5 renewable energy resources
i have nuclear, solar, wind
what am i missin?

Lake Mead, the reservoir above the Hoover Dam, has a surface area of approximately 640 km2, so here is the gravitational potential energy of the top 1 meter of water in Lake Mead: 1.42 x \(10^1^7\) J.

Here the calculation for the gravitational potential energy is given below,  

PE = m × g × h

Here,  m = density of water × volume of water                    

m= 1000 kg/\(m^3\) × 640 \(km^2\)× 1 m

m= 640,000,000,000 kg

PE = 640,000,000,000 kg * 9.8 m/\(s^2\) * 220 m

PE= 1.42 x\(10^1^7\) J

Hence, Lake Mead, the reservoir above the Hoover Dam, has a surface area of approximately 640 km2, so here is the gravitational potential energy of the top 1 meter of water in Lake Mead: 1.42 x \(10^1^7\) J.

Learn more about the gravitational potential energy here.

https://brainly.com/question/19768887

#SPJ9

When Elena returns to Earth, she will be 17.5 years/ 18 year option (4)

According to special relativity, time dilation occurs for a moving observer relative to a stationary observer. In this scenario, Elena is the moving observer while Olga is stationary on Earth. We need to find out the time experienced by Elena during her journey, which is different from the time experienced by Olga.

From Elena's perspective, the distance travelled is given by:

d = v*t = (0.6c)5 years = 0.6299792458 m/s * 5 years ≈ 895,800,000 km

Since Elena travels at a high velocity, time dilation occurs. The time experienced by Elena is given by:

t' = t / sqrt(1 - (v/c)^2)

where t is the time experienced by Olga on Earth, v is the velocity of Elena relative to Olga, and c is the speed of light.

For the outbound journey, we have:

t' = 5 / sqrt(1 - (0.6c/c)^2) = 5 / 0.8 = 6.25 years

For the return journey, the time experienced by Elena is also 6.25 years. Thus, the total time experienced by Elena during her journey is:

t_total = 5 + 6.25 + 6.25 = 17.5 years

Learn more about the distance

https://brainly.com/question/15172156

#SPJ4

Answer:

High-speed rail in China is officially defined as "newly-built passenger-dedicated rail lines designed for electrical multiple unit (EMU) train sets traveling at not less than 250 km/h (155 mph) (including lines with reserved capacity for upgrade to the 250 km/h standard) on which initial service operate at not less ...

Answer:

The net strong force on each proton due to all the nucleons is stronger than the net repulsive force.

Explanation:

The strong nuclear force pulls together protons and neutrons in the nucleus. At very small distances only, such as those inside the nucleus, this strong force overcomes the electromagnetic force, and prevents the electrical repulsion of protons from blowing the nucleus apart.

Answer:3

Explanation:

Answer:

I had this awhile ago if I'm not mistaking its A

Answer:

D

Explanation:

LA FUERZA NETA ES LA FUERZA TOTAL DE EMPUJE MENOS EL PESO DEL

COHETE.

\(F_{y}\) = 700000 N(sen 90° - 20°) - 560000 N = 97785 N

The approximate vertical component of the net force that is propelling the rocket away from Earth is 112,000 N. Option B is correct.

The net force acting on the rocket is the sum of the thrust force and the weight of the rocket. The thrust force is pointing upwards at an angle of 20 degrees, and the weight of the rocket is pointing downwards. The thrust force is the force that is generated by the rocket engine. It is the force that propels the rocket upwards.

The weight of the rocket is the force of gravity acting on the rocket. It is the force that pulls the rocket downwards. The net force acting on the rocket is the sum of the thrust force and the weight of the rocket. If the net force is positive, the rocket will accelerate upwards. If the net force is negative, the rocket will accelerate downwards. If the net force is zero, the rocket will remain at rest.

net force = thrust force + weight

vertical component of net force = thrust force * cos(angle)

vertical component of net force = 700,000 N * cos(20 degrees) = 112,000 N. Option B is correct.

To know more about the Force, here

https://brainly.com/question/31895833

#SPJ2

Answer:

1) Rick should be taking and gathering the gas with his hand towards his face gently to get just a whiff.

