the formula for T and f, we get T = 4π/* seconds and f = */4 Hz.
The time period represents the time taken by the object to complete one full rotation around its axis, whereas the frequency represents the number of rotations per unit time.

In this case, the time period is inversely proportional to the angular velocity, which means that if the angular velocity increases, the time period decreases, and vice versa. The frequency is directly proportional to the angular velocity, which means that if the angular velocity increases, the frequency also increases, and vice versa.
The time period and frequency associated with the given motion can be calculated using the formula T=2π/ω and f=1/T, where T is the time period, ω is the angular velocity, and f is the frequency. For the given angular velocity of w = */2 rad/s, the time period is T = 4π/* seconds and the frequency is f = */4 Hz.

For more information on angular velocity kindly visit to

https://brainly.com/question/31578075

#SPJ11

The work done on the Puck by the applied force from the most positive to the most negative is c, b, a respectively.

According to Newton's second law of motion, the force applied to an object is directly proportional to the product of mass and acceleration of the object.

F = ma

\(F= \frac{mv}{t}\)

The force applied to an object increases with increases in the velocity of the object.

In the given diagram, the resultant velocity of the puck is calculated as follows;

Figure a:

\(\Delta v = v_f -v_i\\\\\Delta v = 5 - 6 = - 1 \ m/s\)

Figure b:

\(v = \sqrt{4^2 + 3^2} \\\\v = 5 \ m/s\)

Figure c:

\(\Delta v = 4 - (-2)\\\\\Delta v = 6 \ m/s\)

Thus, the work done on the Puck by the applied force from the most positive to the most negative is c, b, a respectively.

Learn more here:https://brainly.com/question/19498865

Answer:

C is corret answer okay

These are called the north and south poles. When they are put together, due to the amount of opposing electrons and moles in the force, one repels the other while the other is magnetically attracted by the force because of the strength.

Answer:

They can use it to help them get a job, for example, tech typically have apps to help aid the citizen.

They can use their technology to try and make their life style easier for example, Google Home.

Answer:

I believe it is D.

Explanation:

I say this because it is position vs. seconds and it makes the most sense based on the markings. Sorry if I am wrong, hope it is right!  

Answer: D. 40/15 = 2.67m/s

Explanation:

I hope it is correct

Within the boundaries of the constellations Coma and Virgo, numerous galaxies can be found. In fact, the Virgo Cluster of galaxies is one of the most prominent galaxy clusters in the nearby universe and contains over 2,000 galaxies.

The Coma Cluster of galaxies is located in the constellation Coma Berenices and is another rich cluster of galaxies that is also studied by astronomers. It contains more than 1,000 galaxies and is one of the most massive structures in the universe.

In addition to these large clusters of galaxies, there are also many individual galaxies within the boundaries of Coma and Virgo. For example, the Sombrero Galaxy (M104) is a prominent galaxy in the constellation Virgo, while the Coma Galaxy Cluster contains many individual galaxies, including NGC 4889, which is one of the largest galaxies known.

Additionally, the Coma Cluster is another notable cluster of galaxies located in this region of the sky. Both of these clusters are important objects of study for astronomers as they offer insights into the formation and evolution of galaxies and galaxy clusters.

To learn more about Constellations, visit:

https://brainly.com/question/13048348

#SPJ11

Answer:

This process is CONDENSATION

Explanation:

Condensation occurs when water vapour loses some of its kinetic energy to a colder body and changes into liquid state.

Answer:

m = 5 [mg]

Explanation:

We must remember that the definition of linear momemtum is defined as the product of mass by distance.

P = m*v

P = momentum = 40 [mg*m/s]

m = mass [mg]

v = velocity = 8 [m/s]

Now clearing m:

m = P/v

m = 40/8

m = 5 [mg]

Answer: 90 Km

Explanation:

15 Km/hr X 6/hr = 90Km

Answer:

Explanation:

Just use the acceleration equation here:

\(a=-\frac{v}{t}\) where a = -9.8; velocity is also negative because it's falling down and down is negative. Filling in:

\(-9.8=-\frac{v}{8}\) so

-9.8(8) = -v and

v = 78.4 m/s downward (the word "downward" takes place of the negative sign)

The mobilization force applied parallel to the treatment plane in the concave joint surface is called "gliding mobilization."

Gliding mobilization, also known as gliding joint mobilization, is a technique used in physical therapy. This technique is used to treat restricted joint motion, pain, and soft tissue changes. It is a mobilization force applied parallel to the treatment plane in the concave joint surface.

In gliding mobilization, a physiotherapist uses various grades of pressure and amplitude to encourage joint movements. The therapist may use passive or active techniques depending on the condition. Passive techniques are performed by the therapist, while active techniques require the patient's active participation.

