4.
Which wave diffracts the most when encountering an obstacle?
O a surface wave
O a wave with the longest wavelength
O a longitudinal wave
O a wave with the highest amplitude

Answer:

Na⁺

Explanation:

In the given atom:

  Number of protons  = 11

  Number of neutrons  = 12

So, the number of electrons  = 10

The number of protons within an atom is used to determine the kind of atom we have been given.

Since the number of protons is the same as the atomic number, here the atomic number is 11 and this is Sodium .

 In this sodium atom, the number of protons is more than the number of electrons;

 Charge = number of protons  - number of electrons  = 11 - 10  = +1

So, we have a Na⁺

Answer:

6.07 N

Explanation:

Given that,

Force, F = 35 N

It makes 10 degree angle with the positive x-axis.

We need to find the magnitude of the vertical component of the force. It can be given by :

[tex]F_y=F\sin\theta\\\\=35\times \sin(10)\\\\=6.07\ N[/tex]

So, the magnitude of the vertical component of the force is 6.07 N.

Answer:

Vertical component of force is equal to [tex]6.067[/tex] N

Explanation:

The magnitude of the vertical component on any force when α is the angle between the direction of force and the X -axis is

[tex]F_y = F * Sin\alpha[/tex]

Substituting the given values in above equation, we get -

[tex]F_y = 35 * Sin 10\\F_Y = 35 * 0.1736\\F_Y = 6.067[/tex]

Vertical component of force is equal to [tex]6.067[/tex] N

Answer:

the world would just slide forever

Explanation:

A frictional force exists when two objects come in contact with each other. It opposes motion, meaning if something is sliding on the floor, friction is the force that makes it eventually come to a stop. In a world without friction, the object would continue to slide forever, if not acted on by another force.

Answer:

20kilograms

Explanation:

GPE = MGH

2000 = M × 10m/s2 × 10

100m= 2000

m = 20kg ( Answer)

Answer:

water and air

Explanation:

The examples of medium from this problem is water and air.

A medium is an agency or a means of propagating energy, waves or even facilitating a chemical reaction.

Fluids are very good medium in chemistry for chemical reactions. The two most common media used are air and water.

In physics, a vacuum is an empty space that has been evacuated. It also serves as a medium to study some physical phenomenon.

Answer:

because there is external pressure is less in the height.

hope it helps.

Answer:

Energy stored in an object due to its position is Potential Energy. Energy that a moving object has due to its motion is Kinetic Energy.

Explanation:

Welcome.

Answer:

Do you have a list of all the energies?

Bomb exploding would use chemical reaction (ammonium nitrate for ex), then thermal energy from heat generated, then kinetic energy from the blast overpressure/schockwave.

Answer:

v = 61.54 km/h

Explanation:

The average speed of the car can be found by using the total distance covered by the car and the total time taken for that distance to be traveled. Therefore, the average speed of the car can be found by the following formula:

[tex]v = \frac{d}{t}\\[/tex]

where,

v = average speed during the trip = ?

d = total distance driven by the car = 1200 km

t = time taken for the traveling = 19.5 hr

Therefore,

[tex]v = \frac{1200\ km}{19.5\ hr}\\\\[/tex]

v = 61.54 km/h

Answer:

0.75Hz

Explanation:

Given parameters:

Speed of the wave = 3m/s

Wavelength  = 4m

Unknown:

Frequency of the wave  = ?

Solution:

The speed of a wave is given by the expression below:

     Speed  = frequency x wavelength

  Frequency  = [tex]\frac{Speed }{Wavelength}[/tex]   = [tex]\frac{3}{4}[/tex]    = 0.75Hz

Answer:

The age of the organism is approximately 11460 years.

Explanation:

The amount of carbon-14 decays exponentially in time and is defined by the following equation:

[tex]\frac{n(t)}{n_{o}} = e^{-\frac{t}{\tau} }[/tex] (1)

Where:

[tex]n_{o}[/tex] - Initial amount of carbon-14.

[tex]n(t)[/tex] - Current amount of carbon-14.

[tex]t[/tex] - Time, measured in years.

[tex]\tau[/tex] - Time constant, measured in years.

