Ask question

Ask question

All categories

3 years ago

15

A timeline is necessary a. For every goal c. For every life goal b. For every academic goal d. For every high school goal please

select the best answer from the choices provided a b c d

2 answers:

Svetradugi [14.3K]3 years ago

7 0

The answer is A. (For every goal).

kiruha [24]3 years ago

5 0

I’d say for every life goal

You might be interested in

What are the magnifications of the objective lenses

Anvisha [2.4K]

Answer:

Objective Lenses: Usually you find 3 or 4 objective lenses on a microscope. They almost always consist of 4x, 10x, 40x and 100x powers, when coupled with a 10x (most common) eyepiece lens, total magnification is 40x (4x times 10x) 100x, 400x and 1000x

Explanation:

Objective lenses come in various magnification powers, with the most common being 4x, 10x, 40x, and 100x, also known as scanning, low power, high power and typically oil immersion objectives, respectively

7 0

3 years ago

Two vectors, A and B, have magnitudes of 10 and 15. The cross product of these vectors has magnitude 32. What is the angle betwe

zalisa [80]

Answer:

The Angle between the vector A and B is 12.32°

Explanation:

Given data

|A×B|=32

|A|=10

|B|=15

To find

Angle α

Solution

From Cross product properties we know that

$|A*B|=|A||B|Sin\alpha \\32=(10)(15)Sin\alpha\\Sin\alpha=32/150\\\alpha =Sin^{-1}(32/150)\\\alpha =12.32^{o}$

The Angle between the vector A and B is 12.32°

7 0

3 years ago

Read 2 more answers

The emission of a Beta particle has the effect of?

Zarrin [17]

Answer: No change in mass

Explanation:

Beta-emission: In this process, a neutron gets converted into a proton and an electron. The electron is referred to as a beta-particle. The beta particle released carries a charge of -1 unit and has negligible mass.

General representation of an element is given as: $_Z^A\textrm{X}$

Z= Atomic number

A = mass number

X = chemical symbol of element

$_Z^A\textrm{X}\rightarrow _{Z+1}^A\textrm{Y}+_{-1}^0\beta$

4 0

4 years ago

A non-relativistic particle of mass m moves in one dimension x under the force

marin [14]

Answer:

U = - (x⁴ / 4 - b x² / 2) , c) The function is zero for x = 0 and √2

Explanation:

a and b) Strength and potential energy are related

F = - dU / dx

Therefore to find the energy we must integrate

∫ dU = -∫ F dx

∫ dU = - ∫ (a x³ –b x) dx

Let's make the integration

U = - (x⁴ / 4 - b x² / 2)

We evaluate the integral between the value

U - U₀ = -x⁴ / 4 + x² / 2 - (-x₀⁴ / 4 + x₀² / 2)

The arbitrary constant is zero, so that U is zero in the zero position

U₀ = 0 for x₀ = 0

c) Mechanical energy is the sum of kinetic energy plus potential energy

Em = K + U

Em = ½ m v² + ½ (x² -x⁴ / 2)

E = ½ m v² + ½ x² (1 - x² / 2)

Energy is positive

2 (E –K) = x² (1-x² / 2)

At the return points K = 0

The zero points of this function are

x = 0

(1- x² / 2) = 0

x² = 2

x = √ 2

The function is zero

x = 0 and √2

d) the movement is bounded for energy values less than or equal to

E <= ½ x² (1-x² / 2)

e) for this part we resolved Newton's second law

F = m a

ax³ - b x = m d²x / dt²

d²x / dt² = -b / m x + a / m x³3

The linear term gives a simple harmonic movement

w₀² = b / m

d²x / dt² = - w₀² x + a / m x³

The frequencies are the frequencies of the harmonic movement plus a small change due to the non-harmonic part of the movement

6 0

4 years ago

Explain why the energy produced by burning wood in a campfire is energy from the sun

stellarik [79]

When you rub wood together fast the sun shines light on it so much light it makes a fire

3 0

3 years ago