The purpose of gliding mobilization is to mobilize the joint surface, improve joint movement, and relieve joint pain. It can also help in improving the range of motion of joints. The process of gliding mobilization involves the application of force in the direction of the joint surface to promote joint movement.

This mobilization can be performed on various joints of the body, including the shoulder, knee, ankle, wrist, hip, and spine. It is important to note that gliding mobilization should only be performed by trained professionals. In conclusion, gliding mobilization is a therapeutic technique used to restore joint movement and alleviate pain.

to know more about gliding mobilization visit:

https://brainly.com/question/28101909

#SPJ11

Answer:

Because it is made by two different unit force (F) and displacement(s)

According to the data given in the question the net force on the box is of 5 N.

All of the forces that are applied to an object are added up to form the net force. As a consequence of the fact that it (force) is a vector and therefore that two forces with identical magnitudes and opposing directions cancel each other out, the resultant force is the total of the forces, or put another way, the net force is just the total of all the forces.

Given data :

Force on box to the left side (F1) = 15 N

Force on box to the right side (F2) = 20 N

Because both forces are in opposite direction

Hence,

Net force = F2 - F1

Net force = 20 - 15

Net force = 5 N.

To know more about net force visit :

https://brainly.com/question/14361879

#SPJ1

Of the four slope failures listed, a rock avalanche is most likely to cause large numbers of casualties.

A rock avalanche is a rapid and chaotic movement of rock debris down a slope, often triggered by earthquakes, heavy rainfall, or other geological factors. The fast-moving rocks can cause significant damage to anything in their path, including buildings, vehicles, and people.

In contrast, an earth flow is a slower and more gradual movement of soil or rock material down a slope, which can cause property damage but is less likely to result in casualties. Debris slides and creep are also slower and more gradual movements, although they can still cause significant damage in certain circumstances.

Therefore, a rock avalanche is the most dangerous of the four slope failures listed in terms of potential for casualties.

Learn more about casualties

https://brainly.com/question/2190665

#SPJ11

The digit with the least amount of confidence can be seen in the second part which is 7.

The number of significant figures in the measurement of the stopwatch is 4.

An elapsed time is the difference between the time prior to the commencement of an event and the time at which the event has ended.

From the stopwatch, the elapsed time is given as:

0hour : 13 minutes : 37 seconds

The digit with the least amount of confidence can be seen in the seconds part is 7.

A significant figure is a real figure that is dependable and absolutely essential to convey the quantity of something.

The number of significant figures in the measurement of the stopwatch is 4.

Learn more about elapsed time here:

https://brainly.com/question/10403745

Answer: 7 and 4

Explanation: A digital stopwatch reading 0:13 37.

Read the elapsed time on the stopwatch and answer the questions.

In which digit is there the least amount of confidence?

7

How many significant figures does this measurement have?

4

Explanation:

df = do + vot  + 1/2 at ^2      do = what you are looking for      df = ground = 0

0 = do + 6 (3 ) + 1/2 ( -9.81) (3^2)

do = 26.1 m

Answer:

Force = Work/Distance = 70 J/17 m = 4.118 N

Explanation:

i'm smart

The child must exert a force of 4.12 Newtons to pull the sled up the hill.

Force is a fundamental concept in physics that refers to a push or pull on an object. It is an interaction that can cause a change in the motion, shape, or orientation of an object. Force is a vector quantity, which means that it has both magnitude and direction.

Force is measured in Newton's (N) and is defined as the amount of force needed to accelerate a one-kilogram mass at a rate of one meter per second squared. The equation that describes force is F = ma, where F is force, m is mass, and a is acceleration.

There are several types of forces, including:

1. Contact forces: These are forces that act only when two objects are in contact with each other. Examples include friction, tension, and normal force.

2. Non-contact forces: These are forces that act even when two objects are not in contact with each other. Examples include gravity, electric force, and magnetic force.

3. Applied forces: These are forces that are directly applied to an object by a person or an external source. Examples include pushing a book across a table or pulling a sled up a hill.

4. Reactive forces: These are forces that are a reaction to an applied force. For example, if you push a wall, the wall exerts a reactive force back on you.

Understanding force is essential in many fields of science and engineering, as it helps us understand and predict the behavior of objects under different conditions.

Here in the Question,

To calculate the force exerted by the child, we can use the formula:

Work = Force x Distance x cos(theta)

Where:

Work = 70 J

Distance = 17 m

cos(theta) = 1 (assuming the force is exerted in the same direction as the displacement)

Plugging in the values, we get:

70 J = Force x 17 m x 1

Solving for Force, we get:

Force = 70 J / 17 m

Force = 4.12 N

Therefore, the child must exert a force of approximately 4.12 Newtons to pull the sled up the hill.

To learn more about Newton's law of motion click:

brainly.com/question/29775827

#SPJ2