2) These students are doing the complete opposite of what should properly be done. Andrew shouldn't be drinking any chemicals that don't belong in his body. Sarah shouldn't be throwing whatever chemicals into a mixture, this can cause a lot of possible danger. Rick shouldn't be directly smelling the gas which can also be harmful. Rick needs to be wearing gloves and smell the gas in a proper way. Sarah should wear goggles and pay attention to what she is mixing. Andrew should be wearing gloves and goggles and shouldn't be drinking the chemical.

"Ravenous" refers to being extremely hungry. This hunger could actually be literal. After going around all day without eating, you can be famished. It can also be interpreted metaphorically to signify that you sincerely desire something. In this usage, the word ravenous refers to a strong desire. This is how Lyddie uses it.

Lyddie has never attended school regularly. She does not intend to be uninformed by doing this. She was always taking care of everyone at home, so she simply never got a chance. Too unstable was her mother.

Lyddie becomes acquainted with the other boarding house girls after starting her employment at the factory. When Betsy reads Oliver Twist to her, she particularly likes it.

To know more about the word 'Ravenous':

https://brainly.com/question/20602628

#SPJ4

To find the displacement of the plane during the third leg (as a vector), multiply the velocity of the plane times the time that it travels at that velocity:

The velocity of the plane with respect to the ground v_PG is equal to the velocity of the plane with respect to the wind v_PW, plus the velocity of the wind with respect to the ground v_WG:

The direction of the wind is θ=280°, and its speed is 35mph:

The direction of the plane with respect to the wind is θ=70, and the magnitude of its velocity is the same as in the 2nd leg, which is 560mph. Then:

Add both velocities to find the velocity of the plane with respect to the ground:

Since 20 minutes is 1/3 of an hour, then the displacement during the third leg of the trip, is:

1st question:

To find the position of the plane from the origin, add the displacement vector to the position before the 3rd leg started, which is:

Then, the final position after the third leg, is:

Then, the final location of the plane, is:

2nd question:

To find how far from the take-off point the plane is, calculate the magnitude of the vector r:

Therefore, the plane is 828 miles away from the take-off point.

3rd question:

To find the direction of the plane (the angle θ), remember that:

Therefore, the direction of the plane is 39° from the East toward the North.

Answer: The displacement of the object is 5 units to the right.

Explanation: 0 + 3 - 4 + 6 = 5

(left is in the negative direction, whereas right is in the positive.)

The speed of man when the length of his shadow on the building decreases when he is 4 m from the building will be 0.6 m/sec.

The change of distance with respect to time is defined as speed. Speed is a scalar quantity. It is a time-based component. Its unit is m/sec.

Distance from spot shines =  12 m away

Height of man,h=2 m tall

Speed of man +1.6 m/s,

Distance from the building = 4 m

Let the height of shadow= y,

CD=x

Height of man=2 m

Speed of man:

\(\rm \frac{dx}{dt} = 1.6 \ m/sec\)

As the triangle ABD and ECD are similar. The property of the similarity is found as;

\(\rm \frac{y}{2} = \frac{12}{x} \\\\ xy = 24\)

Differentiate the above question with respect to x;

\(\rm x \frac{dy}{dt}+y\frac{dx}{dt}=0 \\\\ x\frac{dy}{dt}= -y\frac{dx}{dt}\)

From the given conditions the man is 4 m from  the building the value of the remaining distance x is;

x=12-4

x=8 m

Speed of man:

\(\rm \frac{dx}{dt} = 1.6 \ m/sec\)

On putting all the values we get;

\(\rm \frac{y}{2} = \frac{12}{x} \\\\ xy = 24 \\\\ 8y = 24 \\\\ y= 3\)

The speed of man when the  length of his shadow on the building decreases when he is 4 m from the building;

\(\rm \frac{dy}{dt} = - \frac{3}{8} \times 1.6 \ m/sec \\\\\ \frac{dy}{dt} = 0.6 \ m/sec.\)

Hence the value of the speed for the given conditions willl be 0.6 m/sec.

To learn more about the velocity, refer to the link: https://brainly.com/question/862972.

#SPJ1

The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0. 724 w/m^2. The maximum value of the magnetic field in the wave will be B = 7.79 * \(10^{-8}\) T .

