Melanie is given an unknown substance by her teacher. Melanie’s teacher tells her that the substance has a bitter taste. Melanie also observes that the substance is slippery. These properties indicate that the substance may be which of the following?

Answer:

46.2m/s²

Explanation:

Given parameters:

Acceleration  = 18.2m/s²

Original force  = F

Decrease factor = 3.9

Unknown:

New acceleration = ?

Solution:

Let the original force  = F

            new force  = [tex]\frac{F}{0.39}[/tex]

        Original acceleration = 18.2m/s²

         new acceleration  = ?

According to newton's second law of motion;

       Force = mass x acceleration

  So,

        mass = [tex]\frac{Force}{Acceleration}[/tex]

   So; initial mass = final mass

                [tex]\frac{F }{18.2}[/tex]  = [tex]\frac{\frac{F}{0.39} }{acceleration}[/tex]

             [tex]\frac{F}{0.39}[/tex] x 18.2 = F x acceleration

            Acceleration = 46.2m/s²

Answer: b

Explanation: Cause the other guy said it was

Answer:

The answer is B. Exactly 80 g

Explanation:

I just did the test and got it right!

Hope this helps.

Answer:

9.66 L

Explanation:

The following data were obtained from the question:

Initial temperature (T1) = 84 ºC

Initial volume (V1) = 10 L

Final temperature (T2) = 72 ºC

Final volume (V2) =..?

Next, we shall convert celsius temperature to Kelvin temperature. This can be obtained as follow:

T(K) = T(°C) + 273

Initial temperature (T1) = 84 ºC

Initial temperature (T1) = 84 ºC + 273 = 357 K

Final temperature (T2) = 72 ºC

Final temperature (T2) = 72 ºC + 273 = 345 K

Since the pressure is constant, it means the gas is obeying Charles' law. Thus, we shall determine the new volume of the gas as follow:

Initial temperature (T1) = 357 K

Initial volume (V1) = 10 L

Final temperature (T2) = 345 K

Final volume (V2) =..?

V1/T1 = V2/T2

10/357 = V2/345

Cross multiply

357 × V2 = 10 × 345

Divide both side by 357

V2 = (10 × 345) / 357

V2 = 9.66 L

Thus, the new volume of the gas is 9.66 L.

Answer:

This Means Nothing to ME

Explanation:

I HAVE A tradition of doing a little analysis on one of my favorite movie franchises to celebrate Star Wars Day (May the Fourth Be With You). Given that Rogue One: A Star Wars Story recently appeared on DVD and various streaming services, I think its OK to look at that film without worrying about spoilers. In this case, I will calculate Darth Vader's power output as he uses the Force.

To calculate the power needed to lift this poor fellow, I can estimate how high Vader lifts him and at what speed. If I guess that the rebel is 1.75 meters tall (the average height of a man here on Earth, so I'll assume the same holds true on whatever planet the rebel calls home) then I can get an approximate scale for the scene. With that, I can use video analysis to plot the vertical position of the rebel as a function of time

Answer:

The first reason for children to have pretend play is that it allows the child to learn how to interact socially. The child is able to take turns, share responsibility, develop how people feel and react the situation. Another reason is that it helps the child develop their critical thinking skills. They may have to creatively solve a problem, or think what they may need in real life for the pretend play. It increases the child's ability to think through those types of situations. The final reason it is important for a child to have pretend play is that it helps develop their language skills. If the child is imitating a dad, mom, teacher, etc. they will attempt to use the same language that person uses. This helps the child connect new language abilities and skills.

Explanation:

Answer:

The top 3 reasons for encouraging children to pretend play and make-believe include:

1. To encourage imagination and creativity.

2. To support social and emotional development.

3. To improve language and communication skills.

Answer:

A

Explanation:

Forensic anthropology is a branch of anthropology that analyzes the remains of a body in order to solve criminal cases. A forensic anthropologist, therefore, is a scientist that studies and analyzes remains of bodies in order to unravel criminal cases.

Archaeology, on the other hand, has to do with the analyses of artifacts in relation to human culture. An archaeologist is a person that studies artifacts mainly.

Hence, while a forensic anthropologist specializes in the study of bodies, archaeologist searches and studies artifacts.

The correct option is A.

Answer:

the first lens is a converging lens also called biconvex lens

and second is a diverging lens called biconcave lens

Explanation:

Answer:

14.868

Density equals mass divided by volume

Answer:

it's gravitational potential energy would have converted to kinetic energy half way back when it's falls

Answer:

traveling at a constant acceleration

Answer:

Molecule

Explanation:

A molecule is the smallest particle of sugar (glucose - C6H12O6) or any other substance because a molecule possess all properties of that particular substance.

Molecules are responsible for all the chemical and physical properties of a substance, so molecules decided the properties of sugar as well. If the molecule will be broken, it will lose its properties. Sugar is composed of molecules that include 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen.

