If you know these plz help me out:)

Answer:

See explanation

Explanation:

Nuclear energy refers to energy trapped in the nucleus of atoms. Nuclear energy holds the greatest promise for large scale electricity generation. For instance, the amount of energy released by a given mass of uranium is 2.5 million times the energy released by combustion of an equal mass of carbon.One gram of uranium produces the same energy as 1 ton of coal, 17000 cubic feet of natural gas, 5000 pounds of wood and 149 gallons of oil.

Nuclear energy does not pollute the atmosphere as fossil fuels do. However, the challenges of effective control of the nuclear reactor and disposal of radioactive waste still remain a serious concern.

However, exploitation of nuclear energy as a source of electricity remain expensive and it is not quite easy to set up a nuclear power plant. Not many countries can afford to pay for the services of experts who operate nuclear energy plants talk more of providing the required equipment.

Answer:

No, because objects have the same velocity only if they are moving at the same speed and in the same direction. Objects moving at different speeds, in different directions, or both have different velocities. The average velocity of an object moving in a constant direction is calculated with the formula: velocity = distance/time.

Explanation:

Look at my comment if you are still confused. I think this article will help with acceleration and velocity.

Answer:

1. The horizontal component of the velocity is approximately 271.89 m/s

The vertical component of the velocity is approximately 126.79 m/s

2. The time the bullet spends in the air is approximately 25.85 seconds

3. The maximum height reached by the bullet is approximately 819.35 meters

4. The horizontal distance is approximately 7028.36 meters

Explanation:

The initial velocity of the bullet = 300 m/s

The angle at which the bullet was fired, θ = 25° from the horizontal

1. The horizontal component of the velocity vₓ = The component of the velocity in the x-direction

vₓ = v × cos(θ)

Substituting gives;

vₓ = 300 × cos(25°) ≈ 271.89 m/s

The vertical component of the velocity [tex]u_y[/tex] = The component of the velocity in the y-direction

[tex]v_y[/tex] = v × sin(θ)

Substituting gives;

[tex]u_y[/tex] = 300 × sin(25°) ≈ 126.79 m/s

2. The time the bullet takes to maximum height, t = 1/2 × The time the bullet spends in the air

The following is the relevant kinematic equation for the vertical motion of the bullet;

v = u - g × t

Where;

[tex]v_y[/tex] = The final velocity vertical velocity = (0 at maximum height)

[tex]u_y[/tex] = The initial vertical velocity ≈ 126.79 m/s

g = The acceleration due to gravity = 9.81 m/s²

t = The time in flight of the bullet

Substituting gives;

0 = 126.79 - 9.81 × t

t ≈ 126.79/9.81 ≈ 12.924 s

The time the bullet spends in the air = 2 × The time the bullet takes to maximum height

∴ The time the bullet spends in the air ≈ 2 × 12.924 ≈ 25.85

The time the bullet spends in the air ≈ 25.85 seconds

3. The maximum height reached is given from the following kinematic equation;

[tex]u_y[/tex]² = 2 × g × h

Where;

h = The maximum height reached by the bullet

∴ h = [tex]u_y[/tex]²/(2 × g)

h = 126.79²/(2 × 9.81) = 819.35

The maximum height reached by the bullet = h = 819.35 meters

4. The horizontal distance travelled by the bullet = Horizontal component of the velocity of the bullet × The time the bullet spends in the air

∴ The horizontal distance travelled by the bullet = 271.89 × 25.85 ≈ 7028.36

The horizontal distance travelled by the bullet ≈ 7028.36 meters.

Answer:

1. 2.5s

Explanation:

1. For time, divide Distance / speed

25m / 10

=2.5s

I think your answer is b.

Answer:

where is it??

Explanation:

Answer:

The bar magnet appears to be made up of smaller magnets, each with a red end and a white end.

Explanation:

Edmentum Answer

Answer:

The velocity of the seeds relative to the ground as they travel through the air is 2.6 meters per second.

