I don’t know what this is

Answer:

phle follow karo yrr tab hee bat u ga

Answer:

no

Explanation:

ok

Answer:

Radiant energy, energy that is transferred by electromagnetic radiation, such as light, X-rays, gamma rays, and thermal radiation, which may be described in terms of either discrete packets of energy, called photons, or continuous electromagnetic waves.

Explanation:

Answer:

The probability is [tex]\dfrac{1}{2}[/tex]

Explanation:

Given that,

The energy at time t will yield the result [tex]h^2pi^2/2ml^2[/tex]

Suppose, At time t = 0 the normalized wave function for a particle of mass m in the one-dimensional infinite well is given by,

[tex]V(x)={0 0<x<L,\ \infty\ elsewhere[/tex]

The normalized wave function is,

[tex]\psi(x)=\dfrac{1+i}{2}\sqrt{\dfrac{2}{L}}\sin\dfrac{\pi x}{L}+\dfrac{1}{\sqrt{2}}\sqrt{\dfrac{2}{L}}\sin\dfrac{2\pi x}{L}\ 0<x<L, 0\ elsewhere[/tex]

What is the probability that a measurement of the energy at time t will yield the result h^2 pi^2/2mL^2?

We need to find the probability

Using given data

[tex]probability=(\dfrac{1+i}{2})(\dfrac{1-i}{2})[/tex]

[tex]probability=\dfrac{1-i^2}{4}[/tex]

[tex]probability=\dfrac{1+1}{4}[/tex]

[tex]probability=\dfrac{1}{2}[/tex]

Hence, The probability is [tex]\dfrac{1}{2}[/tex]

Answer:

50N

Explanation:

the net force is the addition of all forces in an object.

The frictional force is the opposite of the applied force, so:

Nf(net force)= 250(applied force)-200(frictional force)

so Nf=50N

Answer:

Reversing the polarity of the magnet

Explanation:

The action that will cause the induced current to decrease or remain constant is "reversing the polarity of the magnet"

To reverse the polarity, a battery and coil of copper can be used. Reversing the polarity of the magnet will also cause the induced current to reverse in direction. The polarity of the magnet actually determines the direction of the electromagnetic force.

Answer:

Explanation:

Gravity and normal

Answer:

Gravity and Normal

Answer:

23N

Explanation:

50-37 = 23

Answer: Kepler-452b

I think

hope it helps

Answer: You should not cheat during tests

Explanation: This is your professor.

Mr. Jorge Millan O.

Answer:

hfwf2f2f2ff2fefwgwfe

Answer:

Canada

Explanation:

Answer:

strontium has 50 neutrons

Answer:

the answer is 50 hope it helps =)

Explanation:

Answer: A/ average velocity=d/t

Explanation:

The average velocity is the displacement divided by change in time Thus it can be written as Ad/At. Hence, option b is correct.

Velocity of an object is the rate of change of  speed of that object. Mathematically it is the ratio of total displacement to the time taken to travel.

Velocity = Displacement/time.

Let a body travelling a distance within a time t have an initial velocity and then changes to a new final velocity then, the measure of net velocity is called its average velocity.

Suppose v1 be the initial velocity and v2 be the final velocity to move a distance d at a time t, then the average velocity is written as follows:

v2 - v1 = d/t.

Therefore, average velocity is written in terms of average distance travelled and change in time thus, option b is correct.

To find more about velocity, refer the link below:

https://brainly.com/question/18084516

#SPJ2

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex]a = \frac{f}{m} \\ [/tex]

where

f is the force

m is the mass

From the question

f = 8268 N

m = 1125 kg

We have

[tex]a = \frac{8268}{1125} \\ =7.3493 3333...[/tex]

We have the final answer as

Hope this helps you

Answer:

Follows are the solution to this question:

Explanation:

By checking the value in which we have calculated by performing its differentiation of [tex]\frac{a}{3}t^3+bt[/tex], the correct form of its integer value is calculating  with regard to t, that also provides as expected [tex]at^2+b = F(t)[/tex].

Answer:

it can be up to 15 ppl

ur team can be on a court

width

28 I believe

less then 10 seonds

Answer:

C m³/kgs²

Explanation:

From the question, we know that

F = Gm1m2/R², where

F = the Force of gravity in N.

G = gravitational constant, in Nm²/kg²

m1 = mass in kg

m2 = mass in kg

R = distance between the objects in m

Now, if we substitute the units of each in the formula, we have

N = G * (kg * kg) / m²

N = G (kg²) / m²

Nm² = G kg², remember, N itself is kgm/s², so we substitute for that

Kgm/s² * m² = G kg²

Kgm³/s² = G kg²

G = (kgm³/s²) / kg²

G = m³/kgs²

And that's our answer

Answer:

v=18.97 m/s

Explanation:

the equation for the above question is v²=u²+2as

Answer:

   y = - (½ g / v₀²)   x²

Explanation:

This is a projectile launch exercise where there is no acceleration on the x-axis so

        x = v₀ₓ t

        v₀ₓ = v₀ cos tea

        y = [tex]v_{oy}[/tex] t - ½ g t2

        v_{oy} = v₀ sin θ

as the sphere is thrown horizontally, the angle is tea = 0º, so the initial velocity remains

          v₀ₓ = v₀

           v_{oy} = 0

we substitute in our equations

          x = v₀ t

          y = - ½ g t²

we eliminate the time from these equations, we substitute the first in the second

      y = - ½ g (x / v₀)²

      y = - (½ g / v₀²)   x²

this is the equation of a parabola

Answer:

The ratio of the new potential energy to the potential energy before the insertion of the dielectric is 0.58

Explanation:

