What does stat mean

Answer:

1.43 s

Explanation:

The time it takes for the container to reach the ground is determined only by the vertical motion of the container, which is a free-fall motion, so a uniformly accelerated motion with a constant acceleration of g=9.8 m/s^2 towards the ground.

The vertical distance covered by an object in free fall is given by

[tex]S=ut + \frac{1}{2}at^2[/tex]

where

u = 0 is the initial vertical speed

t is the time

a= g = 9.8 m/s^2 is the acceleration

since u=0, it can be rewritten as

[tex]S=\frac{1}{2}gt^2[/tex]

And substituting S=10.0 m, we can solve for t, to find the duration of the fall:

[tex]t=\sqrt{\frac{2S}{g}}=\sqrt{\frac{2(10.0 m)}{9.8 m/s^2}}=1.43 s[/tex]

The angle of reflection is equal to the angle of incidence.

The answer is C.

Answer:

C. angle of reflection

Explanation:

As we know that as per law of reflection of light angle of incidence with respect to the normal must be equal to the angle of reflection with normal in other direction.

So we can say that

angle of incidence = angle of reflection

so here we can say that the correct answer would be

C. angle of reflection

so the light ray will reflect at the same angle as that of angle of incidence given in it

so it must be

[tex]\theta_i = \theta_r[/tex]

Answer:

A sound wave speeds up as it passes from air to water. A light wave slows down as it passes from air to water.

Explanation:

Sound waves are the type of mechanical waves, which are formed due to the vibrations of the particles of the medium. The sound waves are longitudinal in which particle moves opposite to the energy transport.

The characteristic of sound waves include:

The wavelength, period, frequency, and amplitude are the characteristics of the sound waves.

The sound waves will travel faster in the water as compared to air because the molecules in the water are tightly packed which resulted in the transmission of sound waves faster.

Thus, the sound waves will travel in the water faster than the air because water is denser, and sound waves travel faster.

To know more about sound waves, refer to the following link:

https://brainly.com/question/3004869

Answer:

A

Explanation:

Snell's law states:

n₁ sin θ₁ = n₂ sin θ₂

where n is the index of refraction and θ is the angle of incidence (relative to the normal).

The index of refraction of air is approximately 1.  So:

1 sin 30° = 1.52 sin θ

θ ≈ 19°

The angle of refracted ray with respect to normal is 19°.

It states that the ratio of sine of angle of incidence and angle of refraction is equal to the refractive index of second medium to the first medium.

sini/sinr =n₂/ n₁

Given the angle of incidence i = 30 degrees, refractive index of glass n₂=1.52, refractive index of air n₁ =1, then , angle of refraction is

1 x sin 30° = 1.52 x sin r

r ≈ 19°

Thus, the angle of refracted ray with respect to normal is 19°.

Learn more about Snell's law.

https://brainly.com/question/10112549

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Answer:

Explanation:

Ohm's law:

V = IR

Given V = 120 V and R = 15 Ω:

120 V = I (15 Ω)

I = 8 A

Final answer:

A school bus takes longer to stop than a small car because of Newton's Second Law of Motion; it has greater mass and momentum, needing more force and time for deceleration.

Explanation:

The question you've asked relates to why a school bus full of kids takes longer to stop than a small car with a single passenger. This is an example of Newton's Second Law of Motion, which states that force equals mass times acceleration (F=ma). In this case, the school bus has a much larger mass compared to the small car. When brakes are applied, both the school bus and the car exert a force to stop, but because of the larger mass, the force applied by the brakes must be greater for the bus to achieve the same acceleration (or deceleration in this case) as the car. Additionally, the momentum of the bus, which is the product of mass and velocity, is greater, so it requires more time to bring the bus to a stop compared to the car with less momentum.

Answer:

True

Explanation:

Power = work done/time

Answer:

Nothing goes to Kinetic Energy

Both-1, 2, 4

Potential Energy-3 and 5

Explanation:

Answer:

 Transverse waves

 Move perpendicular

 Frequency is directly related to speed

 Frequency is inversely related to wavelength

 Wavelength is directly related to speed

 Transfer energy

Explanation:

Electromagnetic waves consist of periodic oscillations of electric and magnetic fields. As all waves, they transfer energy, but not matter,

Electromagnetic waves are transverse waves, which means that they oscillate in a plane perpendicular to the direction of propagation of the wave. The speed, the wavelength and the frequency of electromagnetic waves are related by the following equation:

[tex]c=f\lambda[/tex]

where

c is the speed (speed of light, which is constant for electromagnetic waves travelling in a vacuum)

f is the frequency

[tex]\lambda[/tex] is the wavelength

From this equation we see that:

- The frequency is directly related to the speed

- The wavelength is directly related to the speed

- The frequency is inversely related to the speed

the correct answers are :

1: It is detected by a seismograph.