Then, we clear the time within the formula:

[tex]t = -\tau \cdot \ln \frac{n(t)}{n_{o}}[/tex] (2)

In addition, time constant can be calculated by means of half-life of carbon-14 ([tex]t_{1/2}[/tex]), measured in years:

[tex]\tau = \frac{t_{1/2}}{\ln 2}[/tex]

If we know that [tex]\frac{n(t)}{n_{o}} = 0.25[/tex] and [tex]t_{1/2} = 5730\,yr[/tex], then the age of the organism is:

[tex]\tau = \frac{5730\,yr}{\ln 2}[/tex]

[tex]\tau \approx 8266.643\,yr[/tex]

[tex]t = -(8266.643\,yr)\cdot \ln 0.25[/tex]

[tex]t \approx 11460.001\,yr[/tex]

The age of the organism is approximately 11460 years.

Answer:

8

Explanation:

Answer:

I am not sure about this question sry but u can try asking a tutor u don't need to use any points

Answer:

a.) 20 km east

b.) 50 km west

c.) 80 km west

Explanation:

As given,

Railway station -     A            B              C

Distance(km) -       0            30             60

Starts from A , train reaches B be in 15 minutes

Starts from A , train reaches C be in 30 minutes

a.)

If A is origin

As train covers 30km = 15 minutes

⇒ 15 minutes = 30 km

    1 minute = [tex]\frac{30}{15} = 2[/tex] km

⇒ 10 minutes = 2×10 = 20 km

∴ we get

The position of the train moving from station A to station B after 10 minutes = 20 km east

b.)

If B is origin then , the position of  the train moving from station A to station B after 10 minutes = 30 + 20  = 50 km west

( Because B is the origin , so firstly train go from B to A in 15 minutes ( 30 km ) then A to B in 10 minutes (20 km) )

c.)

If C is the origin then , the position of  the train moving from station A to station B after 10 minutes = 60 + 20  = 80 km west

( Because C is the origin , so firstly train go from C to A in 30 minutes ( 60 km ) then A to B in 10 minutes (20 km) )

Answer:

I would say increasing the balls kinetic energy

Explanation:

Because she is moving the ball and increasing kinetic energy

Answer:

force gravitational attraction =18.69×10^-14

hope it helps.

Answer:

Answer:

b. Comfortable pair of athletic shoes.

Explanation:

Analyzing the information and the options, the fitness product that would most assist Sergio in reaching his weight loss goals would be the pair of comfortable sports shoes, which he could use to do running exercises.

For beginning practitioners it is ideal to start exercising with short 30-minute walks until the body adapts and you gain physical conditioning and endurance.

Running has the advantage of being an excellent exercise that can be practiced anywhere, and helps in the production of dopamine, which produces a feeling of well-being and also helps in reducing hunger, in addition to working and strengthening various muscle groups in the body, activate blood circulation, decrease anxiety, improve cholesterol levels, control blood pressure, etc.

Answer:

b. Comfortable pair of athletic shoes.

Explanation:

Answer:

true

Explanation:

If only internal forces are doing work (no work done by external forces), then there is no change in the total amount of mechanical energy. The total mechanical energy is said to be conserved. ... In these situations, the sum of the kinetic and potential energy is everywhere the same.

Answer:

351.05 kg * m/s

Explanation:

Combined momentum is denoted with this formula:

In other words, the combined momentum of two masses is the sum of their masses multiplied by their velocity.

Let m₁v₁ represent the brother's mass and velocity, and let m₂v₂ represent the skateboard's velocity.

List out the known variables:

Substitute the known values into the equation.

The combined momentum of the brother and his skateboard is 351.05 kg * m/s.

Answer:

The amount of potential energy stored in the magnetic field depends on both the strength of the magnet and the distance that another magnet or magnetic object is from it. ... All objects have a gravitational force, no matter how small, but only some objects such as iron objects can have a magnetic force.

Explanation:

The potential energy stored in the magnet/iron rod system is on the account of distance of each entities and the strength of magnets.

The given problem is based on the concept of potential energy stored in magnetic rod system.

Thus, we can conclude that the potential energy stored in the magnet/iron rod system is on the account of distance of each entities and the strength of magnets.

