What does velocity mean in physics and what is it used for?

Answer:

[tex]v = 0.25m/s[/tex]

Explanation:

Given

[tex]\lambda = 0.02m[/tex] --- Wavelength

[tex]T = 8.0 * 10^{-2}s[/tex] --- Period

Required

Determine the velocity of the wave

This is calculated using:

[tex]v = \frac{\lambda}{T}[/tex]

[tex]v = \frac{0.02m}{8.0*10^{-2}s}[/tex]

[tex]v = \frac{0.02m}{8.0*0.01s}[/tex]

[tex]v = \frac{0.02m}{0.08s}[/tex]

[tex]v = 0.25m/s[/tex]

Hence, the velocity is 0.25m/s

Answer:

0.75m/s^2

Explanation:

3.6-1.2=2.4 m/s (Change in velocity)

2.4/3.2=0.75 m/s/s or m/s^2

Answer:

The relationship the exist between the rams is a mild one.

Explanation:

Answer:

a have a bright tail and a glowing nucleus

A dwarf planet is most likely to have a bright tail and a glowing nucleus. Thus, the correct option is A.

A dwarf planet is a small planetary-mass object which is in direct orbit that of the Sun, it is smaller than any of the eight classical planets however it is still a world in its own right.

The prototypical dwarf planet is Pluto. The dwarf planets is that the geologically active bodies, which is an expectation that was borne out in 2015 by the Dawn mission to Ceres and the New Horizons mission to Pluto.

Dwarf planets always being in orbit around the Sun. They are not being a satellite of a planet. They having a mostly round shape due to its own gravity. They also have not cleared its neighboring region of debris.

Therefore, the correct option is A.

Learn more about Dwarf planet here:

https://brainly.com/question/2274077

#SPJ2

Answer:

Increased lean muscle tissue.

Explanation:

I hope this helps :) Tell me if I am wrong!

Answer:

Increased lean muscle tissue.

Explanation:

i took the test!

Answer:

8 minutes and 20 seconds

Explanation:

5000/10 to get the number of seconds, which is 500, then you convert 500 seconds to minutes and you get 8 minutes and 20 seconds

Answer:

1.100 Mile House is a town and district municipality located in the South Cariboo region of central British Columbia.

2.Joan is taller than Stefan. Stefan is taller than Patrick. Joan is taller than Patrick

3.the sides of rhombus are equal.

4.A prime number has exactly two factors, 1 and itself. For example, 13 is a prime number because the only factors of 13 are 1 and 13.

Distance = (speed) x (time)

Time = (distance) / (speed)

Time = (22 km) / (55 km/hr)

Time = (22/55) (hr)

Time = 0.4 hour  (that's 24 minutes)

Answer:

Linear magnification refers to the ratio of image length to object length measured in planes that are perpendicular to the optical axis. A negative value of linear magnification denotes an inverted image.

Explanation:

Answer:

i hope it help

Explanation:

stay happy and safe

' A ' and ' D ' are both correct statements.

Answer:

a) 2000 m

b) 1500 mm

c) 580000 cm

d) 400 mm

e) 2.7 cm

f ) 0.126 m

g) 0.012 km

Explanation:

Transform

a) 2km to m

   1 km = 1000m

hence : 2 km = 2 * 1000 =  2000 m

b) 1.5m to  mm

    1 m = 1000 mm

hence: 1.5 m = 1.5 * 1000 = 1500 mm

C) 5.8 km  to cm

     1 km = 100000 cm

hence ;5.8 km = 5.8 * 100000 = 580000 cm

D) 0.4 m   to  mm

   1 m = 1000 mm

hence; 0.4 m =  0.4 * 1000 = 400 mm

E) 27 mm to  cm

   1 mm = 0.1 cm

hence ; 27 mm = 27 * 0.1  = 2.7 cm

F) 126mm  to m

    1 mm = 0.001 m

hence ;  126 mm = 126 * 0.001 = 0.126 m

G) 12m  to Km

   1 m = 0.001 km

hence ; 12 m = 12 * 0.001 = 0.012 km

Answer:

There would be 600km

Explanation:

Answer:

Explanation:

Momentum

Answer:

Subsistence farming is growing food for your own and your family's direct consumption. Like a backyard vegetable garden, but with fruit, starch crops, and animals as well. Intensive agriculture is anything that really works the land hard. The inputs cost money, so it is generally only done for profit

hope it becomes helpful to you ☺️☺️

good luck

Answer:

em waves do so because they require no medium to travel...space =vacuum)))

while sound waves that are longitudinal waves...require medium to travel......so in space it has vacuum.....it can't travel..

Answer:

yesssssssssssssssssssssssssssssssssssss

because i said so

the answer is 80 diveded by 8 equalzzzz

Answer:

Extension, e = 0.4 meters

Explanation:

Given the following data;

Force = 40N

Spring constant, k = 100N/m

To find the extension;

Force = spring constant * extension

Substituting into the equation, we have

40 = 100 * extension

Extension, e = 40/100

Extension, e = 0.4 meters

Therefore, the spring can be compressed by the force over a distance of 0.4 meters.

Answer:

hope that helps

Explanation:

sound energy to chemical energy.

electrical energy to sound energy.

sound energy to electrical energy.

