PHYSICS HIGH SCHOOL

Suppose you want to separate the leaves, acorns, and twigs from a pile of soil. Filtration and distillation are two processes of separating mixtures. Explain which process you would use and why.Have only 30 minutes to answer!!!!!
I will mark brainliest!

Answers

Answer 1
Answer: filtration b/c you can use different size filters
Answer 2
Answer:

Mark him brainliest! XD


(your welcome btw)

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A baseball of mass 250g, pitched with a speed of 40m/s is caught by the catcher, whose glove moves backward 0.25m while stopping the ball. What was the kinetic energy of the ball before it was caught?

Answers


I don't think we care about the motion of the catcher's glove. 

The mass of the ball is 0.25kg and its speed is 40m/s. 
So its kinetic energy is . . .

     KE = 1/2 (mass) (speed)² =
 
               (0.125 kg) (40m/s)² =

                        200 kg-m²/s² = 200 joules .
The kinetic energy is =.5mv^2 so the amount the glove moved beforehand is irrelevant and typically this is measured in Kgm/s so 250g is .25kg and v^2 is 40x40 so 1600 lastly 1600x.5x.25 is 200kgm/s :)

HELP ME PLEASEIn which prenatal stage is a fetus' genitalia clearly male or female?
A. zygote stage B. germinal stage C. embryonic stage D. fetal stage

Answers

In the fetal stage, the genitalia of a fetus is developed. Thus option D, the fetal stage is correct.

What is the prenatal stage?

The time period from the formation of the zygote to the parturition is called the prenatal stage and it is also known as the antenatal stage. In this stage, division and differentiation of the zygote take place to form an embryo, and then the development of the embryo to form a fetus.

The prenatal stage consists of 3 stages:

1) Germinal stage

2) Embryonic stage

3) Fetal stage

The time period of the first two weeks after conception is known as the germinal stage, from the third to eighth week is the embryonic stage, this stage begins after implantation, and from the ninth week to the parturition is the fetal stage. The genitalia of a fetus can be clearly differentiated by the twelfth week.

Therefore, option D, the fetal stage is correct.

Learn more about the prenatal stage, here:

brainly.com/question/6907460

#SPJ3

Answer:

D is the right answer

Explanation:

Suppose your rub a balloon in your hair and it acquires a static charge of −2 × 10⁻⁹c. what is the magnitude of the electric field created by the balloon at a location 1 m due north of the balloon? Coulomb’s constant is 9 × 10⁹ N · m²/c² . Answer in units of N/C

Answers

To find the magnitude of the electric field created by the balloon at a location 1 m due north of the balloon, we can use Coulomb's law. Coulomb's law states that the electric field (E) created by a point charge is given by the equation E = k * (Q / r^2), where k is Coulomb's constant, Q is the charge, and r is the distance from the charge.

Given that the charge of the balloon is -2 × 10^(-9) C and the distance from the balloon is 1 m, we can substitute these values into the equation:

E = (9 × 10^9 N · m²/C²) * (-2 × 10^(-9) C) / (1 m)^2

Note that the negative sign indicates the direction of the electric field, which in this case is due north.

E ≈ -18 N/C

Therefore, the magnitude of the electric field created by the balloon at a location 1 m due north of the balloon is approximately 18 N/C.

Which is an example of colloid

Answers

Colloid mixtures can be solids, liquids, or gases. EX- Would include, butter, milk, and frog. There are actually 8 types of colloid mixtures, they are usally described by orginal state.

Which statement explains the first law of thermodynamics?.

Answers

Energy is transformed and transferred in a thermodynamic system. Option B is correct

First law of thermodynamics:

It states the energy neither be created nor destroyed. It change its form from one to another. It is also known as law of conservation of energy.

It is given by the formula,

\Delta U = Q - W

Where,

\Delta U - change in internal energy

Q -    heat added

W-    work done by the system

Since, heat is a form of energy, hence it is follow the principle of conservation of energy.

Therefore, energy is transformed and transferred in a thermodynamic system. Option B is correct

To know more about First law of thermodynamics:

brainly.com/question/7107028

Answer:

2: A,D,E or 1,4,5

3: B

4: B

5: 12 joules

6: 53 joules

7: B,C,E or 2,3,5

8: 2,4,3,1

9: Electrical energy in the stove is transformed into heat. The heat flows to the water in the kettle, increasing the internal energy of the water. As the energy in the water increases, the water molecules move faster until the liquid water becomes water vapor. The water vapor does work on the whistle, causing it to make a sound. Energy is neither created nor destroyed, it has simply changed form in the process.

Explanation:

youre welcome

An increase in which quantity will result in an increase in momentum?A).velocity
B).force
C).gravity
D).distance

Answers

An increase in the velocity of an object will increase the momentum of the object.

What is momentum?

The momentum of an object is determined from the product of mass and velocity of an object.

P = mv

where

  • m is the mass of the object
  • v is the velocity of the object

Thus, an increase in the velocity of an object will increase the momentum of the object.

Learn more about momentum here: brainly.com/question/7538238

Answer:

a. velocity.      PLATO USERS

Explanation:
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