An incident light ray hits a plane surface at 20 degrees (hint: remember where the angle is measured from). What is the angle between the incident and reflected rays? So is it 20 degrees or 40 degrees

Answer:

Convergent boundaries. When two plates collide and one is pushed over the other, forming a mountain.

Answer:

Hello your question lacks some information but i will give you a more General answer about differences in temperature of bodies on same latitude

answer : Continentality is the reason

Explanation:

Sensors or objects on the same latitude are supposed to have the same air temperatures but in some cases this might not be true. This is because of the proximity of the bodies to an Ocean or any water body.  

Areas close to water bodies experience modest temperatures even if they are on the same latitude with Areas experiencing  harsh temperatures. This effect is termed as Continentality

Answer:

x10 - 6 +(8+6-4)= 10

10m -10x y0

Answer:

           h = h₀/2,  the liquid column rises half the height

Explanation:

Pressure is defined as force per area,  

         P = F / A

in a barometer the force is the weights of the liquid column

         F = W = mg

         P = m g/A

if we use the definition of density

         ρ = [tex]\frac{m}{A h}[/tex]

         [tex]\frac{m}{A}[/tex] = ρ h

we substitute

         P = ρ g h

Let's use the index o for the mercury

         P₀ = ρ₀ g h₀

when we change the liquid for another with

          ρ = 2ρ₀

the pressure expression is

         P = 2ρ₀ g h

in the problem they indicate that the pressure is equal to the initial P = P₀

we substitute

           ρ₀ g h₀ = 2ρ₀ g h

           h₀ = 2h

           h = h₀/2

the liquid column rises half the height

Answer:

Sound and light are similar in that both are forms of energy that travel in waves. They both have properties of wavelength, freqency and amplitude. Here are some differences: Sound can only travel through a medium (substance) while light can travel through empty space.

Answer:

Sound and light are similar in that both are forms of energy that travel in waves. They both have properties of wavelength, freqency and amplitude. Here are some differences: Sound can only travel through a medium (substance) while light can travel through empty space.

Explanation:

Hope this helped Mark BRAINLEST

Answer:

The time is 16.667 seconds

Explanation:

Velocity ​​is a physical quantity that expresses the relationship between the space traveled by an object and the time used for it. Then, the average velocity results from the quotient between the change in position and the time taken to effect said change:

[tex]velocity=\frac{distance}{time}[/tex]

In this case:

Replacing:

[tex]3 \frac{m}{s} =\frac{50 m}{time}[/tex]

Solving:

[tex]time =\frac{50 m}{3 \frac{m}{s}}[/tex]

time= 16.667 seconds

The time is 16.667 seconds

Grant sprints 50 m o the right with an average velocity of 3.0 m/s.

How many seconds did Grant sprint?

Answer: 16.667

Answer:

La temperatura final es de aproximadamente 159,94°C

Explanation:

Los parámetros dados son;

La masa de la llave española de acero, m₁ = 200 gramos

La temperatura de la llave, T₁ = 550 ° C

La masa del recipiente de aluminio que contiene agua, m₂ = 250 gramos

La masa del agua en el recipiente de aluminio, m₃ = 220 gramos

La capacidad calorífica específica del hierro, [tex]C_{planchar}[/tex], c₁ = 0.499 ca/(g·°C)

La capacidad calorífica específica del aluminio, [tex]C_{Aluminio}[/tex], c₂ = 0.217 cal/(g·°C)

La capacidad calorífica específica del agua, [tex]C_{Agua}[/tex], c₃= 1 cal/(g·°C)

En equilibrio térmico, tenemos;

m₁·c₁·(T₁ - T) = m₂·c₂·(T -T₂) + m₃·c₃·(T - T₂)

Conectando los valores, da;

200 × 0.499 × (550 - T) = 250 × 0.217 × (T -18) + 220 × 1  × (T - 18)

Simplificando, usando una calculadora gráfica, obtenemos;

[tex]\dfrac{274450-499\cdot T}{5} = \dfrac{1097 \cdot T-19746}{4}[/tex]

De también encontramos 'T' al convertirlo en el tema de la ecuación anterior aún usando una calculadora gráfica;

T = 1196530/7481 °C ≈ 159.94°C

La temperatura final,T ≈ 159.94°C.

The final temperature, when thermal equilibrium is reached is 144°C.