3: It is based on the size of seismic waves.

4: It is affected by the amount of fault movement.

Answer:

The correct choices are

It is detected by a seismograph.

It is based on the size of seismic waves.

It is affected by the amount of fault movement.

Explanation:

seismograph is an instrument which is used to determine the earthquakes and records them.

The size of seismic waves is a measure of how strong the earthquake is.

Answer:what you would do it 1.6*1.6/1.0=V (/=divied *=multiple) and then thats how you would fiqure out V wich V=2.56cm3

hope this helps

Answer:3H2O + light-c3h603+302

Explanation:

Answer: A) 3CO2

Explanation:

Answer:

C.) the valence shells of each elements atoms get smaller

Explanation:

I did the test and got it right

Answer:

Atoms of elements are closer to filling their valence shell with electrons.

Explanation: i did the test and got it correct

Answer:

Meteorology

Explanation:

Answer:

Explanation:

Climatology.

If anyone wants to study global warming and climate change he should study climatology in which all the phenomenon related to climate, weather and its impact on environment are studied. Global warming a great concern now a days and it impact our environment in negative manner. So this topic is also comes under climatology.

I think the answer is D.

Answer:

A or D

Explanation:

If the answer is A it would allow the horse to get through the water faster. If it is D they would have a faster chance of escaping unharmed by the predator that is after them

the answer is very clearly C.

a common example is scissors

Answer:

The correct option is: A machine is classified as a compound machine if it C. is made up of two or more simple machines that operate together.

Explanation:

Composite machines are mechanical devices that have been formed from two or more simpler machines which are connected in series. In this way, when one of these parts of the composite machine is activated, the rest work in a coordinated manner, being able to offer together a function that individually could not.

Composite machines have operators that work in coordination. These operators can be:

In short, the correct option is: A machine is classified as a compound machine if it C. is made up of two or more simple machines that operate together.

Answer:

Voltage

Explanation:

In a parallel circuit, electric current has more than one path to flow and the loads are parallel to each other.When one of the loads( bulb) is malfunctioning, current still flows in the other path to serve the remaining loads.The voltage is the same in every part of a parallel circuit.This is because the difference in potential at the start of the circuit equals that at the end of the circuit.

polar covalent, it is what happens when there is unequal bond between two atoms, where one has a slightly negative charge and one has a slightly positive charge.

Have A Great Day!

The answer is a, 343

In dry air at 20 °C (68 °F), the speed of sound is 343 metres per second (about 767 mph, 1234 km/h or 1,125 ft/s).

The answer is 343 m/s.

Answer:

Explanation:

I wonder what level of physics you are taking? If this is a beginning course (which I'm going to assume) then the KE is

KE = 1/2 m v^2

KE = 1/2 * 2kg * (10 m/s)^2

KE = 100 Joules.

If you are in an upper level course and need to take into account the rotational motion, leave a note.

I think it is graph (b). You can visually see the data on a graph.

Answer:

Paleobotany is the study of plant fossils

Explanation:

Answer:

The correct answer is plant fossils.

Explanation:

Paleobotany is a science shared by botany and paleontology, which studies the remains of plants that lived in the past. It also includes the use of the remains for the reconstruction of ancient environments and the history of life. It includes the study of fossils of terrestrial plants and marine algae.

Have a nice day!

Answer:

[tex]2.99\cdot 10^{11}C[/tex]

Explanation:

The mass of one electron is

[tex]m_e = 9.11\cdot 10^{-31}kg[/tex]

So the number of electrons contained in M=1.7 kg of mass is

[tex]N=\frac{M}{m_e}=\frac{1.7 kg}{9.11\cdot 10^{-31}kg}=1.87\cdot 10^{30}[/tex]

The charge of one electron is

[tex]e=1.60\cdot 10^{-19} C[/tex]

So, the total charge of these electrons is equal to the charge of one electron times the number of electrons:

[tex]Q=Ne=(1.87\cdot 10^{30})(1.6\cdot 10^{-19}C)=2.99\cdot 10^{11}C[/tex]

Final answer:

The total electric charge of 1.7 kg of electrons is 1.87 × 10^50 electrons.