Learn more about the magnetic potential energy here:

https://brainly.com/question/21326707

Answer:

You've got the formula so when the multiplication is done (40,000,000×5)=200,000,000kg m/s

Answer:

The acceleration of the box is 2.05 m/s²

Explanation:

The given parameters of the motion of the box are;

The mass of the box, m = 50 kg

The pulling force, [tex]F_p[/tex] acting on the box = 200 N

The angle at which the force acts, θ = 30° above the horizontal

The coefficient of kinetic friction, [tex]\mu_k[/tex] = 0.25

The normal reaction from the box resting on a flat surface, N = The weight of the box, W - The vertical component of the pulling force, [tex]F_{py}[/tex]

N = W -  [tex]F_{py}[/tex] = m·g - [tex]F_p[/tex] × sin(θ)

Where;

g = The acceleration due to gravity = 9.8 m/s²

∴ N = W  - [tex]F_{py}[/tex] = m·g - [tex]F_p[/tex] × sin(θ) = 50 kg × 9.8 m/s² - 200 N × sin(30°)

∴ N = 490 N - 200 N × 0.5 = 390 N

The normal reaction, N = 390 N

The force of friction, [tex]F_f[/tex] = The coefficient of kinetic friction, [tex]\mu_k[/tex] × The normal reaction, N

∴ [tex]F_f[/tex] = [tex]\mu_k[/tex] × N = 0.25 × 390 N = 97.5 N

The net force, [tex]F_{NET}[/tex], acting on the block = The pulling force, [tex]F_p[/tex] - The friction force, [tex]F_f[/tex]

∴  [tex]F_{NET}[/tex] = [tex]F_p[/tex] - [tex]F_f[/tex] = 200 N - 97.5 N = 102.5 N

[tex]F_{NET}[/tex] = 102.5 N

According to Newton's second law of motion on the net force acting on an object, we have;

[tex]F_{NET}[/tex] = m × a

Where;

a = The acceleration of the box

∴ a = [tex]F_{NET}[/tex]/m = 102.5 N/(50 kg) = 2.05 m/s²

The acceleration of the box = a = 2.05 m/s².

Answer:

Distance-0

Displacement-0

Explanation:

She spun in place and fell in her exact placement she didnt move and distance or displace any area

Mali loves to make herself dizzy, so she spins in place 7 times at a particular place, then the distance and displacement will be equal to zero.

The complete movement of an object, regardless of direction, is referred to as a distance. The amount of ground a thing travels from its starting point to its destination is also referred to as distance. A distance can alternatively be thought of as a scalar quantity, meaning that it is independent of an object's motion's direction.

The term "displacement" simply describes how an object's location has changed. For instance, when an object travels from point A to point B, displacement has taken place. A vector quantity with both magnitude and direction is displacement.

Hence, distance and displacement covered by Mali will be zero.

To know more about distance and displacement :

https://brainly.com/question/3243551

#SPJ2

Answer:

b. the wire will become warmer

Explanation:

The change that will occur in the wire of an electrical circuit working properly is that the wire will become warmer.

The reason for this is that some of the electrical energy will be converted to heat or thermal energy.

Answer:

Nitrous oxide

Nitrous oxide, often called laughing gas, makes a serious impact on the Earth.

Answer:

Mass = 16.67kg

Explanation:

Given the following data;

Velocity = 4.5m/s

Momentum = 75kgm/s

To find the mass;

Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.

Mathematically, momentum is given by the formula;

Momentum = mass * velocity

Substituting into the equation, we have

75 = mass * 4.5

Mass = 75/4.5

Mass = 16.67kg

Therefore, the ball's mass is 16.67 kilograms.

The ball's mass will be "16.67 kg".

Momentum seems to be the product of a subatomic particle mass as well as the velocity. Momentum would be vector quantity, which means it does have a magnitude as well as an orientation.

In contrast, a particle's momentum seems to be a measurement it takes for a continuous force to bring that one to remainder.

According to the question,

Velocity = 4.5 m/s

Momentum = 75 kg.m/s

By using the formula,

→ Momentum = Mass × Velocity

or,

→           [tex]Mass = \frac{Momentum}{Velocity}[/tex]

By substituting the values,

                       [tex]= \frac{75}{4.5}[/tex]

                       [tex]= 16.67 \ kg[/tex]

Thus the above answer is right.

Find out more information about momentum here:

https://brainly.com/question/6391301

Answer:

kya faltu sawal h repetitive g=10N/kg