Given the following data:

To determine the final temperature, when thermal equilibrium is reached:

Mathematically, heat capacity or quantity of heat is given by the formula;

[tex]Q = mc\theta[/tex]

Where:

At an equilibrium state, the quantity of heat for the three substances is given by the equation:

[tex]M_kC_k(\theta_2 - \theta_1) = M_aC_a(\theta_2 - \theta_1) + M_wC_w(\theta_2 - \theta_1)\\\\200 \times 0.499 \times (500 - \theta_2) = 250 \times 0.217 \times (\theta_2 - 18) + 220 \times 1 \times (\theta_2 - 18)\\\\99.8(500 - \theta_2) = 54.25(\theta_2 - 18) + 220(\theta_2 - 18)\\\\49900 -99.8\theta_2 = 54.25\theta_2 - 976.5 + 220\theta_2 - 3960\\\\220\theta_2 + 99.8\theta_2 + 54.25\theta_2 = 49900 + 3960\\\\374.05\theta_2 = 53860\\\\\theta_2 = \frac{53860}{374.05}[/tex]

Final temperature, [tex]\theta_2[/tex] = 143.99 ≈ 144°C

Read more: https://brainly.com/question/18877825

(60 W) x (336 hrs) = 20,160 W-hr

That's 20.16 KWh .

Answer:

120 mph is 193.1 km/hrs.

distance is s = vt.

193.1*3.5 = 675.85 km

Answer:

420 miles

Explanation:

Time: 3.5 hrs

Velocity: 120 miles/hr

Now Distance=  Speed × Time  

Distance = 3.5 × 120 = 420 miles

Answer:

It is observed that when a compass is brought near a current carrying conductor the needle of compass gets deflected because of flow of electricity. This shows that electric current produces a magnetic effect.

Answer:

A) so the conditions for the expirament don’t affect the outcome

b) to make sure the results are conclusive and accurate

Explanation:

Answer:

[tex]\boxed {\boxed {\sf D. \ 6.02*10^{23} \ atoms}}[/tex]

Explanation:

One mole of a substance contains the same amount of representative particles. These particles can be atoms, molecules, ions, or formula units. In this case, the particles are atoms of titanium.

Regardless of the particles, there will always be 6.02*10²³ (also known as Avogadro's Number) particles in one mole of a substance.

Therefore, the best answer for 1 mole of titanium is D. 6.02*10²³ atoms.

Answer:

D) 6.02 x 1023

Explanation:

A.P.E.X

Answer:

Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. It is the basic force responsible for such effects as the action of electric motors and the attraction of magnets for iron. Electric forces exist among stationary electric charges; both electric and magnetic forces exist among moving electric charges. The magnetic force between two moving charges may be described as the effect exerted upon either charge by a magnetic field created by the other.

Answer: You do not deserve help, You dont help other people you only use them for points so...do not ask for help from us now

Explanation:

D

Explanation

Given,

Distance covered in 1 lap = 400m

= Distance covered in 2 laps = 400 × 2

=800m

If Jermaine runs 2 whole laps, she comes back to her starting point.

So the answer is 0m

Answer:

The pressure in a liquid is due to the weight of the column of water above. Since the particles in a liquid are tightly packed, this pressure acts in all directions. For example, the pressure acting on a dam at the bottom of a reservoir is greater than the pressure acting near the top.

Answer:

Fluid pressure can be caused by gravity, acceleration, or forces in a closed container. Since a fluid has no definite shape, its pressure applies in all directions.

Explanation:

Answer:

B on EDGE

Explanation:

Answer:

A. 13.3

Explanation:

First, we find the velocity of the electron in meters/sec, as follows:

[tex]v = \frac{d}{t}\\[/tex]

v = velocity of electron = ?

d = distance between plates = 2 cm = 0.02 m

t = time elapsed = 1.5 x 10⁻⁸ s

Therefore, using these values in the equation, we get:

[tex]v = \frac{0.02\ m}{1.5\ x\ 10^{-8}\ s}\\\\v = 1333333.33\ m/s[/tex]

Now, we convert this to million m/s:

[tex]v = (1333333.33\ m/s)\frac{1\ million\ m}{100000\ m}\\\\v =13.3\ million\ m/s[/tex]

Therefore, the correct answer is:

A. 13.3

True im not 100% sure but I tried.