Explanation:

The total electric charge of 1.7 kg of electrons can be calculated using the formula:

Total charge = Number of electrons * Charge per electron

Given that the charge per electron is e = 1.60 × 10^-19 C, we can calculate the number of electrons:

Number of electrons = Total charge / Charge per electron

Plugging in the values, we get:

Number of electrons = 1.7 kg / (9.11 × 10^-31 C)

Simplifying this expression gives us:

Number of electrons = 1.87 × 10^50 electrons

They are wide because they need to provide support for the rest of the building. The wider the foundation, the stronger the overall structure is going to be. If the base was not wide, and you continued to put weight on it then it would eventually collapse. Think of it as legos

" The correct answer is that walls give additional support to the building's structure, which helps to distribute the weight of the building over a larger area, thereby reducing the pressure on the soil beneath.

Foundations of buildings are constructed to be wide for several reasons related to the principles of physics and soil mechanics. The primary reason is to increase the surface area over which the weight of the building is distributed. By spreading the load over a larger area, the pressure exerted on the ground is reduced, which helps to prevent the foundation from sinking into the soil. This is particularly important in areas where the soil has a low bearing capacity.

In addition to the wide foundation, walls play a crucial role in supporting the structure. Walls are built on top of the foundation and extend upward to support the floors and roof. They serve multiple functions:

1. Load Bearing: Walls made of bricks, concrete, or other strong materials can bear the load of the floors and roof, transferring this weight to the foundation and then to the ground.

2. Lateral Support: Walls provide lateral support to resist forces acting horizontally, such as wind loads, earthquake forces, and the pressure of adjacent soil when the ground is sloped. This helps to stabilize the building and prevent it from overturning or sliding.

3. Structural Integrity: Walls contribute to the overall rigidity and stability of the building's structure. They help to keep the building square and plumb, ensuring that the windows, doors, and other components function correctly.

4. Insulation and Protection: Walls also provide thermal insulation and protection from the elements, ensuring a comfortable indoor environment and protecting the interior from weather-related damage.

5. Space Definition: Walls define the interior spaces of a building, creating rooms and corridors, and they also provide privacy and security.

In summary, while the foundation serves as the base that supports the entire structure by distributing its weight over a wide area, the walls are essential for providing additional support, stability, and functionality to the building. They work together to ensure the building's safety and longevity."

Answer:

reflection

Explanation:

Objects that do not produce their own light, reflect light when the light is shone on them.

hope this helps :)

Answer:

C) Acceleration 1 - constant acceleration. Acceleration 2 - varied acceleration.

Explanation:

In a velocity-time graph, the acceleration corresponds to the slope of the curve.

In fact, acceleration is defined as the ratio between the change in velocity and the time interval:

[tex]a=\frac{\Delta v}{\Delta t}[/tex]

However, we see that in a velocity-time graph, [tex]\Delta v[/tex] corresponds to the increment in the y-variable ([tex]\Delta y[/tex]), while [tex]\Delta t[/tex] corresponds to the increment in the x-variable ([tex]\Delta x[/tex]). Therefore, acceleration can also be written as

[tex]a=\frac{\Delta y}{\Delta x}[/tex]

which is exactly the definition of slope of the curve.

Now we notice that:

- For object 1, the slope is constant: this means that the acceleration is constant

- For object 2, the slope varies: this means that the acceleration varies as well

Answer:C) Acceleration 1 - constant acceleration. Acceleration 2 - varied acceleration.

Explanation:

The lines on the graph are best described by the following: Acceleration 1 - constant acceleration. Acceleration 2 - varied acceleration. Acceleration 1 DOES show positive acceleration, but since the slope of the line does not vary, the acceleration is constant. Acceleration B has a varied slope, and therefore, a varied acceleration. It does happen to be positive and negative. For zero acceleration, the slope slope would be zero and the line horizontal.

The object will not move, since both forces have the same magnitude although not the same direction.

This is due to Newton’s first law of motion, that estates:

If a body is in equilibrium the sum of all the forces acting on it is equal to zero:

[tex]F_{total}=29N-29N=0[/tex]  

According to this law, an object in rest can be in equilibrium (net force equals to zero), and a moving object can also be in equilibrium, as long as it keeps a constant velocity.

Force = mass*acceleration

Force and acceleration are dependent on one another, and therefore, the force does affect the acceleration of the car.

Answer:Any force can affect the acceleration of a car so yes.

Explanation:

Any object with a temperature above absolute zero emits light at  all wavelengths. If the object is perfectly black (so it doesn't reflect any  light), then the light that comes from it is called blackbody radiation.

The energy of blackbody radiation is not shared evenly by all  wavelengths of light. The spectrum of blackbody radiation (below) shows that  some wavelengths get more energy than others. Three spectra are shown, for three  different temperatures. (One of the curves is for the surface temperature of the  Sun, 5770 K.)