In what way does Isaac represent us?

Answer:

Cuanto más fuerte es el ácido, más rápido se disocia para generar H +start superscript, plus, end superscript. Por ejemplo, el ácido clorhídrico (HCl) se disocia completamente en iones hidrógeno y cloruro cuando se mezcla con agua, por lo que se considera un ácido fuerte.

Answer:

(a) 8.57 x 10^8 Hz

(b) 23.3 cm

Explanation:

Wavelength = 35 cm = 0.35 m

speed =3 x10^8 m/s

Let the frequency is f.

(a) The relation is

speed  = frequency x wavelength

3 x 10^8 = 0.35 x f

f = 8.57 x 10^8 Hz

(b) refractive index of glass  is 1.5

The relation for the refractive index and the wavelength is

wavelength in glass= wavelength in air/ refractive index.

Wavelength in glass= 35/1.5 = 23.3 cm

Answer:

3.85*10^8m

Explanation:

We know that

Speed v = distance/time t

So distance = v x t

So = 3*10^8 x 2.56s

= distatance = 7.7*10^8m

However this is double the distance from the earth to the moon, so to get distance from earth to the moon we divide by 2

7.7*10^8/2= 3.85*10^8m

Distribute the product:

a×b = (8i + j - 2k) × (5i - 3j + k)

a×b = 8i × (5i - 3j + k) + j × (5i - 3j + k) - 2k × (5i - 3j + k)

a×b = (40 (i×i) - 24 (i×j) + 8 (i×k))

… … … + (5 (j×i) - 3 (j×j) + k×j)

… … … + (-10 (k×i) + 6 (k×j) - 2 (k×k))

Recall the definition of the cross product:

i×i = j×j = k×k = 0 (the zero vector)

i×j = k

j×k = i

k×i = j

and for any two vectors x and y, we have x×y = -(y×x).

So we have some cancellation and rewriting:

a×b = (40 (i×i) - 24 (i×j) + 8 (i×k))

… … … + (5 (j×i) - 3 (j×j) + j×k)

… … … + (-10 (k×i) + 6 (k×j) - 2 (k×k))

a×b = (-24k - 8j) + (-5k + i) + (-10j - 6i)

a×b = -5i - 18j - 29k

Then

b×a = -(a×b) = 5i + 18j + 29k

Answer:

Explanation:

Please see attached photo for explanation.

In the attached photo, X is the distance of the swimmer from the cliff.

Thus, we can obtain the value of x by using Tan ratio as illustrated below:

θ = 54.6°

Opposite = 100 foot

Adjacent = x =.?

Tan θ = Opposite /Adjacent

Tan 54.6 = 100/x

Cross multiply

x × Tan 54.6 = 100

Divide both side by Tan 54.6

x = 100 / Tan 54.6

x = 71.07 foot

Therefore, the swimmer is 71.07 foot from the cliff.

The angular momentum of an object is the product of its radius and linear momentum. Here, the angular momentum of earth is 2.7 × 10⁴⁰ kg m²/s.

Momentum of an object is its ability to bring the applied force to make maximum displacement. It is the product of its mass and velocity .

P =  m v

The rotational analogue of linear momentum is called angular momentum. It is the product of linear momentum and radius of the circular path trough which the object is moving.

L = m v r

Given

m = 5.97 × 10²⁴ kg

v = 2.98 × 10⁴ m/s

r = 1.50 × 10¹¹ m.

L = 5.97 × 10²⁴ kg × 2.98 × 10⁴ m/s  × 1.50 × 10¹¹ m = 2.7 × 10⁴⁰ kg m²/s.

Therefore, the angular momentum of earth is 2.7 × 10⁴⁰ kg m²/s.

Find more on angular momentum:

https://brainly.com/question/29563080

#SPJ9

Explanation:It is given that,

Mass of bumper car, m₁ = 202 kg

Initial speed of the bumper car, u₁ = 8.5 m/s

Mass of the other car, m₂ = 355 kg

Initial velocity of the other car is 0 as it at rest, u₂ = 0

Final velocity of the other car after collision, v₂ = 5.8 m/s

Let p₁ is momentum of of 202 kg car, p₁ = m₁v₁

Using the conservation of linear momentum as :

p₁ = m₁v₁ = -342 kg-m/s

So, the momentum of the 202 kg car afterwards is 342 kg-m/s. Hence, this is the required solution.

Answer:

1717 kg*m/s

Explanation:

found it put it in on acellus and it was right

The approximate heat transfer through 1.65 cm of air with a temperature difference of 23.0 °C is approximately 24.4 J/s.

To approximate the heat transfer through the air layer in the double-paned window, we can assume that the glass layers have a negligible impact on the heat flow. The heat transfer can be calculated using Fourier's Law of Heat Conduction, which states that the heat flow (Q) is proportional to the temperature difference (ΔT) and inversely proportional to the thickness (L) and thermal conductivity (k) of the material.

