if you notice 1.22 waves pass by your boat in 1.3 minutes, what is the frequency of the wave in hertz

Answer:

The new charge is +2

Explanation:

Sodium atom has 11 electrons (2, 8, 1)

sodium ion is cation and it will have 10 electrons after losing 1 electron (Na⁺), the charge is +1 because it needs to lose 1 electron to attain octet structure and become stable.

When this sodium ion loses 1 more electron, the new charge will be Na²⁺.

Thus, the new charge will be  +2

For someone with a negative Weber slope for weight detection, it would be easier to tell the difference between 20 pounds and 21 pounds.

The Weber's Law states that the just noticeable difference (JND) between two stimuli is proportional to the magnitude of the stimuli. A negative Weber slope indicates that the JND decreases as the magnitude of the stimuli increases. In this case, as the weight increases, the person's ability to discriminate between the weights becomes easier.

Therefore, option C, telling the difference between 20 pounds and 21 pounds, would be easier for someone with a negative Weber slope for weight detection.

To learn more about weight, Click here: brainly.com/question/33492657

#SPJ11

An airplane passenger carries a 215 n suitcase up stairs a displacement of 4.20 m vertically and 1.60 m horizontally, then work done is zero.

In physics, work is a measure of the energy transfer that happens when an item is pushed across a length by an external force, at least a portion of which is supplied inside the direction of displacement. Work may be calculated if the forces are constant by multiplied the path's total length by the components of the force operating along the path.

The work done when the force is applied at an angle to the displacement is W = fd cos. Work on a person is conducted not just by moving the body in its entirety from one location to another. An airplane passenger carries a 215 n suitcase up stairs a displacement of 4.20 m vertically and 1.60 m horizontally, then work done is zero.

Therefore, the work done is zero.

To learn more about work, here:

https://brainly.com/question/29762840

#SPJ6

Answer: it will take 15 minutes

Answer:

It will take the boy 136 hours 11 minutes.

Explanation:

35 × 35 = 1225km is the area of the square.

Now find how long it will take the boy:

1225 ÷ 9 = 136.11

Which is 136 hours 11 minutes.

The kinetic energy of the bullet when it left the gun barrel is 1000J.

We know that ,

K.E. = F d

where, K.E. = kinetic energy

F = force

d = distance

Given, F = 1* 10^4 N

          d = 10cm = 0.1 m

Putting these values in above equation we get,

K.E. = 1000J

So the kinetic energy of the bullet when it left the gun barrel is 1000J.

To know more about kinetics visit:

https://brainly.com/question/15580830

#SPJ4

Human roles in energy transition are:

By taking these steps, you can actively contribute to the energy transition and be a part of the movement toward a more sustainable and clean energy future.

To know the main sources of renewable energy:  https://brainly.com/question/79953

The mass of the wagon is 2000 kg.

What is mass?

Mass is a measure of the amount of matter in an object. It is a scalar quantity, which means it has only magnitude and no direction. Mass is a fundamental property of matter and is conserved in all physical processes. The unit of mass in the International System of Units (SI) is the kilogram (kg).

We can use the equation of motion to find the mass of the train wagon:

Δv = a * Δt

where Δv is the change in velocity (5.6 m/s - 2.4 m/s = 3.2 m/s), Δt is the change in time (2 s), and a is the acceleration.

We can use the force equation to find the acceleration:

F = m * a

where F is the force acting on the wagon (3200 N) and m is the mass of the wagon.

We can substitute the acceleration from the second equation into the first equation:

Δv = F / m * Δt

We can now solve for the mass of the wagon:

m = F / a * Δt = 3200 / (Δv / Δt) = 3200 / (3.2 / 2) = 3200 / 1.6 = 2000 kg

So the mass of the wagon is 2000 kg.

To learn more about mass:

https://brainly.com/question/19385703

#SPJ1

Coal, and oil are fossil fuels they are non - renewable. Nuclear sources are alo non renewable energy since they are unstable and hazardous to the environment and thus are difficult to manage for an efficient energy generation.

Renewable energy sources are those which can reproduced and will be long lasting over time. Whereas non renewable resources like fossil fuels  and nuclear sources are not at all recycled. Moreover they causes harmful effects to the environment.

Waste from coal or natural gas production necessitates the use of surplus energy and environmental mitigation. Considering these variables, it is evident that coal's overall usable energy efficiency is just 29% of its initial energy value.

Solar energy is the better alternative as a renewable energy source.Wind, on the other hand, rates at 50% efficiency. Wind energy sometimes has a higher efficiency than this %. And using wind energy doesn't produce any pollution as solar energy.