Answer:

206

Explanation:

The axial skeleton, comprising the spine, chest and head, contains 80 bones. The appendicular skeleton, comprising the arms and legs, including the shoulder and pelvic girdles, contains 126 bones, bringing the total for the entire skeleton to 206 bones.

A fully grown adult features 26 bones in the spine, whereas a child can have 34.

Answer:

The human body is made up of 206 bones

Answer:

c because you see with your eyes and c rhymes with eyes

Answer:

Hope this helps you out if you could please leave 5 stars or brainiest thank you

Answer:

cola forms so slowly that we could use up the supply that exists now

Answer: c and d

Explanation:

Answer:

True

Explanation:

This is true because in an energy flow, the primary producers such as plants produce their own foods by using energy from the sun. These primary producers are consumed by primary consumers such as rabbits for food, while secondary consumers such as snakes would consume the primary consumers.

By so doing, energy flows from one trophic level to the other.

Answer:Assuming the two ropes are knotted onto the same point of the wagon, the net force is computed of the sum of the two stated.The westward force is Fw = (-30,0); then the northeastward force is Fne = (50*cos(30°),50*sin(30°)).Adding the two is just adding each part, so the resulting force is Fnet = (-30+50*cos(30°),50*sin(30°)).  

Going more than that, the magnitude uses the Pythagorean formula:so √[(-30+50*cos(30°))²+(50*sin(30°))²] which is about 28.32N.  

Explanation: justttt understanddd myy ansswerr hehezz

Answer:

La rapidez media es 25 m/s en ambos casos.

Explanation:

Podemos definir como rapidez media al cociente entre la distancia total recorrida y el tiempo que se tardó en recorrer dicha distancia.

Así tenemos:

Rapidez media = Distancia/tiempo.

Entonces si el guepardo recorre 100m en 4 segundos, su rapidez media es:

Rapidez media = 100m/4s = 25 m/s

En el caso de que el guepardo recorre 50 metros en 2 segundos, su rapidez media será:

rapidez media = 50m/2s = 25m/s

Es el mismo resultado, pues recorrió la mitad de distancia en la mitad de tiempo.

Answer:

E = 24000 N/C = 24 KN/C

Explanation:

The electric field experienced by a test charge is given by the following formula:

[tex]E = \frac{F}{q}\\\\[/tex]

where,

E = Electric Field = ?

F = Force of attraction = 3 x 10⁻⁶ N

q = Charge on piece of lint = 1.25 x 10⁻¹⁰ C

Therefore, using these values in the equation, we get:

[tex]E = \frac{3\ x\ 10^{-6}\ N}{1.25\ x\ ^{-10}\ C}\\\\[/tex]

E = 24000 N/C = 24 KN/C

Answer:

[tex]124.62\ \text{rad/s}[/tex]

[tex]3.71\ \text{m/s}[/tex]

[tex]1.23\ \text{km/s}^2[/tex]

[tex]20.28\ \text{m}[/tex]

Explanation:

r = Radius of disk = 7.9 cm

N = Number of revolution per minute = 1190 rev/minute

Angular speed is given by

[tex]\omega=N\dfrac{2\pi}{60}\\\Rightarrow \omega=1190\times \dfrac{2\pi}{60}\\\Rightarrow \omega=124.62\ \text{rad/s}[/tex]

The angular speed is [tex]124.62\ \text{rad/s}[/tex]

r = 2.98 cm

Tangential speed is given by

[tex]v=r\omega\\\Rightarrow v=2.98\times 10^{-2}\times 124.62\\\Rightarrow v=3.71\ \text{m/s}[/tex]

Tangential speed at the required point is [tex]3.71\ \text{m/s}[/tex]

Radial acceleration is given by

[tex]a=\omega^2r\\\Rightarrow a=124.62^2\times 7.9\times 10^{-2}\\\Rightarrow a=1226.88\approx 1.23\ \text{km/s}^2[/tex]

The radial acceleration is [tex]1.23\ \text{km/s}^2[/tex].

t = Time = 2.06 s

Distance traveled is given by

[tex]d=vt\\\Rightarrow d=\omega rt\\\Rightarrow d=124.62\times 7.9\times 10^{-2}\times 2.06\\\Rightarrow d=20.28\ \text{m}[/tex]

The total distance a point on the rim moves in the required time is [tex]20.28\ \text{m}[/tex].