First, we need to calculate the effective thermal conductivity of the air layer due to its thickness and the thermal conductivity ratio between air and glass. Let's denote the thermal conductivity of air as k_air and the thermal conductivity of glass as k_glass. Since glass has a thermal conductivity roughly 36 times greater than air, we have k_glass = 36 * k_air.

Next, we calculate the effective thermal conductivity of the air layer as:

k_eff = (k_air * L_air) / (L_air + k_glass)

Substituting the given values, we have:

k_eff = (k_air * 0.0165 m) / (0.0165 m + 0.005 m) = 0.01309 * k_air

Now, we can calculate the heat flow per second through the air layer using the formula:

Q = (k_eff * A * ΔT) / L_air

Substituting the given values, we get:

Q = (0.01309 * k_air * 0.760 m^2 * 23.0 K) / 0.0165 m = 24.4 J/s

Therefore, the approximate heat transfer through 1.65 cm of air with a temperature difference of 23.0 °C is approximately 24.4 J/s.

For more questions on temperature, click on:

https://brainly.com/question/27944554

#SPJ8

Answer:

a

  \(\phi = 1.78 *10^{-7} \ Weber\)

b

 \(L = 1.183 *10^{-7} \ H\)

Explanation:

From the question we are told that

   The radius is  \(r = 6 \ cm = \frac{6}{100} = 0.06 \ m\)

   The current it carries is  \(I = 1.50 \ A\)

The  magnetic flux of the coil is mathematically represented as

       \(\phi = B * A\)

Where  B is the  magnetic field which is mathematically represented as

         \(B = \frac{\mu_o * I}{2 * r}\)

Where  \(\mu_o\) is the magnetic field with a constant value  \(\mu_o = 4\pi * 10^{-7} N/A^2\)

substituting  value

          \(B = \frac{4\pi * 10^{-7} * 1.50 }{2 * 0.06}\)

          \(B = 1.571 *10^{-5} \ T\)

The area A is mathematically evaluated as

       \(A = \pi r ^2\)

substituting values

       \(A = 3.142 * (0.06)^2\)

       \(A = 0.0113 m^2\)

the magnetic flux is mathematically evaluated as    

        \(\phi = 1.571 *10^{-5} * 0.0113\)

         \(\phi = 1.78 *10^{-7} \ Weber\)

The self-inductance is evaluated as

       \(L = \frac{\phi }{I}\)

substituting values

        \(L = \frac{1.78 *10^{-7} }{1.50 }\)

         \(L = 1.183 *10^{-7} \ H\)

C) a bicyclist riding up a steep hill

The metaphor for a system with rising gravitational potential energy is "a bicyclist riding up a steep hill." Let's get into greater detail:

A cyclist faces resistance from gravity as they ride up a steep slope. The cyclist's elevation, or height above the ground, rises as they cycle and climb uphill. Gravity is pulling the cyclist down the hill by exerting downward force. The cyclist must apply force to the pedals in order to move forward and overcome the pull of gravity. In order to do this, the bicyclist must transform chemical energy from their body into mechanical energy. The distance of the cyclist from the centre of the Earth grows as they ride up the hill. The height and mass of an object affect its gravitational potential energy. In this scenario, as the bicyclist's height rises, their gravitational potential energy also rises.

     Due to the higher elevation, the energy input from the biker is stored as increased potential energy. When the bicycle descends the hill or does work, this potential energy can be transformed back into kinetic energy or other types of energy.

If a point has 40 J of energy and the electric potential is 8 V, the charge must be: A. 5 C

Given the following the details;

To find the quantity of charge;

Mathematically, the quantity of charge with respect to electric potential is given by the formula;

\(Quantity \; of \; charge = \frac{Energy}{Electric \; potential}\)

Substituting the values into the formula, we have;

\(Quantity \; of \; charge = \frac{40}{8}\)

Quantity of charge = 5 Coulombs

Therefore, the quantity of charge must be 5 Coulombs.

Find more information: https://brainly.com/question/21808222

\(\boxed{\sf E=QV}\)

\(\\ \rm\longmapsto Q=\dfrac{E}{V}\)

\(\\ \rm\longmapsto Q=\dfrac{40}{8}\)

\(\\ \rm\longmapsto Q=5C\)

Hence total charge must be 5C.

Note:-

SI unit of charge is Coulomb (C)

Answer:

A. Its energy travels in a direction which is the same as the direction of the particles of the medium.

Explanation:

Because the other ones are characteristics of a transverse wave.

After 42 minutes, there are 203 x \(10^{20\) atoms remaining of the radioactive substance.