Explanation:

From Physics, we know that the absolute velocity of the seeds ([tex]v_{S}[/tex]) is the sum of the absolute velocity of the farmer ([tex]v_{F}[/tex]) and the velocity of the seeds relative to the farmer ([tex]v_{S/F}[/tex]), all measured in meters per second. That is:

[tex]v_{S} = v_{F}+v_{S/F}[/tex] (1)

If we know that [tex]v_{F} = 0.5\,\frac{m}{s}[/tex] and [tex]v_{S/F} = 2.1\,\frac{m}{s}[/tex], then the velocity of the seeds relative to the ground is:

[tex]v_{S} =0.5\,\frac{m}{s} + 2.1\,\frac{m}{s}[/tex]

[tex]v_{S} = 2.6\,\frac{m}{s}[/tex]

The velocity of the seeds relative to the ground as they travel through the air is 2.6 meters per second.

Answer:

1.

A:Time (minutes)

B: Temp(degrees c)

2. Downward trend (temperature goes down as time goes on )

3.

A: not sure

B: temperature

4.the temperature is going down

5. Closes off any open airways

Answer:

804 N

Explanation:

We are given;

Mass; m = 950 kg

Initial velocity; u = 0 m/s

Final velocity; v = 15 m/s

Time; t = 2.3 s

Engine force; F_e = 7000 N

From Newton's first equation of motion;

v = u + at

15 = 0 + 2.3a

a = 15/2.3

a = 6.5217 m/s²

From Newton's second law of motion and since friction always opposes motion, we have;

F_e - F_f = ma

Where F_f is frictional force.

Thus;

F_f = F_e - ma

F_f = 7000 - (950 × 6.5217)

F_f ≈ 804 N

Answer:

[tex]\boxed{\text{\sf \Large 50 N}}[/tex]

Explanation:

Sum of the vertical forces is zero

F₁ + F₂ - Z = 0

Z is negative since Z acts in the opposite direction from F₁ and F₂

30 + 20 - Z = 0

Z = 50

Answer:

6 m/s.

Explanation:

From the question given above, the following data were obtained:

Initial velocity (u) = 4 m/s

Acceleration (a) = 2 m/s²

Distance (s) = 5 m

Final velocity (v) =?

The final velocity of the object can obtained as shown below:

v² = u² + 2as

v² = 4² + (2 × 2 × 5)

v² = 16 + 20

v² = 36

Take the square root of both side.

v = √36

v = 6 m/s

Therefore, the final speed of the object is 6 m/s.

The final speed of the object as it accelerates uniformly in the direction of its motion is 6m/s.

Given the data in the question;

Final speed; [tex]v = \ ?[/tex]

To determine the final speed of the object, we use the third equation of motion:

[tex]v^2 = u^2 + 2as[/tex]

Where v is the final speed or velocity, u is the initial velocity, a is the acceleration and s is the distance covered.

We substitute our given values into the equation

[tex]v^2 = [(4.0m/s)^2] + [ 2\ *\ 2.0m/s^2\ *\ 5m ]\\\\v^2 = 16m^2/s^2 + 20m^2/s^2\\\\v^2 = 36m^2/s^2\\\\v = \sqrt{36m^2/s^2} \\\\v = 6m/s[/tex]

Therefore, the final speed of the object as it accelerates uniformly in the direction of its motion is 6m/s.

Learn more: https://brainly.com/question/25407150

Answer:

The telescope is adjusted to receive parallel rays by turning it towards a distant object and adjusting the distance between the objective lens and the eyepiece to get a clear image on the cross wire.

The telescope is turned towards a far-off object, and the distance between the objective lens and the eyepiece is adjusted to produce a clear image on the cross wire.

A telescope is a tool for creating enlarged views of far-off things. The telescope is without a doubt the most significant research tool in astronomy. It offers a way to gather and examine radiation coming from astronomical objects, even those at the edge of the cosmos.

When Galileo used the telescope to investigate alien bodies in the early 17th century, he revolutionized astronomy.

Magnification tools had never been employed for this purpose before until that point. The distance between the objective lens and the eyepiece is adjusted to provide a crisp image on the cross wire as the telescope is pointed towards a distant object.

