plz help ASAP I will mark brainliest

Answer:

Weight and Mass !!!!!!

Explanation:

Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together. Air resistance causes the feather to fall more slowly.

Answer:

5-2 / 1.8 = 1.66m/s

Explanation:

acceleration = vf-vi / t

vf= 5m/s

vi= 2m/s

t= 1.8 s

Answer:

d

Explanation:

i looked it up

Deposition is when a gaseous state changes to solid state by escaping liquid state. So I think it is 3. Liquid glass cools and hardens

Answer:

All matter is made up of particles that are constantly moving. The motion of the particles results in kinetic energy. The part of total internal energy that can be transferred is thermal energy. As temperature increases, the particles in a substance move faster and have greater kinetic and thermal energy.

Explanation:

Answer:

A seesaw

Explanation:

Answer:

a seesaw

Explanation:

Answer:

It is an example of velocity

Explanation:

It is an example of velocity Don't ask how I know because I do know it I just don't know how to explain it.

Answer:

gexp = 3.65 m/s²

Explanation:

The value of acceleration due to gravity changes with the altitude. The following formula gives the value of acceleration due to gravity at some altitude from the sea level:

gexp = g(1 - 2h/Re)

where,

gexp = expected value of g at altitude = ?

g = acceleration due to gravity at sea level = 9.8 m/s²

h = altitude = 2000 km = 2 x 10⁶ m

Re = Radius of Earth = 6.37 x 10⁶ m

Therefore,

gexp = (9.8 m/s²)(1 - 2*2 x 10⁶ m/6.37 x 10⁶ m)

gexp = 3.65 m/s²

Answer:

Frozen water molecules vibrate more and more until they break free of the ice crystal. Liquid water molecules move faster and faster until they break free of the liquid.

Until all the bonds keeping the molecules in a crystal structure are broken, nothing can be done to raise the kinetic energy of the molecules in the liquid state. Thus, the temperature doesn't change until all the ice has melted. When water is heated to boiling point, the same thing occurs.

Melting point, the temperature at which a pure substance's solid and liquid states can coexist in equilibrium. A solid's temperature rises when heat is added to it until it reaches the melting point. The solid will then become a liquid with no change in temperature with the addition of more heat.

The temperature at which the pressure of a liquid exerted by its surroundings equals the pressure of the liquid's vapor is known as the boiling point. At this temperature, the addition of heat causes the liquid to turn into its vapor without rising the temperature.

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#SPJ2

Answer:

Cd(NO3)2 + Na2S --> CdS + 2 NaNO3

Explanation:

Answer:

1.to look at your face of their is a mess.

2.to see if your hair is messy.

3.to see of your name is messy

Explanation:

none

Answer:

The answer is left

Explanation:

because 20N is greater Then 10N

Answer:

(A). The horizontal initial velocity is 25 m/s.

(B).  The vertical initial velocity is 43.3 m/s.

(C). The velocity component is

[tex]u_{x}=u\cos\theta[/tex]

[tex]u_{y}=u\sin\theta[/tex]

Explanation:

Given that,

Initial velocity = 50.0 m/s

Angle = 60°

We need to calculate the component of velocity

Using formula of component

(A). Horizontal initial velocity

[tex]\cos\theta=\dfrac{u_{x}}{u}[/tex]

Put the value in to the formula

[tex]\cos60=\dfrac{u_{x}}{50}[/tex]

[tex]u_{x}=50\times\cos60[/tex]

[tex]u_{x}=25\ m/s[/tex]

(B). Vertical initial velocity

[tex]\sin\theta=\dfrac{u_{y}}{u}[/tex]

Put the value in to the formula

[tex]\sin60=\dfrac{u_{y}}{50}[/tex]

[tex]u_{y}=50\times\sin60[/tex]

[tex]u_{y}=43.3\ m/s[/tex]

The velocity component is

[tex]u_{x}=u\cos\theta[/tex]

[tex]u_{y}=u\sin\theta[/tex]

Hence, (A). The horizontal initial velocity is 25 m/s.

(B).  The vertical initial velocity is 43.3 m/s.

(C). The velocity component is

[tex]u_{x}=u\cos\theta[/tex]

[tex]u_{y}=u\sin\theta[/tex]

Answer:

1. states

2. kinetic theory

3.particles cqlled atoms

4.motion

5.collide

thats all I remember

Answer:

Did you make a diagram?

Make your hypotenuse 10 and the base angle 30°

find the length of the adjacent side using

10cos30°

Explanation:

Answer:

A soccer player kicks a ball with an initial velocity of 10.0 meters per second at an angle of 30.0° above the horizontal. The magnitude of the horizontal component ofthe ball's initial velocity is which of the following?

9.8 m/s

0.50 m/s

15 m/s

7.4 m/s

Explanation:

Answer:

m = 68,486,6 g is the answer.

Explanation:

To calculate mass you use formula:

m= V*r

To avoid remembering this formula you can see the type of unit on each given variable. We can see that we have g/cm^3 and cm^3. If we multiply them, we negate cm^3 and cm^3 and we are left with g which is unit for mass.

Hope I helped! ☺

148.49 minutes

First find the cubic inch area of the pool.

33.8 x 40 x 11.1

You get 15007.2

Convert that to inches by multiplying it by 12.

You get 180086.4. Divide that by 231 since each 1 gallon is 231 cubic inches.

You get 779.594805

Now divde that by 5.25 (rate of flow)

You get 148.49 rouned to the nearest hundreth.

If you are able to do brainliest, I'll be happy. This took some big division...

Answer:

[tex]\boxed {\tt \frac{2}{3} \ or \ 0.666666667 \ g/cm^3}[/tex]

Explanation:

Density can be found by dividing the mass by the volume.

[tex]d=\frac{m}{v}[/tex]

The mass is 20 grams.

We have to find the volume.

[tex]m= 20 \ g\\v= 30 \ cm^3[/tex]

Substitute the values into the formula.

[tex]d=\frac{20 \ g}{30 \ cm^3}[/tex]

Divide.

[tex]d=\frac{2}{3} \ g/cm^3[/tex]

[tex]d= 0.666666667 \ g/cm^3[/tex]

The density is 2/3 grams per cubic centimeter.

Answer:

Explanation:

To find how long it took the ball to reach the end we use the formula

[tex]t= \frac{d}{v} \\ [/tex]

where

t is the time

d is the distance

v is the velocity

From the question

d = 18 m

v = 7.5 m/s

We have

[tex]t = \frac{18}{7.5} \\ [/tex]

We have the final answer as

Hope this helps you

The real advantage to hydrostatic weighing is that it gives one of the most accurate measurements of body fat.

It should be noted that the real advantage to hydrostatic weighing is that it gives one of the most accurate measurements of body fat.

Hydrostatic weighing can be regarded as underwater weighing which is very good and accurate ways to measure body fat.

Therefore, option B is correct.

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Answer:

A

Explanation:

Because the centripetal force is always towards the radius of a circle

Answer:

Searching in Google I found that in problem 2 were two boys pulling the heavy cabinet, a Boy A pulling in the left direction with 10 N of force, and a boy B pulling in the right direction with 5 N.  

1. F = 10 N

2. Yes, it will move.

3.  It will move to the left direction of the cabinet (same direction as the boys A and C).

Explanation:

Searching in Google I found that in problem 2 were two boys pulling the heavy cabinet, a Boy A pulling in the left direction with 10 N of force, and a boy B pulling in the right direction with 5 N.  

1. Hence, if another boy (C) pull in the same direction as the boy A with 5 N of force, we have:

[tex] \Sigma F = F_{A} + F_{C} - F_{B} [/tex]

[tex] \Sigma F = 10 N + 5 N - 5 N = 10 N [/tex]

The net force on the cabinet is 10 N.

2. Yes, the cabinet will move. From point 1 we can deduce that the cabinet will move since the net force on the cabinet is different from zero (10 N).                    

3. The direction of the motion is the same as the Boys A and C, that is to say, to the left of the cabinet.      

I hope it helps you!

The net force acting on an object, is the vector sum of all the forces acting on it

The correct values for the forces acting on the cabinet are;

1. The net force on the cabinet is 10 N

2. Yes, the cabinet will move

3. The cabinet will move in the direction of boy A and boy C

The reason the above values are correct are as follows:

Question: The possible missing part of the question is; In problem 2 boy A is pulling a heavy cabinet with [tex]F_A[/tex] = 10 N force, and boy B is pulling the same cabinet at the same time and in opposite direction with a force of [tex]F_B[/tex] = 5 N

The known parameter:

The force with which boy C pulls the heavy cabinet = 5 N

The direction in which boy C pulls the cabinet = The same direction as boy A

Question 1. The net force on the cabinet, [tex]F_{NET}[/tex] is given as follows;

Taking the direction of the force of boy A as the positive direction, we have;

[tex]\overset \longrightarrow {F_A}[/tex] = 10 N

[tex]\overset \longrightarrow {F_B}[/tex] = - 5 N

[tex]\overset \longrightarrow {F_C}[/tex] = 5 N

[tex]\overset \longrightarrow {F_{NET}}[/tex] = [tex]\overset \longrightarrow {F_A}[/tex] + [tex]\overset \longrightarrow {F_B}[/tex] + [tex]\overset \longrightarrow {F_C}[/tex]

[tex]\overset \longrightarrow {F_{NET}}[/tex] = 10 N + (-5 N) + 5 N = 10 N

The net force on the cabinet, [tex]\overset \longrightarrow {F_{NET}}[/tex] = 10 N

Question 2. Yes: Given that there is a net force acting on the cabinet, according to Newton's first law of motion, in the absence of friction force, the cabinet will move in the direction of the net force of 10 Newton

Question 3. The cabinet will move in the direction of the net fore

The direction of the net force is the direction boy A and boy C are pulling the cabinet

Therefore, the cabinet will move in the direction boy A and boy C are pulling the heavy cabinet

Learn more about addition of forces here:

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Answer:

Explanation:

whale speed = 8 m/s for 17 sec.

find distance traveled in km

distance = velocity x time

              = 8 m/sec. x 17 sec.

              = 136 meters  x        1   km      

                                           1000 meters

              =  0.136 km

Accelerator mass spectrometers are used in modern isotope counting.

So, option B. is correct.

Isotopes are two or even more kinds of atoms with the same atomic masses but differing nucleon numbers leading to varying numbers of neutrons within their nuclei.

Accelerator mass spectrometry would be a type of mass spectrometry in which ions are accelerated to extremely high kinetic energy before being analyzed for mass.

Accelerator mass spectrometers are used in modern isotope counting.

Option B. is correct.

Find out more information about isotope here:

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Answer:

thanks

Explanation:

Answer:

35 m/s = v KE= 1/2 m x v^2. 89= m x 1224

89 J = KE 89 = 1/2 (m) x (35)^2. m = 0.15 kg.