To find more on renewable energy, refer here:

https://brainly.com/question/17373437

#SPJ5

Electromagnetic radiation is a sort of energy emission. This has two components, electrical and magnetic components, as is clear from the name. The radiation is hence known as electromagnetic radiation. In Fig. 1.1, it is depicted. From a very low frequency of 3 Hz to a very high frequency of 300 EHz (1 EHz = 1018 Hz), this radiation has a wide frequency range. Table 1.1 lists the metric prefixes along with their symbols.

The magnetic and electric vectors are perpendicular to one another and to the path of propagation. In Fig. 1, this is depicted. 1. Depending on the frequency, this electromagnetic spectrum is separated into different section

 Wavelength and Frequency Relationship

Wavelength

According , a wavelength is the separation between two crests or troughs. It is described in the "electronic spectrum" in terms of nm. 1 nm = 10−9 m. Radiation's energy and wavelength are inversely related. In other words, energy increases when the wavelength lowers and decreases when the wavelength grows.

In the IR spectrum, wavenumber, which has the SI value of cm1, is used in place of or v.

 The relationship between frequency and wavelength

where is the wavenumber, is the wavelength, c is the speed of light, and is the frequency of the radiation.

To know more about wavelength, click the link below;

https://brainly.com/question/4112024

#SPJ4

Answer:

\(64 cm^3\)

Explanation:

Density

The density of a substance is the mass per unit volume. The density varies with temperature and pressure.

The formula to calculate the density of a substance of mass (m) and volume (V) is:

\(\displaystyle \rho=\frac{m}{V}\)

We have a cube-shaped piece of copper of 4 cm of side length. The volume of the piece is:

\(V=(4\ cm)^3=64\ cm^3\)

Surprisingly, no other magnitude is required, thus the answer is:

\(\mathbf{64 cm^3}\)

Answer:

\(g=2.513m/s^2\)

Explanation:

From the question we are told that:

Mass Taken \(m=100g \approx 100*10^{-3}\)

Strain on Spring \(l_s=22.6cm \approx 22.6*10^{2}\)

Distance pulled down \(d_d=10.9\)

Time for ten oscillations take \(t=18.8s\)

Generally the equation for angular velocity is mathematically given by

\(\omega=2\pi\\\omega=2\pi*\frac{10\ oscillations}{t}\\\\\omega=2\pif=2\pi*\frac{10\ oscillations}{18.8}\\Also\\\omega=\sqrt{\frac{k}{m}} \\\omega=\sqrt{\frac{k}{100*10^{-3}}}\)

Therefore

\({2\pi*\frac{10\ oscillations}{18.8}}=\sqrt{\frac{k}{100*10^{-3}}} \\k=\sqrt{2\pi*\frac{10\ oscillations}{18.8}}*100*10^{-3}\\k=1.112N/m\)  

Generally the equation for Acceleration due to gravity is mathematically given by

\(F=mg\\mg=k l_s\\g=\frac{k l_s}{m}\\g=\frac{1.112*2.6*10^{2}}{100*10^{-3}}\)

\(g=2.513m/s^2\)

it's C

because the faster an object moves the more kinetic energy it has.

Answer:

The stovetop system is open because heat can be lost into the air. A closed system is one that cannot transfer energy to its surroundings.

The charge stored on the capacitor is 702 × 10^-12 C.

A capacitor is a device that stores an electric charge. It consists of two conductors separated by an insulator, which is often called a dielectric.

Capacitance is a measure of a capacitor's ability to store an electric charge. It's measured in farads (F) or picofarads (pF).A capacitor stores electrical energy in the form of an electric field.

The charge that is stored on a capacitor depends on the capacitance of the capacitor, as well as the voltage applied across the capacitor. The formula for calculating the charge stored on a capacitor is Q = CV,

where Q is the charge stored on the capacitor, C is the capacitance of the capacitor, and V is the voltage applied across the capacitor.

The capacitance of the capacitor is given as 13 pF and the voltage applied across the capacitor is 54 V.

Q = CVQ = 13 × 10^-12 F × 54 VQ = 702 × 10^-12 CTherefore, the charge stored on the capacitor is 702 × 10^-12 C.

to know more about capacitor refer here:

https://brainly.com/question/17176550#

#SPJ11

Answer:

= 1440 kg·m/s

Explanation:

Step by Step Solution to find Momentum of Mass = 288 kg & Velocity = 5 m/s:

Given that,

mass (m) = 288 kg

velocity (v) = 5 m/s

Substitute the value into the formula

p = 288 x 5

p = 1440 kg·m/s

∴ Momentum (p) =1440 kg·m/s

Answer:

deposition, sublimation

Explanation:

The changes of state occur between solids and gases during deposition and sublimation. The second and fifth option are correct.

The conversion of solid to gas and gas to solid directly, as in case of solid ice made of carbon di oxide.

The change of state means changing the phase of the matter with the change in temperature and pressure of the surrounding.