Learn more about telescope here:

https://brainly.com/question/556195

#SPJ2

Answer:

The customary system is the system of measurement that is primarily used in the U.S. units in this system include the inch, foot, mile, pound, and also the cup.

The metric system is the system of measurement primarily used in science and in countries outside of the U.S. Units in this system include the meter, liter, and also gram.

Explanation:

I hope this works. :DD

I prefer using Customary system because its already in our country and easier for use because its easier for us to learn

Answer:

1.92 the aver...

Explanation:

Answer:

Its 2 miles every second

Explanation:

Answer:

Atoms are the smallest point of matter they are composed of protons nutrons and electrons protons and nutrons are located in the nucleus electrons are in the electron cloud the charge of protons is a positive charge electrons are negative and nutrons are nutrul.

Answer: A

Explanation:

Answer:

True

Explanation:

Nutrition and exercise are critical for improving body composition.

Answer:

The centripetal acceleration acting on the ball is 10.24 m/s²

Explanation:

Given;

mass of the ball, m = 3 kg

radius of the swing arm, r = 1 m

speed of the ball, v = 3.2 m/s

centripetal acceleration is given by;

a = v² / r

a = (3.2)² / 1

a = 10.24 m/s²

Therefore, the centripetal acceleration acting on the ball is 10.24 m/s²

Answer:

food

Explanation:

its is a fast food option or homemade option of ground beef made into a patty and put on buns

Answer:

[tex]v_x=10.72\ m/s[/tex]

Explanation:

Projectile Motion

It's the type of motion that experiences an object launched near the Earth's surface and moves along a curved path exclusively under the action of gravity.

Being vo the initial speed of the object, and θ the initial launch angle, the two components of the velocity are given by:

[tex]v_x=v_o\cos\theta[/tex]

[tex]v_y=v_o\sin\theta-g.t[/tex]

The soccer ball is kicked at an angle of 40° with an initial speed of vo=14 m/s.

The horizontal component is:

[tex]v_x=14\cos 40^\circ[/tex]

Calculating:

[tex]v_x=14\cdot 0.766[/tex]

[tex]\mathbf{v_x=10.72\ m/s}[/tex]

Answer:

0.7kg

Explanation:

Given parameters:

Force on the rock  = 8.68N

Acceleration  = 12.4m/s²

Unknown:

Mass of the rock  = ?

Solution:

From newton's second law of motion, the net force on a body is the product of mass and acceleration

  Net force  = mass x acceleration

Now insert the parameters and solve the problem;

         8.68  = mass x 12.4

          mass = [tex]\frac{8.68}{12.4}[/tex]  = 0.7kg

Answer:

I believe the answer is A, it is to the west as the right ascension is only east and west

Explanation:

When i took the quiz, I put east and had gotten it incorrect.

Answer:

False

Explanation:

The softball is bigger, but it is lighter, which means it has a better chance of getting farther way faster with a lighter amount of force. On the other hand, the golfball is heavier, which would take more force to move it a certain distance.

Answer: false

Explanation:

• Defines what the “natural” states of motion are, either at rest and constant

velocity. In essence, the first law sets up the basis to define what accelerated

motion is, which we address with Newton’s 2nd law.

• Defines the type of coordinate systems so that Newton’s laws are valid. These

coordinate systems are called inertial reference frames.

Answer:

chemical change

Explanation:

Answer:

5.765

Explanation:

Answer:

5.765

Explanation:

Answer:

the deficiency is the target audience of the most important and important the target audience of this advertisement is to provide the target of the best of all time and k to detect and k a solution please send emote and

Answer:

Explanation:

Traumatic fractures (also called acute fractures) are caused by a direct blow or impact, such as seriously stubbing your toe. Traumatic fractures can be displaced or nondisplaced. If the fracture is displaced, the bone is broken in such a way that it has changed in position (malpositioned).

Answer:

Traumatic fractures can be displaced or nondisplaced.

Explanation:

Answer:

b

Explanation:

Answer:

Reside in the state she represents.

Explanation:

Every position in government needs at least one qualification. she needs to reside in the state she represents because U.S Senators represent their state witht he views and stuff.

Hope this helps :)

Answer:

C. 6,000

Explanation: