ASAP!!!!!! I need help is my final

Answer:

How does space exploration affect the economy of Florida?

A) Since rockets launched from Florida are paid for by the federal government, there is a positive effect on Florida's economy.

Answer:Shape

I took the quiz

Answer:shape

Explanation:

I took the quiz

Answer:

rectilinear propagation of light

reflection of light

refraction of light

Answer:

probably potentially energy

Explanation:

hopefully this helps

Answer: 4h

Explanation:

Given

The body is thrown vertically upward with velocity u and reaches a height of h

The relation between u and h is given by

[tex]\Rightarrow v^2-u^2=2as\\[/tex]

Put [tex]v=0,a=-g[/tex] in above equation

[tex]\Rightarrow 0-u^2=2(-g)h\\\\\Rightarrow h=\dfrac{u^2}{2g}[/tex]

If the velocity of projection is doubled i.e. 2u

[tex]\Rightarrow h'=\dfrac{(2u)^2}{2g}\\\Rightarrow h'=4\times \dfrac{u^2}{2g}\\\\\Rightarrow h'=4h[/tex]  

The maximum height becomes 4h

Answer:

the maximum speed of the ball is 12.65 m/s

Explanation:

Given;

mass of the ball, m = 40 g = 0.04 kg

spring constant, k = 25 N/m

Apply the principle of conservation of energy;

The Elastic potential energy of the spring will be converted into Kinetic of the ball;

[tex]\frac{1}{2} kx^2 = \frac{1}{2} mv^2\\\\ kx^2 = mv^2\\\\v^2 = \frac{kx^2}{m} \\\\v = \sqrt{\frac{kx^2}{m}} \\\\v = \sqrt{\frac{(25)(0.506)^2}{0.04}} \\\\v = \sqrt{160.0225} \\\\v = 12.65 \ m/s[/tex]

Therefore, the maximum speed of the ball is 12.65 m/s

Answer:

they can blend in with their suroundings

Explanation:

Answer:

La velocidad que tendrá el móvil cuando hayan transcurrido 2 minutos es 200 m/s.

El espacio que habrá recorrido el móvil durante 2 minutos es 13200 metros.

Explanation:

El movimiento rectilíneo uniformemente variado o MRUV es un movimiento que ocurre sobre una línea recta con aceleración constante. En otras palabras, un cuerpo realiza un  movimiento rectilíneo uniformemente variado cuando su trayectoria es una línea recta y su aceleración es constante y distinta de 0. Esto implica que la velocidad aumenta o disminuye su módulo de manera uniforme.

La velocidad que tendrá un móvil luego de un tiempo t será:

v= v0 + a*t

donde v0 es la velocidad inicial y a es la aceleración.

En este caso v0= 20 m/s, a=1,5 m/s² y t=2 minutos= 120 segundos. Reemplazando y resolviendo se obtiene:

v= 20 m/s + 1.5 m/s²* 120 segundos

v= 200 m/s

La velocidad que tendrá el móvil cuando hayan transcurrido 2 minutos es 200 m/s.

La expresión de la  posición en función del tiempo para el movimiento uniformemente variado es:

x= x0 + v0*t + [tex]\frac{1}{2}[/tex] *a*t²

donde x0 es la posición inicial, v0 es la velocidad inicial y a es la aceleración.

En este caso x0= 0 m, v0= 20 m/s, a=1,5 m/s² y t=2 minutos= 120 segundos. Reemplazando y resolviendo se obtiene:

x= 20 m/s* 120 s +  [tex]\frac{1}{2}[/tex] * 1.5 m/s² *(120 s)²

x= 2400 m + 10800 m

x= 13200 m

El espacio que habrá recorrido el móvil durante 2 minutos es 13200 metros.

Answer:

In this section, we elaborate and extend the result we derived in Potential Energy of a System, where we re-wrote the work-energy theorem in terms of the change in the kinetic and potential energies of a particle. This will lead us to a discussion of the important principle of the conservation of mechanical energy. As you continue to examine other topics in physics, in later chapters of this book, you will see how this conservation law is generalized to encompass other types of energy and energy transfers. The last section of this chapter provides a preview.

The terms ‘conserved quantity’ and ‘conservation law’ have specific, scientific meanings in physics, which are different from the everyday meanings associated with the use of these words. (The same comment is also true about the scientific and everyday uses of the word ‘work.’) In everyday usage, you could conserve water by not using it, or by using less of it, or by re-using it. Water is composed of molecules consisting of two atoms of hydrogen and one of oxygen. Bring these atoms together to form a molecule and you create water; dissociate the atoms in such a molecule and you destroy water. However, in scientific usage, a conserved quantity for a system stays constant, changes by a definite amount that is transferred to other systems, and/or is converted into other forms of that quantity. A conserved quantity, in the scientific sense, can be transformed, but not strictly created or destroyed. Thus, there is no physical law of conservation of water.

Systems with a Single Particle or Object

We first consider a system with a single particle or object. Returning to our development of (Figure), recall that we first separated all the forces acting on a particle into conservative and non-conservative types, and wrote the work done by each type of force as a separate term in the work-energy theorem. We then replaced the work done by the conservative forces by the change in the potential energy of the particle, combining it with the change in the particle’s kinetic energy to get (Figure). Now, we write this equation without the middle step and define the sum of the kinetic and potential energies, K+U=E; to be the mechanical energy of the particle

Answer:

A. Both open and close

Explanation:

just took the test

Answer: Be more specific

Answer:

uno thos threse u here me

Explanation:

Answer:

4.096 kW

Explanation:

Applying,

P = Fvcos∅................. Equation 1

Where P = Power of the motor, F = Force exerted on the motor, v = Velocity, ∅ = angle.