Answer:

unbalanced 1st answer

Answer:

hi, your answers are correct

Explanation:

Answer:heart

The hardest working muscle is the heart. It pumps out 2 ounces (71 grams) of blood at every heartbeat. Daily the heart pumps at least 2,500 gallons (9,450 liters) of blood. The heart has the ability to beat over 3 billion times in a person's life.

Explanation:hope this helps

Answer:

False.

Explanation:

Potential of Hydrogen is the full form of PH.

Potential of Hydrogen tells about the acidity or basicity of the solution.

The pH of a solution is a measure of the concentration of hydrogen ions [tex](H+)[/tex] ions and hydroxide ions [tex](OH-)[/tex] in a solution.

So, the given statement is false.

Explanation:

Electrical energy is energy derived from electric potential energy or kinetic energy. When used loosely, electrical energy refers to energy that has been converted from electric potential energy.

HOPE THIS HELPS YOU

Answer:

Hi!

Explanation:

Its kinetec energy moving by electric charges.

Answer:

I think the answer is D...

Explanation:

Answer:

3.7 kg

Explanation:

Start off by drawing and labeling a free-body diagram for the object. I have attached an image that I drew that shows all of the relevant forces acting on the object.

On the free-body diagram, we have the tension forces (T₁ and T₂), their x and y components, and the weight force (w).

We want to start off by finding the angle theta (Θ) so that we can use this angle when using Newton's Second Law later on in the problem to calculate the mass of the object.

We can find the angle Θ by using the fact that there are no unbalanced horizontal forces acting on the object, so the net force is zero.

This means that T₁ sin(40) is equal to T₂ sin(Θ). Set them equal to each other in an equation and solve for the angle Θ. We are given the tension forces: T₁ = 34 N and T₂ = 24 N.

Evaluate 34 * sin(40) and divide it by 24 to isolate sin(Θ).

Take the inverse sine of both sides of the equation.

Now that we have the angle Θ, we can use this to set up an equation involving mass using Newton's Second Law.

We know that there is a weight force directed downwards on the object, and this weight force is equal to mg (mass · gravitational acceleration).

There are two forces acting upwards on the object: the x-components of the two tension forces.

Using the fact that the object is not moving vertically, we know that the net force must equal 0 (since F = ma and acceleration = 0 m/s², therefore F = 0 N).

The sum of the forces in the y-direction will be equal to 0. Setting the upwards direction to be positive and the downwards direction to be negative, we can write this equation:

Add mg (weight force) to both sides of the equation.

Substitute 34 for T₁ and 24 for T₂.

The gravitational acceleration on Earth is 9.8 m/s². Substitute this value into the equation and solve for m, the mass of the object.

Evaluate the left side of the equation.

Divide both sides of the equation by 9.8.

Round this to two significant figures since the problem gives us the tension forces to two sig figs.

The mass of the object shown is around 3.7 kg.

Answer:

3.7 kg

Explanation:

Start off by drawing and labeling a free-body diagram for the object. I have attached an image that I drew that shows all of the relevant forces acting on the object.

On the free-body diagram, we have the tension forces (T₁ and T₂), their x and y components, and the weight force (w).

We want to start off by finding the angle theta (Θ) so that we can use this angle when using Newton's Second Law later on in the problem to calculate the mass of the object.

We can find the angle Θ by using the fact that there are no unbalanced horizontal forces acting on the object, so the net force is zero.

This means that T₁ sin(40) is equal to T₂ sin(Θ). Set them equal to each other in an equation and solve for the angle Θ. We are given the tension forces: T₁ = 34 N and T₂ = 24 N.

T₁ sin(40) = T₂ sin(Θ)

34 * sin(40) = 24 * sin(Θ)

Evaluate 34 * sin(40) and divide it by 24 to isolate sin(Θ).

0.9106157804 = sin(Θ)

Take the inverse sine of both sides of the equation.

Θ = sin⁻¹(0.9106157804)

Θ = 65.59058699°

Now that we have the angle Θ, we can use this to set up an equation involving mass using Newton's Second Law.

We know that there is a weight force directed downwards on the object, and this weight force is equal to mg (mass · gravitational acceleration).

There are two forces acting upwards on the object: the x-components of the two tension forces.

Using the fact that the object is not moving vertically, we know that the net force must equal 0 (since F = ma and acceleration = 0 m/s², therefore F = 0 N).

The sum of the forces in the y-direction will be equal to 0. Setting the upwards direction to be positive and the downwards direction to be negative, we can write this equation:

∑Fᵧ =  T₁ cos(40) + T₂ cos(65.59058699) - mg = 0

Add mg (weight force) to both sides of the equation.

T₁ cos(40) + T₂ cos(65.59058699) = mg

Substitute 34 for T₁ and 24 for T₂.

34 * cos(40) + 24 * cos(65.59058699) = mg

The gravitational acceleration on Earth is 9.8 m/s². Substitute this value into the equation and solve for m, the mass of the object.

34 * cos(40) + 24 * cos(65.59058699) = m(9.8)

Evaluate the left side of the equation.

35.96360799 = 9.8m

Divide both sides of the equation by 9.8.

m = 3.669755918

Round this to two significant figures since the problem gives us the tension forces to two sig figs.

m ≈ 3.7 kg

The mass of the object shown is around 3.7 kg.