The Poynting vector, named after John Henry Poynting, is used in order to demonstrate the energy flux density of an EM field. Per definition, the Poynting vector is the result of the vector product of the field's electric and magnetic components

Pointing vector of electromagnetic wave =( 1 / mu0) * E B    

where

E = Electric field

B = Magnetic field

Average value of Pointing vector of electromagnetic wave

<S> = 0.724 = (1/2 mu0) EB            equation (1)

Also

E = c B

substituting the value of E in equation (1)

Pointing vector = (1/2 mu0) * (c B  * B)

0.724  =  (1/2 mu0) * c\(B^{2}\)

B = 7.79 * \(10^{-8}\) T

To learn more about electromagnetic wave here

https://brainly.com/question/12392559

#SPJ4

The force acting on the body can be determined using Newton's second law of motion,is -4N which states that Force (F) equals mass (m) multiplied by acceleration (a). First, we need to find the acceleration by differentiating the velocity equation with respect to time.

1. The given velocity equation is v = 3 - 2t.
2. To find the acceleration, differentiate the velocity equation with respect to time: a = dv/dt.
3. The derivative of 3 - 2t with respect to t is -2 (since the derivative of 3 is 0 and the derivative of -2t is -2).
4. Now, we have the acceleration: a = -2 m/s².
5. Using Newton's second law, F = m × a, where m = 2 kg and a = -2 m/s².
The force acting on the body is F = 2 kg × (-2 m/s²) = -4 N. Since the force has a negative sign, it acts in the opposite direction to the initial velocity.

The plane of the force is along the straight line where the body's motion occurs, with the force acting opposite to the velocity's direction.

For more information on Newton's second law kindly visit to

https://brainly.com/question/13447525

#SPJ11

Answer:

c

step by step explanation  

discharges let electric charge move freely

Answer:

definitely b

Explanation:

conductors let electric charges move freely whereas insulators and discharge don't

hope this helps

The radioactive decay equation for thorium-232 is  \(Th^{232} - > Ra^{238} + He^{4}\). The radioactive radiation activity of 10 g of thorium can be found by calculating the number of thorium-232 nuclei and then using the decay constant. The activity after 10 years can be determined using the radioactive decay law and the initial activity.

a) The radioactive decay equation for thorium-232 (\(Th^{232}\)) can be written as follows:

\(Th^{232} - > Ra^{238} + He^{4}\)

In this equation, thorium-232 decays into radium-228 by emitting an alpha particle (helium-4 nucleus). This process is a type of alpha decay.

b) To find the radioactive radiation activity of 10 g of thorium, we need to use the concept of activity. The activity (A) of a radioactive substance is defined as the rate at which radioactive decay occurs. It is measured in becquerels (Bq) or disintegrations per second.

To calculate the activity, we need to consider the number of radioactive nuclei present in the sample and the decay constant. The decay constant (λ) is related to the half-life (T1/2) of the isotope by the equation:

λ = ln(2) / T1/2

For thorium-232 with a half-life of 1.4 * \(10^{10}\) years, the decay constant is approximately λ = ln(2) / (1.4 * \(10^{10}\) years).

To find the number of radioactive nuclei (N) in 10 g of thorium, we can use Avogadro's number and the molar mass of thorium-232. The molar mass of thorium-232 is 232 g/mol.

N = (10 g) / (232 g/mol) * (6.022 * \(10^{23}\) nuclei/mol)

Now, we can calculate the activity (A) using the equation:

A = λ * N

c) To find the activity after 10 years, we use the radioactive decay law, which states that the activity of a radioactive substance decreases exponentially over time. The remaining activity (A_t) after a time t is given by:

A_t = A_0 * e^(-λ * t)

Where A_0 is the initial activity at t = 0.

To calculate the activity after 10 years, we substitute the appropriate values into the equation, including the initial activity calculated in part b, and evaluate A_t.

In summary, the radioactive decay equation for thorium-232 is  \(Th^{232} - > Ra^{238} + He^{4}\) To find the activity of 10 g of thorium, calculate the initial activity using the decay constant and the number of nuclei. Finally, to determine the activity after 10 years, use the radioactive decay law with the appropriate values.

Know more about radioactive decay here:

https://brainly.com/question/9932896

#SPJ8

Answer:

Vy = 4.65 m/s

Explanation:

Since, the airplane is descending at a rate of 480 km/h at an angle of 2° from horizontal. Therefore, its vertical component of velocity shall be given as follows:

Vy = V Sin θ

where,

Vy = Vertical Component of Velocity = ?