From the question,

Given: F = 500 N, v = 10 m/s, ∅ = 35°

Substitute these values into equation 1

P = 500×10×cos35°

P = 4095.8 W

P = 4.096 kW

Hence the power rating of the moto in kW is 4.096 kW

Answer:

Larger, because both the Sun and Moon are pulling it.

Explanation:

Answer:

maybe c

I think its c

hope it helped

Answer:

If the population of rabbits was altered then the food chain would be affected because if the population decreased then the animals that prey on rabbits wouldn't have as much food as they used to so the predators of the rabbits would decrease. If the population increased then the animals that prey on rabbits would increase. Overall, if rabbits had a change in population then the food chain would become effected, because if rabbits decrease then their predators decrease in population as well, the same goes for an increase in population.

(hope this helped!)

Globular star clusters form from tightly packed groups and/or older ancient stars.

Globular star clusters can be defined as ancient stars packed in a spherical and/or symmetrical shape.

Globular star clusters represent the most common types of groups (i.e., clusters) of ancient stars.

These groups of stars (globular) are characterized to be densest in the center of the cluster.

In conclusion, globular star clusters form from tightly packed groups and/or older ancient stars.

Learn more about globular star clusters here:

https://brainly.com/question/21379923

Answer:

The wavelength of the wave in shallow water is 2.91 m.

Explanation:

Given;

frequency of the wave, f = 1.1 Hz

speed of the wave in deep water, v₁ = 5.7 m/s

speed of the wave in shallow water, v₂ = 3.2 m/s

The wavelength of the wave in the deep water is calculated as;

λ₁ = v₁/f

λ₁ = 5.7 / 1.1

λ₁ = 5.18 m

The wavelength of the wave in the shallow water is calculated as;

λ₂ = v₂/f

λ₂ = 3.2 / 1.1

λ₂ = 2.91 m

Therefore, the wavelength of the wave in shallow water is 2.91 m.

Answer:

proof in explanation

Explanation:

First, we will calculate the number of half-lives:

[tex]n = \frac{t}{t_{1/2}}[/tex]

where,

n = no. of half-lives = ?

t = total time passed = 2100 million years

[tex]t_{1/2}[/tex] = half-life = 700 million years

Therefore,

[tex]n = \frac{2100\ million\ years}{700\ million\ years}\\\\n = 3[/tex]

Now, we will calculate the number of uranium nuclei left ([tex]n_u[/tex]):

[tex]n_u = \frac{1}{2^{n} }(total\ nuclei)\\\\n_u = \frac{1}{2^{3} }(6400\ million)\\\\n_u = \frac{1}{8}(6400\ million)\\\\n_u = 800\ million[/tex]

and the rest of the uranium nuclei will become thorium nuclei ([tex]u_{th}[/tex])

[tex]n_{th} = total\ nuclei - n_u\\n_{th} = 6400\ million-800\ million\\n_{th} = 5600\ million[/tex]

dividing both:

[tex]\frac{n_{th}}{n_u}=\frac{5600\ million}{800\ million} \\\\n_{th} = 7n_u[/tex]

Hence, it is proven that after 2100 million years there are seven times more thorium nuclei than uranium nuclei in the rock.

Answer:

Greatest gravitational energy is at "C".

The planet has to do work "against" the field to get to "C".

Also, if m v R (angular momentum) is constant then as R increases v must decrease for this term to be constant and KE = 1/2 M v^2  must decrease also to get to point C.

Answer:

A prism causes the different wavelengths of light or colors that can be found in white light because the prism is white, and white light contains all colors in the visible light spectrum. So an object that reflects all the colors in the visible light spectrum will appear white in color because white light contains all colors in the visible light spectrum.

Explanation:

I hope this helps! I just did a test with this question and I got the answer right! This is the answer that I put. Good luck :)

Answer:

Milk Lactometer

Milk Lactometer: A lactometer is an instrument that is used to check for the purity of milk by measuring its density.

lactometer is used to determine the purity of milk

hope it is helpful to you

Answer:

When Brad was swimming in the ocean and then he observed that the sand was more hotter than the water of the ocean. The water is colder than the sand because the water needs more energy as compared to sand to change its temperature. This is because the water has a higher specific heat than sand.

Explanation:

Answer:

A disturbance or vibration in matter

Explanation:

Answer:

A mechanical wave is a distance in matter that transfer energy through the matter. A mechanical wave starts when matter is disturbed. A source of energy is needed to disturb matter and start a mechanical wave.

Answer:

c. The truck with greater speed

Explanation:

Energy can be defined as the ability (capacity) to do work. The two (2) main types of energy are;

a. Gravitational potential energy (GPE): it is an energy possessed by an object or body due to its position above the earth.

b. Kinetic energy (KE): it is an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

[tex] K.E = \frac{1}{2}MV^{2}[/tex]

Where;

K.E represents kinetic energy measured in Joules.

M represents mass measured in kilograms.

V represents speed or velocity measured in metres per seconds square.

From the above formula, we can deduce that the kinetic energy of an object is directly proportional to the square of the value of its velocity or speed.

Hence, the truck with greater speed would have a greater amount of kinetic energy.

Answer:

The trucks will have the same kinetic energy.

Explanation:

Both of the trucks have the same mass, so they have the same kinetic energy. Hope this helps!

Answer:

White light.

Explanation:

Answer: 18 5.0 012

Explanation:

Static

Type of electron movement: random

path of electrons: unpredictable

duration flow: short

usefulness: stattionery objects

Current

Type of electron movement: steady in a given direction

Path of electrons: can be directed

Duration of flow: long

Usefulness: can power appliances

Note: This is a few notes I know about it sorry if its not what you are looking for This is all the info I have