Which parental qualities promote healthy child development?

Explanation:

C. neutron.

it does not contain ionizing characteristics.

hope it helps. :)

Answer:

The statement which explains how the total time spent in the air is affected as the projectile's angle of launch increases from 25 degrees to 50 degrees is;

C. Increasing the angle from 25° to 50° will increase the total time spent in the air

Explanation:

The equation that can be used to find the total time, T, spent in the air of a projectile is given as follows;

[tex]T = \dfrac{2 \cdot u \cdot sin(\theta) }{g}[/tex]

Where;

T = The time of flight of the projectile = The time spent in the air

u = The initial velocity of the projectile

θ = The angle of launch of the projectile

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

Given that sin(50°) > sin(25°), when the angle of launch, θ, is increased from 25 degrees to 50 degrees, we have;

Let T₁ represent the time spent in the air when the angle of launch is 25°, and let T₂ represent the time spent in the air when the angle of launch is 50°, we have;

[tex]T_1 = \dfrac{2 \cdot u \cdot sin(25^{\circ}) }{g}[/tex]

[tex]T_2 = \dfrac{2 \cdot u \cdot sin(50^{\circ}) }{g}[/tex]

sin(50°) > sin(25°), therefore, we have;

[tex]\dfrac{2 \cdot u \cdot sin(50^{\circ}) }{g} > \dfrac{2 \cdot u \cdot sin(25^{\circ}) }{g}[/tex]

Therefore;

T₂ > T₁

Therefore, increasing the angle at which the projectile is launched from 25° to 50° will increase the total time spent in the air.

Answer:

r = 2.55 m

Explanation:

Given that,

First charge, q₁ = 32.2 μC

Second charge, q₂ = + 12.3 μC

The force between charges, F = 0.544 N

We need to find the distance between charges. The force between two charges is given by the formula as follows :

[tex]F=k\dfrac{q_1q_2}{r^2}\\\\r=\sqrt{\dfrac{kq_1q_2}{F}} \\\\r=\sqrt{\dfrac{9\times 10^9\times 32.2\times 10^{-6}\times 12.3\times 10^{-6}}{0.544}} \\\\r=2.55\ m[/tex]

So, the charges are 2.55 m apart.

Answer:

2.55

Explanation:

Right on Acellus

Give the other guy brainliest

You can only give brainliest if 2 people answer

Answer:

86.5 m

Explanation:

[tex]s = ut + \frac{1}{2} at {}^{2} \\ s = (0)(4.2) + \frac{1}{2} (9.81)(4.2) {}^{2} \\ s = 86.5m [/tex]

Answer:

86.5 m

Explanation:

Answer:

heyy tell me ur yo u tube ch annel name I'll subscribe it and how many sub scriber u have friend

Explanation:

and are u from Ireland?

Answer:

Its indirectly Proportional

Explanation:

Answer:

Higher moments of inertia indicate that more force has to be applied in order to cause a rotation whereas lower moments of inertia means that only low forces are necessary. Masses that are further away form the axis of rotation have the greatest moment of inertia.

Answer:

36.36 m/s

Explanation:

From the question,

Applying the law of conservation of momentum.

Total momentum before collision = Total momentum after collision .

mu+m'u' = V(m+m')................ Equation 1

Where m = mass of the rocket, m' = mass of the wood, u = initial velocity of the rock, u' = initial velocity of the wood, V = Final velocity after collision

But, the wood was initially at rest

Therefore, u' = 0 m/s

mu = V(m+m')

make V the subject of the equation

V = mu/(m+m')................. Equation 2

Given: m = 0.5 kg, u = 400 m/s, m' = 50 kg

Substitute these values into equation 2

V = (0.5×400)/(0.5+50)

V = 200/5.5

V = 36.36 m/s

Answer:

.

Explanation:

Answer:

When object is placed between convex lens and focal point, image formed is virtual and magnified which is shown in the diagram. Was this answer helpful?

Answer:

Explanation:Hertz is used to measure frequency, but decibel is used to measure intensity level.

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Answer: Something that's vibrating, and you also need medium for those vibrations to start in.

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

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Answer: B  6.2 Hz

Explanation:  Equation for waves v = λf.

Frequency = speed / wavelength    f = v/λ

   f = 74 m/s / 12 m = 6.166... Hz

Answer:

Rounding is necessary: the answer is 6.2 Hz

Explanation:

Answer:

With F = MA Its should take 500 Newtons

Explanation:

F = MA

Answer:

E

Explanation:

Answer:

Yes, you are pulling on Earth. Reasoning. Third Newton's law of motion, action and reaction law, sates that for every action force, there is an equal (in magnitude) and opposite reaction force.