V = Velocity of Plane = (480 km/h)(1000 m/1 km)(1 h/3600 s) = 133.33 m/s

θ = Angle = 2°

Therefore,

Vy = (133.33 m/s)(Sin 2°)

Vy = 4.65 m/s

Answer:

See the explanation below.

Explanation:

Since the bus travels at a constant speed, we can use the following equation.

\(x=x_{o}+v*t\)

where:

x = final position [m]

xo = initial position = 0 (if the bus starts from some reference point)

v = constant velocity [m/s]

t = time [s]

Let's take some data as an example and then graph them.

v = 2 [m/s]

t = 2 [s]

That is, after two seconds, the final position will be:

\(x = 0 + 2*2\\x = 4 [m]\)

After the two seconds, the bus stops for about 2 seconds more. Then the bus will go with a velocity of 4 [m/s] for two seconds more.

So the total time is 6 [s].

Let's draw the x-t graph.

And the final offset must be calculated using the same equation.

\(x = x_{0}+v*t\\x = 4+4*(6-4)\\x = 4 +8\\x = 12 [m]\)

Answer:

i was doing this is it actually 0.6

Explanation:

;D

The acceleration of the skateboard from its initial velocity to the final velocity over the given time is 0.6m/s².

Motion is simply the change in position of an object over time.

From the First Equation of Motion;

v = u + at

Where v is final velocity, u is initial velocity, a is acceleration and t is time elapsed.

Given the data in the question;

To determine the acceleration of the skateboard, we substitute our given values into the expression above.

v = u + at

10m/s = 4m/s + ( a × 10s)

( a × 10s) = 10m/s - 4m/s

a × 10s = 6m/s

a = 6m/s ÷ 10s

a = 0.6m/s²

Therefore, the acceleration of the skateboard from its initial velocity to the final velocity over the given time is 0.6m/s².

Learn more about Equations of Motion here: brainly.com/question/18486505

Answer:

C. temperance, abolition, and women's access to education

Explanation:

When a sine wave is used to represent a sound wave, the crest corresponds to the maximum positive displacement from the equilibrium position.

In a sine wave, the crest refers to the highest point of the wave, while the trough refers to the lowest point of the wave. When a sine wave is used to represent a sound wave, the crest corresponds to the maximum positive displacement from the equilibrium position.

This means that the crest of a sound wave corresponds to the point of maximum compression in a sound wave. As the sound wave moves through a medium, it creates areas of compression and rarefaction. The crest of the sound wave corresponds to the point of maximum compression, where the particles of the medium are closest together.

The trough of the sound wave corresponds to the point of maximum rarefaction, where the particles of the medium are farthest apart. Together, the crest and trough of a sound wave represent the complete cycle of the wave, which corresponds to one complete vibration of the source.

To know more about sine wave, refer here:

https://brainly.com/question/28517936#

#SPJ11

The binding energy per nucleon of the 16O nucleus is 15.713375 amu.  

The binding energy of a nucleus is the energy required to separate the nucleus into its constituent protons and neutrons. The binding energy per nucleon (B.E. / N) is the binding energy of a nucleus divided by the number of nucleons in the nucleus.

The binding energy of a nucleus can be calculated using the following formula:

binding energy = mass of nucleus - (mass of nucleon) x (number of nucleons)

The mass of a nucleon can be found using the atomic mass of the element and the number of nucleons in the nucleus. The atomic mass of oxygen is 15.999 amu, and the number of nucleons in 16O is 8. Therefore, the mass of a nucleon is:

mass of nucleon = 15.999 amu / 2 = 7.9995 amu

The mass of the 16O nucleus can be calculated using the number of nucleons in the nucleus:

mass of nucleus = 16 x 7.9995 amu = 129.968 amu

The mass of the 16O nucleus is 129.968 amu.

The number of nucleons in the 16O nucleus is 8, so the binding energy of the 16O nucleus can be calculated as:

binding energy = mass of nucleus - (mass of nucleon) x (number of nucleons)

binding energy = 129.968 amu - (7.9995 amu) x 8

binding energy = 129.968 amu - 6.7096 amu

binding energy = 123.259 amu

Therefore, the binding energy of the 16O nucleus is 123.259 amu.