The vaporization change liquid to gas or solid to liquid and vice versa. Freezing is converting liquid to solid. Melting is converting from solid to liquid.

The rest phenomenon are deposition and sublimation in which phase change between solid and gas.

Thus,  second and fifth option are correct.

Learn more about sublimation.

https://brainly.com/question/10936758

#SPJ2

The vectors point along the axis of rotation with a direction determined by an arrow.

There are two types of physical quantity one is a scaler and another one is a vector.

The quantity that requires only megnitude to define is known as the scalar quantity. While the vector quantities need both megnitude and the direction to define.

The vector quantity is represented by an arrow. The vectors point along the axis of rotation with a direction determined by an arrow.

The angular quantities L, omega, and alpha are vector quantities.

Hence arrow is the correct answer for the blank.

To learn more about the vector refer to the link;

https://brainly.com/question/13322477

The direction of the vectors of angular momentum and L, angular velocity omega and the mass alpha is determined using the right hand rule.

Righthand rule in physics states that, when we curl our right hand fingers, the direction of the angular momentum and velocity will be in the direction of thumb and curl of fingers determine the axis of rotation.

Angular momentum is a vector quantity defined as the product of moment of inertia and angular velocity where, the angular velocity ω is the rotational analogue of linear velocity i.e.. product of the linear velocity and radius of rotational path.

Therefore, the angular quantities L, angular velocity ω along the axis of rotation can be determined using the right hand rule. Where direction of thump represents the direction of vector components.

To find more on right hand rule, refer here:

https://brainly.com/question/9750730

#SPJ2

To calculate the energy of a wave of green light with a wavelength of 505 nm, we can use the equation\(E = hc/λ\\\), where E represents energy, h is Planck's constant, c is the speed of light, and λ is the wavelength.

According to the equation \(E = hc/λ\\\), the energy of a wave is inversely proportional to its wavelength. As the wavelength decreases, the energy of the wave increases.

To calculate the energy of the green light wave with a wavelength of 505 nm, we need to convert the wavelength to meters. Using the conversion factor \(1 nm = 1 × 10^(-9)\)m, we can express the wavelength as \(505 nm × (1 × 10^(-9) m/1 nm) = 505 × 10^(-9) m.\)

Next, we substitute the values into the equation E = hc/λ. Planck's constant, h, is approximately 6.626 × 10^(-34) J·s, and the speed of light, c, is approximately 3.00 × 10^8 m/s.

\(E = (6.626 × 10^(-34) J·s × 3.00 × 10^8 m/s) / (505 × 10^(-9) m) = 3.941 × 10^(-19) J.\)

Therefore, the wave of green light with a wavelength of 505 nm has an energy of approximately \(3.941 × 10^(-19) joules.\)

learn more about wavelength here:https://brainly.com/question/30937529

#SPJ11

The charge of the particle must be approximately 2.58 * 10⁻⁵ C in order for it to remain balanced against gravity in the given electric field.

To determine the charge of the particle, we can equate the electric force with the gravitational force. The electric force is given by the equation F_electric = qE, where q is the charge and E is the electric field. The gravitational force is given by the equation F_gravity = mg, where m is the mass of the particle and g is the acceleration due to gravity.

Setting the two forces equal to each other, we have qE = mg.

Rearranging the equation to solve for q, we get

\(q = mg/E.\)

Given that the mass of the particle is 1.70 g (or 0.0017 kg) and the electric field magnitude is 645 N/C, we can substitute these values into the equation.

q = (0.0017 kg) * (9.8 m/s²) / (645 N/C)

≈ 2.58 * 10⁻⁵ C

Therefore, the charge of the particle must be approximately 2.58 * 10⁻⁵ C in order for it to remain balanced against gravity in the given electric field.

To know more about charge visit-

https://brainly.com/question/13871705

#SPJ11

Answer: Attach it to clothing, personal flotation device or the person's person.

Explanation:

This particular Question or problem has to do with the rules and regulations or laws governing the use of Personal Watercraft(PWC) in the state of Florida in the United States of America. Hence, one of the rules that is applicable to the use of boats and waterways or the use of personal watercraft in Florida is that in florida, if ones pwc is equipped with an engine cut-off lanyard the person operating it must ATTACH IT TO THE CLOTHING, PERSONAL FLOATATION DEVICE IR THE OPERATORS' PERSON.

Another rule band the use of flammable personal flotation device with Personal Watercraft(PWC) in the state of Florida. All this rules and guildlines are made to limit or minimize hazards.

The unit in which force is measured.