Given that,

Length of plates = 8 cm

Width = 5.52 cm

Distance = 1.99 cm

Dielectric constant = 2.6

Length = 4.4 cm

Potential = 0.8 V

We need to calculate the initial capacitance

Using formula of capacitance

[tex]C=\dfrac{\epsilon_{0}A}{d}[/tex]

Put the value into the formula

[tex]C=\dfrac{8.85\times10^{-12}\times8\times5.52\times10^{-4}}{1.99\times10^{-2}}[/tex]

[tex]C=1.96\times10^{-12}[/tex]

We need to calculate the final capacitance

Using formula of capacitance

[tex]C'=\dfrac{\epsilon_{0}A_{1}}{d}+\dfrac{k\epsilon_{0}A_{2}}{d}[/tex]

Put the value into the formula

[tex]C'=(\dfrac{8.85\times10^{-12}}{1.99\times10^{-2}})((4.4\times5.52)+(3.6\times5.52)2.6)\times10^{-4}[/tex]

[tex]C'=3.37\times10^{-12}[/tex]

We need to calculate the  ratio of the new potential energy to the potential energy before the insertion of the dielectric

Using formula of energy

[tex]\dfrac{E}{E'}=\dfrac{\dfrac{1}{2}CV^2}{\dfrac{1}{2}C'V^2}[/tex]

Put the value into the formula

[tex]\dfrac{E}{E'}=\dfrac{1.96\times10^{-12}}{3.37\times10^{-12}}[/tex]

[tex]\dfrac{E}{E'}=0.58[/tex]

Hence, The ratio of the new potential energy to the potential energy before the insertion of the dielectric is 0.58

Answer:

because pushing it the mass is sitting steal when pushing the mass and no choice but to move

Answer:

The magnitude of vector d is 16 and the angle with the x-axis is 270°

Explanation:

Operations With Vectors

Given two vectors in rectangular components:

[tex]\vec a=(ax,ay)\ ,\ \vec b=(bx,by)[/tex]

The sum of the vectors is:

[tex]\vec a+\vec b=(ax+bx,ay+by)[/tex]

The difference between the vectors is:

[tex]\vec a-\vec b=(ax-bx,ay-by)[/tex]

The magnitude of [tex]\vec a[/tex] is:

[tex]|\vec a|=\sqrt{ax^2+ay^2}[/tex]

The angle [tex]\vec a[/tex] makes with the horizontal positive direction is:

[tex]\displaystyle \tan\theta=\frac{ay}{ax}\\[/tex]

The question provides the vectors:

[tex]\vec a=(2,6)[/tex]

[tex]\vec b=(2,22)[/tex]

[tex]\vec d=\vec a-\vec b[/tex]

Calculate:

[tex]\vec d=(2,6)-(2,22)=(0,-16)[/tex]

The magnitude of [tex]\vec d[/tex] is:

[tex]|\vec d|=\sqrt{0^2+(-16)^2}=\sqrt{0+256}=16[/tex]

The angle is calculated by:

[tex]\displaystyle \tan\theta=\frac{-16}{0}[/tex]

The division cannot be calculated because the denominator is zero. We need to estimate the correct angle by looking at the components of the vector. Since the x-coordinate is zero and the y-coordinate is negative, the vector points downwards (south), thus the angle must be -90° or 270° if the range goes from 0° to 360°.

The magnitude of vector d is 16 and the angle with the x-axis is 270°

Answer:

55 meters East

Explanation:

if you start at the origin, "add" 30 meters (going east #1), subtract 25 meters (going west #1), then add 50 meters (going east #2), you should get 55 meters East.

Hope this helps!

Answer:

81.02m/s toward the southeast

Explanation:

use Pythagorean theorem

c^2=a^2+b^2

create a coordinate system, 79m/s toward the east and 18m/s toward the south.

root(79^2+18^2)=81.02

Answer:

Assuming b = 9.3i + 9.5j (b = 931 + 9.5 is wrong):

a) a×b = 34.27k

b) a·b = 128.43

c) (a + b)·b = 305.17

d) The component of a along the direction of b = 9.66

Explanation:

Assuming b = 9.3i + 9.5j (b = 931 + 9.5 is wrong) we can proceed as follows:  

a) The vectorial product, a×b  is:

[tex] a \times b = (8.6*9.5 - 5.1*9.3)k = 34.27k [/tex]

b) The escalar product a·b is:

[tex] a\cdot b = (8.6*9.3) + (5.1*9.5) = 128.43 [/tex]

c) Asumming (a + b)·b instead a+b·b we have:

[tex](a + b)\cdot b = [(8.6 + 9.3)i + (5.1 + 9.5)j]\cdot (9.3i + 9.5j) = (17.9i + 14.6j)\cdot (9.3i + 9.5j) = 305.17[/tex]

d) The component of a along the direction of b is:

[tex] a*cos(\theta) = \frac{a\cdot b}{|b|} = \frac{128.43}{\sqrt{9.3^{2} + 9.5^{2}}} = 9.66 [/tex]

I hope it helps you!                        

Answer:

0.258 +- 0.0162

Explanation:

First change the uncertainty to percentage uncertainty :

%uncertainty =uncertainty /estimated value *100

0.1/51.6 * 100=0.19%

Do the same for the rest you will get:

0.1%, 1%, 5%

Then add the %uncertainties

0.19% + 0.1% + 1% +5%=6.29%

Find density:

51.6/10 * 100 * 0.20 = 0.258

Change the %percentage uncertainty to absolute uncertainty :

Absolute uncertainty = %uncertainty * the answer

6.29/100 * 0.258 = 0.0162

Answer = 0.258 +- 0.0162

After rounding:

0.26 +- 0.02