Hence, the correct answer is "Molecule".

Answer:

206 meters East

Explanation:

Assuming that the starting point of Lebron James 0. He ran from point 0 to 260 meters in the Eastern direction. His displacement is now 260 meters to the East.

He then turned from the Eastern to the Western direction - opposing directions - and then walked 54 meters to find his ball. His displacement from the starting point will now be:

260 - 54 = 206 meters in the Eastern direction.

Answer:

D 71.75

Explanation:

divide 2,009 miles by 28 hours

Which receives the most solar radiation?

A the polar zones

B the oceans

C the tempetra zones

D the equator ✅

Answer:

if we ignore air resistance .. which might slow her down a lot towards the end of the 7 seconds.. but we will just ignore that for this question

Explanation:

then V=Vo+a*t

Vo=0

V=a*t

V=9.8(7)

V=68.6 m/s  just a little over 150 MPH.. but.. I think terminal velocity is close to 120... soo hmm maybe about that fast... but that with air resistance.. so this problem depends a lot on if you're going to ignore that

Answer:

C. it will increase in speed

Explanation:

brainliest please? :))

Answer:

95000cm

Explanation:

Given parameter:

       0.95km

Problem;

  Convert km to cm;

Solution:

      100cm = 1m

      1000m = 1km

  So,

        100,000cm = 1km

             1km  = 100,000cm

             0.95km  = 0.95 x 100000 = 95000cm

Answer:

D. 3 Ohms

Explanation:

Answer:

Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water.

Explanation:

Destructive waves erode through four main processes; Hydraulic Action, Compression, Abrasion and Attrition.

Answer:

Below! ;)

Explanation:

Lots of people have the idea that erosion is where something is eroded away, and EVEN I thought that once, but erosion is the process in which parts of land are moved to a different province. Erosion can sometimes also bring in invacious species.

Hope this helps!

Have a nice day!

If you find my answer helpful

Pls consider marking my answer as Brainliest! It would mean a lot!

Explanation:

Power is change in energy over time.

P = (50 J) / (5 s)

P = 10 W

Answer: C

Explanation:

For this problem, we must divide.

50 ÷ 5 = 10

The answer to the question is 10

Answer:

89-95 lbs :p

Explanation:

smsksjsjfjjd

Answer:

See the answer below

Explanation:

Acceleration is the ratio of velocity and time. Hence;

Acceleration of the sprinter = 2/1 = 2 m/s2.

When the acceleration is constant and the velocity is double:

acceleration = velocity/time

2 = 4/time,

time = 4/2 = 2 s

Hence, the time it will take for the velocity to double with constant acceleration is 2 s. The sprinter's acceleration during this period would be 2 m/s2.

Acceleration is the change in velocity with time. Hence, the time taken to double velocity is 2 seconds and the constant value of acceleration is 2m/s²

Acceleration is the change in velocity with time ;

Acceleration = (2 ÷ 1) = 2m/s²

Double the value of velocity = 2(2m/s) = 4m/s

At constant acceleration ; Acceleration = 2m/s²

Inputting the Values into the equation :

2 = 4 / time

(2 × time) = 4

Time = 4/2

Time = 2 seconds

Therefore, the time taken to double the velocity is 2 seconds

Learn more :https://brainly.com/question/20273577

Answer:

along the upper right side

Explanation:

cause metals are on upper left side

The eyes, spinal cord, and brain are all main or key parts of the nervous system.

Answer:

t = 150 [s]

Explanation:

To solve this problem we must take into account that the car travels at a constant speed, that is, there is no acceleration or it is equal to zero, therefore we can use the following equation of kinematics.

X = Xo + (v*t)

where:

x = final point [m]

Xo = initial point [m]

v = constant velocity = 20 [m/s]

t = time [s]

X - Xo = the distance traveled = 3000 [m]

3000 = 20*t

t = 150 [s]

Answer:

Friction drag force causes objects to slow down as they move through a fluid, such as air or water. ... As an object's speed increases, the drag force from the fluid increases exponentially.

Answer:

Friction slows down an object using its rough surface

Explanation:

Friction is the force between objects. friction moves in the opposite direction which slows it down, it is very helpful when you want to stop a moving object

Explanation:

To convert from °C to K, we use the expression below;

           tK = t°C + 273

tK = temperature in Kelvin

t°C = temperature in celcius

A.  50°C;

        tK = 50 + 273  = 323K

B. 10°C;

      tK = 10 + 273 = 283K

C. 17°C;

     tK  = 17 + 273 = 290K

D, -40°C

    tK = -40 + 273  = 233K

Answer:

hope this will help u

Explanation:

Al + CuCl2 => AlCl2 + Cu

Answer:

Radio waves.

Explanation:

Radio waves are at the far left of the EMS with a low frequency. Higher frequencies, such as Gama rays, cause more harm than the lower frequencies