The binding energy per nucleon (B.E. / N) of the 16O nucleus can be calculated as:

B.E. / N = binding energy / number of nucleons

B.E. / N = 123.259 amu / 8

B.E. / N = 15.713375 amu

Therefore, the binding energy per nucleon of the 16O nucleus is 15.713375 amu.  

Learn more about binding energy

https://brainly.com/question/31817434

#SPJ4

The bottleneck event of the plants in an area results in secondary succession.

A bottleneck is an event that drastically reduces the population size of an organism. The bottleneck may be caused by various events, such as an environmental disaster, the hunting or habitat destruction that results in the deaths of organisms.

Secondary succession is a type of ecological succession in which plants and animals recolonize a habitat after a major disturbance such as a devastating flood, wildfire, landslide, lava flow, or human activity e.g., farming or road or building construction.

Learn more about succession here: https://brainly.com/question/1212975

Given that a horizontal force of at least 200 N is required to start moving an 800 N crate initially at rest on a horizontal floor. We are to find the coefficient of a static friction.To find the coefficient of static friction, we need to make use of the following formula.

When the crate is at rest, the force of static friction acting on the crate is maximum and is given by: f_s = μ_s × NwhereN is the normal force and is equal in magnitude to the weight of the crate.N = mgwhere m is the mass of the crate and g is the acceleration due to gravity.Substituting the value of N in the equation for the force of static friction, we get:f_s = μ_s × mg.

Given that a horizontal force of at least 200 N is required to start moving the crate, the force of static friction acting on the crate is equal to 200 N. Thus, we have:f_s = 200 N = μ_s × mgSubstituting the values of f_s, m, and g, we get:200 N = μ_s × 800 N × 9.81 m/s² Simplifying.

To know more about horizontal force visit :

https://brainly.com/question/32465594

#SPJ11

Answer:

he was a random act like you to be the first time I see is a great day and night to get a very happy to see you soon I hope that the world is not the same thing to say about this

a) When a box slides across a rough surface, eventually coming to rest, its kinetic energy is used during work done against frictional resistance force.

b) This work done is stored in the box as a potential energy. Thus the motion of the box is consistent with the Law of Conservation of Energy.

According to the work-energy theorem, the work done by the net force acting on a body equals the change in kinetic energy.

It can simply be written as:

Work done = initial kinetic energy - final kinetic energy

The work energy theorem equation is the one presented above.

Now when a box slides across a rough surface, eventually coming to rest, frictional force comes into play. This force is opposite to the direction of motion of the box. Hence, the kinetic energy of the box is used during work done against frictional resistance force and stored in the box as a potential energy and thus  Law of Conservation of Energy followed.

Learn more about energy here:

https://brainly.com/question/1932868

#SPJ2

The force required to just lift the Y end from the ground is 160 N, this force would not be sufficient to lift the X, as it is less than the reaction force at X.

Mass of the XY road, m = 40 kg

Weight of the road, W = 40×10 = 400 N

length of the rod, l = 5.0 m

Center of gravity is 2.0 m from the X end.

Let the vertical force required is P. Then taking the moment about x-axis.

P × 5 = 400 × 2

P = 160 N

Now, the downward force on X axis, = (400 × 3)/5 = 240 N

As downward force 240 N is more than the vertical force 160 N. So, it will not be sufficient to lift the X-end from the ground.

To know more about force, here

https://brainly.com/question/28875770

#SPJ4

First column (left side):

1 g

1600 mm

0.109 kg

0.250 km

14,000 m

1,000 mL

4.80 m

0.027 kg

When a compound dissolves in water to become an electrolyte, it must dissociate or break apart into ions.

These ions are then able to carry an electrical charge and conduct electricity in the aqueous solution. The greater the degree of dissociation, the stronger the electrolyte will be.

For example, when sodium chloride (NaCl) dissolves in water, it dissociates into sodium ions (Na+) and chloride ions (Cl-). These ions are then able to conduct electricity in the solution.

In contrast, a compound that does not dissociate into ions when dissolved in water is considered a nonelectrolyte and will not conduct electricity.

In summary, for a compound to be considered an electrolyte, it must dissociate into ions when dissolved in water, allowing it to conduct electricity in the aqueous solution.

To know more about electrolytes refer here:

https://brainly.com/question/29771118#

#SPJ11