To determine the number of atoms remaining after a certain amount of time has passed, we can use the formula for radioactive decay:

N(t) = N0 * \((1/2)^{(t / T)\),

where:

N(t) = number of atoms remaining at time t,

N0 = initial number of atoms (812 x  \(10^{20\) atoms),

T = half-life of the substance (21 minutes), and

t = time that has passed.

Let's calculate the number of atoms remaining after a given time.

Suppose the time passed is t = 42 minutes (twice the half-life).

N(t) = 812 x  \(10^{20\) * \((1/2)^{(42 / 21)\)

N(t) = 812 x  \(10^{20\) * \((1/2)^2\)

N(t) = 812 x  \(10^{20\) * 1/4

N(t) = 203 x  \(10^{20\) atoms.

So, after 42 minutes, there are approximately 203 x \(10^{20\) atoms remaining of the radioactive substance.

know more about radioactive here:

https://brainly.com/question/1236735

#SPJ8

570k or 1050k

270k+290k= 570k

270k•290k = 1050k

Answer:

Energy in carriage (Potential energy) = 4,116 J

Explanation:

Given:

Mass of baby = 20 kg

Height = 21 m

Find:

Energy in carriage (Potential energy)

Computation:

The energy accumulated in an object as a result of its location relative to a neutral level is known as potential energy.

In carriage accumulated energy is potential energy.

Energy in carriage (Potential energy) = mgh

Energy in carriage (Potential energy) = (20)(9.8)(21)

Energy in carriage (Potential energy) = 4,116 J

Answer:

a)     a = 27.44 m / s²,  b) a = 5.39 m / s², c)  a = 156.8 m / s², cabinet maximum acceleration does not change

Explanation:

a) In this exercise the wheels of the truck rotate to provide acceleration, but the contact point between the ground and the 2 wheels remains fixed, therefore the coefficient of friction for this point is static.

Let's apply Newton's second law

we set a regency hiss where the x axis is in the direction of movement of the truck

Y axis y

        N- W = 0

        N = W = m g

X axis

       2fr = m a

the expression for the friction force is

      fr = μ N

      fr = μ m g

we substitute

      2 μ m g = m /2   a

     a = 4 μ g

      a = 4 0.7 9.8

      a = 27.44 m / s²

b) let's look for the maximum acceleration that can be applied to the cabinet

       fr = m a

       μ N = ma

       μ m g = m a

       a = μ g

       a = 0.55  9.8

       a = 5.39 m / s²

as the acceleration of the platform is greater than this acceleration the cabinet must slip

c) the friction force is in the four wheels as well

With when the truck had two-wheel Thracian the weight of distributed evenly between the wheels, in this case with 4-wheel Thracian the weight must be distributed among all

applying Newton's second law

         4 fr = (m/4) a

         16 mg = (m) a

         a = 16 g

         a = 16 9.8

         a = 156.8 m / s²

cabinet maximum acceleration does not change

ANSWER:

STEP-BY-STEP EXPLANATION:

Given:

Walrus' kinetic energy = 2.05 x \(10^6\) J.

To calculate the walrus' kinetic energy,

we need to use the formula KE = 0.5\(mv^2\), where m is the mass of the walrus and v is its velocity.

We know the mass of the walrus is 907 kg and its velocity is 23 m/s.

Substituting these values in the formula, we get KE = 0.5 x 907 x \((23)^2\) = 2.05 x\(10^6\) J.

Therefore, the walrus' kinetic energy is 2.05 x \(10^6\) J.

It is important to note that kinetic energy is the energy an object possesses due to its motion, and is directly proportional to both its mass and velocity.

For more such questions on kinetic energy, click on:

https://brainly.com/question/8101588

#SPJ11

The correct option is A. which states that in the same liquid, the pressures are equal at all points that are at the same distance below the liquid surface.

This is because the pressure is determined by the weight of the liquid column above it, which is the same for all points at the same depth. The pressure along the vertical walls of the container is not equal because the liquid is in hydrostatic equilibrium which means that the pressure is not the same at all points in the liquid, and since the walls are vertical, the pressure is the same along them. The pressure at any point not touching any immersed objects is not equal to the pressure at any other point not touching any immersed objects because the pressure is determined by the weight of the liquid column above it, which is the same for all points not touching any immersed objects. The pressure is not affected by factors such as sunlight since the pressure at any point  in the sunlight is equal to the pressure at any other point not in the sunlight.

To learn more about pressure click here https://brainly.com/question/29341536

#SPJ1

equal in magnitude but opposite in direction

To better understand crash dynamics we have to look at "the laws of motion."

The laws of motion

The laws of motion were introduced by Sir Isaac Newton in 1687 in his book Philosophiæ Naturalis Principia Mathematica ("Mathematical Principles of Natural Philosophy"), which defined the laws of motion, or three fundamental laws that govern the movement of bodies. The laws of motion, according to Newton, govern the motion of an object or a system of objects that interact.