Explanation:

goo gle.

Answer:

B and C is the Answer

Follow me please

Mark brainliest

Answer:

[tex]v = 14.78m/s[/tex]

Explanation:

Given

[tex]KE = 150J[/tex]

[tex]p = 20.3kgm/s[/tex]

Required

Determine the object's speed

Kinetic Energy is calculated as:

[tex]KE = \frac{1}{2}mv^2[/tex]

Make m the subject

[tex]m = \frac{2KE}{v^2}[/tex]

Momentum is calculated as:

[tex]p = mv[/tex]

Make m the subject

[tex]m = \frac{p}{v}[/tex]

So, we have:

[tex]m = \frac{p}{v}[/tex] and [tex]m = \frac{2KE}{v^2}[/tex]

Equate both expressions: [tex]m = m[/tex]

[tex]\frac{2KE}{v^2} = \frac{p}{v}[/tex]

Multiply both sides by v

[tex]v * \frac{2KE}{v^2} = \frac{p}{v}*v[/tex]

[tex]\frac{2KE}{v} = p[/tex]

Make v the subject

[tex]v = \frac{2KE}{p}[/tex]

Substitute [tex]KE = 150J[/tex] and [tex]p = 20.3kgm/s[/tex]

[tex]v = \frac{2 * 150}{20.3}[/tex]

[tex]v = \frac{300}{20.3}[/tex]

[tex]v = 14.78m/s[/tex]

Answer: 1.15 s

Explanation:

Given

Height of rock h=6.5 m

The horizontal speed of tiger u=3.5 m/s

In the vertical direction, there is no initial speed

Using the equation of motion

[tex]\Rightarrow h=ut+\frac{1}{2}at^2\\\\\Rightarrow 6.5=0+\frac{1}{2}\times 9.8\times t^2\\\\\Rightarrow t=\sqrt{\dfrac{13}{9.8}}=1.15\ s[/tex]

Time taken is 1.15 s

Answer:

1280Nm

Explanation:

torque= I×alpha(angular acceleration)

so Angular acceleration is found by the following process.

Answer:

The reason why one cannot hear in space but light can be seen is because light and sound are different kinds of wave

Light is an electromagnetic wave that propagates by a changing magnetic field hat creates a changing electric field. Light is created by a vibrating electric charge, and is transmitted through a medium by the absorption and reemission of the light by the medium particles

Sound is a longitudinal mechanical wave that is propagated by the vibration of the particles of the medium.

Sound requires a medium to propagate and it cannot be propagated or heard through space which is a vacuum.

Sound is created by a source that is vibrating and the vibration is transmitted to particles in the medium including solids, liquids, gases and plasma that the vibrating energy is in direct contact with and the transfer of the sound energy continues between layers of adjacent particles for the medium for the sound to be propagated from place to place

Explanation:

Hey there!

Based on the info this planet is likely to be located near the sun. If you would like to be exact it would be between Mercury and Venus. This is because it’s orbital period is half a year, Venus is about 3/4 of a year, and Mercury is about 1/3 of a year. Hopefully this helps! Good luck!

Answer:

The ampere, symbol A, is the SI unit of electric current. It is defined by taking the fixed numerical value of the elementary charge e to be 1.602 176 634 x 10-19 when expressed in the unit C, which is equal to A s, where the second is defined in terms of ΔνCs.

the device used to measure current in a circuit is ammeter

Isolate the variable by dividing each side by factors that don't contain the variable.

m

=

32.021

¯

3

s

Answer:

a tendency to do nothing or to remain unchanged.

Explanation:

Answer:

Inertia: The resistance an object has to a change in its state of motion.

Explanation:

Hope it helps....

Have a great day!!

Answer:

Option B

Explanation:

As we know phase difference is equal to

[tex]\psi = \frac{2\pi }{\lambda} * \Delta[/tex] ----Eq (1)

where

[tex]\Delta[/tex] is the physical difference between two points = 0.025 m

[tex]\lambda[/tex] is equal to [tex]\frac{v}{f}[/tex]

[tex]\lambda = \frac{20}{100} = 0.2[/tex]

Substituting the given values in above equation, we get -

[tex]\psi[/tex] =

[tex]\frac{2\pi }{0.2} *0.025\\\frac{\pi }{4}[/tex]

Hence, option B is correct