A newton is the unit in which force is measured because it represents the amount of force required to accelerate a 1 kilogram mass at a rate of 1 meter per second squared. In other words, it is the force needed to cause a mass of 1 kilogram to accelerate at a rate of 1 meter per second squared. This relationship between force, mass, and acceleration is described by Newton's second law of motion. The unit is named after Sir Isaac Newton, a physicist and mathematician who formulated the laws of motion.

.

We want to convert the speed of the bus from kilometers per hour to meters per second.

To do this, multiply the speed in km/hr by 1,000 and divide by 3,600.

The formula to do this is: 1 km/hr = 1,000/3,600 m/s

Therefore, we have that 45 km/hr is:

45 x 1000/ 3,600 ➡️ 12.5 m/s = 1.25 x 10 to the 1st power m/s

The answer is option A.

fusion is when solid changes it's state to liquid

and vaporization is when liquid changes it's state to gas

so the difference between fusion and vaporization is the state

F =

t = 0.17 s

Impulse (J) = 20,000 N

J = F x t

F = J / t = 20,000 Ns / 0.17 s = 117,647.0588 N

Answer:

Explanation:

For refraction , the formula is

sin i / sin r = μ₂ / μ₁

where light is travelling from medium 1 to 2 having refractive index of μ₁ and μ₂ . Angle of incidence in medium 1 is i and angle of refraction in medium 2 is r .

Here i = 70°, r = 37°

μ₁ = 1.8 ,μ₂ = ?

sin70 / sin 37 = μ₂ / 1.8

.939 / .602 = μ₂ / 1.8

1.56 =  μ₂ / 1.8

μ₂ = 2.81 .

The value of refraction index for the second medium will be  \(\mu_2=2.16\)

Every material has a different refractive index. The refracted index of any material shows that the light is refracted by how much angle.

So like for water its value will be different also for glass its value will be different.

Now it is given in the question that

Angle of incidence \(i=70^o\)

Refractive index of the first medium \(\mu_1=1.8\)

Angle of refraction \(r=37^o\)

Now from snells law

\(\dfrac{Sin \ i}{Sin \ r} = \dfrac{\mu_2}{\mu_1}\)

\(\dfrac{Sin70}{Sin37} = \dfrac{\mu_2}{1.8}\)

\(\mu_2= \dfrac{Sin70\times1.8}{Sin37}\)

\(\mu_2=2.16\)

Thus the value of the refraction index for the second medium will be  \(\mu_2=2.16\)

To know more about the Refractive index follow

https://brainly.com/question/10729741

Answer:

17m/s

Explanation:

v=u+at

v=5+3*4

v=17m/s

The required dimensions which will result in the largest pond are calculated to be l = 50 feet, b = 50 feet.

The perimeter of the rectangular pond is given as 200 feet.

Mathematically, we know perimeter = 2( l + b)

So, 2( l + b) = 200

( l + b) = 100

Breadth = 100 - length

The area of rectangle = l b

A = l (100 - l) = -l² + 100 l

The function has a maximum and the parabola opens down if the x² coefficient is negative.

A = -x² + 100 x

We have a < 0, so f(x) has a maximum,

we know that, f(-b/2a) = maximum

l = -b/2a = -100/2(-1) = 50

b = 100 - l = 100 - 50 = 50

The dimensions for maximum area is given as, l = 50 feet, b = 50 feet.

To know more about dimensions:

https://brainly.com/question/29184088

#SPJ4

Let a, b, c be the coefficients in the balanced reaction,

a P₄O₁₀ + b H₂O   ⇒   c H₃PO₄

Count the number of each atom on either side of the reaction:

• P : 4a = c

• O : 10a + b = 4c

• H : 2b = 3c

Suppose a = 1. Then from the first equation,

c = 4•1   ⇒   c = 4

and from the third equation,

2b = 3•4 = 12   ⇒   b = 6

The third equation is also satisfied:

10a + b = 4c   ⇒   10•1 + 6 = 4•4   ⇒   16 = 16

So, the balanced reaction is

P₄O₁₀ + 6 H₂O   ⇒  4 H₃PO₄

which makes D the correct answer.

The maximum height that the ball will reach is 25 feet. when the ball will reach its maximum height after 1.25 seconds.

The maximum height that the ball will reach can be determined by finding the vertex of the parabola represented by the function

h(t) = 40t - 16t²

The x-coordinate of the vertex can be found using the formula

x = - b / (2a)

where:

a = coefficient of the t² term

b = coefficient of the t term.

Given

a = -16

b = 40

x = -40/(2×(-16))

= 1.25

This means that the ball will reach its maximum height after 1.25 seconds. We need to substitute this value of t into the function to determine the maximum height:

h(1.25) = 40 (1.25) - 16 (1.25)²

= 50 - 25

= 25.

Therefore, the maximum height that the ball will reach is 25 feet.

To learn more about the vertex of the parabola:

https://brainly.com/question/30945046

#SPJ4