It defines the concepts of force and mass, and the fundamental dynamics of motion.The following are the laws of motion:Every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. The velocity of an object changes proportional to the force applied to it, and the acceleration of an object is proportional to both its force and its mass. For every action, there is an equal and opposite reaction.

Therefore, these laws are necessary to fully grasp crash dynamics because they explain how objects respond to outside forces that cause them to accelerate or decelerate.

For more question laws of motion

https://brainly.com/question/15683343

#SPJ8

The average velocity is 4i m/sec

The average acceleration is 4i

Average velocity is defined as the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs. T

According to the question,

x=at²i + btj ( t is in second and x is in meter).

Average velocity =  \(\frac{dx}{dt}\)

\(\frac{dx}{dt} = 2at i + b j\\\\\frac{dx}{dt} = 2 * 2 * t i +1 j\\\\\frac{dx}{dt} = 4t i +j\)

\(\frac{dx}{dt}\) in the time interval of 2 to 3 sec is

at 2 sec,

\(\frac{dx}{dt} = 4 * 2 i +j = 8i +j\)

at 3 sec ,

\(\frac{dx}{dt}\) = 4 * 3 i + j = 12i+j

Therefore the average velocity is

\(\frac{(12i +j - 8i -j)}{(3-2)} = 4i\)

The velocity at any given time is   \(\frac{dx}{dt} = 4t i +j\)

The acceleration at any given time is \(\frac{dx^2}{dt^2}\)

\(\frac{dx^2}{dt^2} = 4 i\)

The average acceleration in the time interval  t₁=2sec and t₂=3sec

Average Acceleration =  4i

Learn more about  average velocity here:

https://brainly.in/question/11504533

#SPJ1

Answer:

would the answer be c

Explanation: that what i think in my opian

Answer:

A

Explanation:

Answer:

4.24nm

0.385eV

Explanation:

Maximum wavelength (λmax) :

λmax = ( hc) /Φ

h = plancks constant = 6.63 * 10^-34

c = speed of light = 3*10^8

1ev = 1.6 * 10^-19

Φ = 2.93eV = 2.93* (1.6*10^-19) = 4.688*10^-19

λmax = [(6.63 * 10^-34) * (3 * 10^8)] / 4.688*10^-19

λmax = 19.89 * 10^-26 / 4.688*10^-19

λmax = 4.242 * 10^-7 m

λmax= 4.24nm

B.)

E = hc / eλ eV

λ = 3.75nm = 3.75 * 10^-7m = 375 *10^-9

E = (6.63 * 10^-34) * (3 * 10^8) / (1.6 * 10^-19) * (375 * 10^-9)

E = 19.89 * 10^-26 / 600 * 10^-28

E = 0.03315 * 10^-26 + 28

E = 0.03315 * 10^2

E = 3.315 eV

Stopping potential : (3.315 eV - 2.93eV) = 0.385eV

(a) The average acceleration of the car is 8 m/s^2.

(b)  The car traveled a distance of  144 meters during this time period.

To find the average acceleration of the car, we can use the formula:

average acceleration = change in velocity / time

average acceleration = (48 m/s - 0 m/s) / 6 s

average acceleration = 8 m/s^2

So the average acceleration of the car is 8 m/s^2.

To find how far the car traveled during this time period, we can use the formula:

distance = initial velocity x time + (1/2) x acceleration x time^2

distance = 0 m/s x 6 s + (1/2) x 8 m/s^2 x (6 s)^2

distance = 0 m + 144 m

distance = 144 m

Learn more about average acceleration here: https://brainly.com/question/26246639

#SPJ1

Answer:

1/2

Explanation:

Given

c=distance

a= length

e= c/a

3/6

e= 1/2 or 0.5

If a mass slides down an incline, and the slope is frictionless, the gravitational potential energy is transformed to kinetic energy as it descends.

In physics, an object's kinetic energy is the energy it has as a result of its motion. It is defined as the amount of work required to accelerate a body of a given mass from rest to a certain velocity. The body retains its kinetic energy after gaining it during acceleration until its speed changes. Kinetic energy is the energy that an item has as a result of its movement. If we wish to accelerate an item, we must apply force to it. Using force demands us to put in effort. After work is completed, energy is transferred to the item, and the thing moves at a new constant speed.

Here,

When a mass slides down an incline with no friction, its gravitational potential energy is converted to kinetic energy as it falls.

To know more about kinetic energy,

https://brainly.com/question/26472013

#SPJ4

Answer:

Explanation: The poles of an electromagnet can even be reversed by reversing the flow of electricity. If a wire carrying an electric current is formed into a series of loops, the magnetic field can be concentrated within the loops.  All of their little magnetic fields add together, creating a stronger magnetic field.

Answer: B im sorry if its wrong

Explanation: