If an ocean wave has a frequency of 2 waves/s and a speed of
4 m/s, what is its wavelength?
Enter the answer​

"Displacement" is the distance and direction between the start-point and the end-point, regardless of the route taken on the way.

From this definition, it's easy to see that the bee's displacement at the end of the adventure is zero.

The bee's distance and average speed could also be calculated using the given information, but are not requested.

The total displacement of the bee is calculated by subtracting the return displacement from the forward displacement, resulting in a total displacement of 41.4 meters in the direction of the initial forward flight.

To calculate the total displacement of the bee, we need to consider the distance traveled in each direction and then sum these distances, taking into account the direction of travel. Initially, the bee flies forward at 4.9m/s for 48s, and then it returns along its previous route at 5.1m/s for 38s.

First, we calculate the forward displacement:
4.9m/s * 48s = 235.2m

Then, the return displacement:
5.1m/s * 38s = 193.8m

Since displacement is a vector quantity, we must consider the direction. The total displacement would be the forward displacement minus the return displacement because the bee returns along its previous route.

Total displacement = 235.2m - 193.8m = 41.4m

Therefore, the total displacement of the bee, rounded to the nearest thousandth if necessary, is 41.4m in the direction of the initial forward flight.

Answer:

Yes, dimensionally the equation is correct.

Explanation:

This equation is the kinematic equation for uniformly accelerated motion, then we study the units of each member to conclude whether it is dimensionally correct.

vi = initial velocity [m/s]

a = acceleration [m/s^2]

t = time [s]

v = final velocity

therefore we have:

[m/s] + [m/s^2]*[t^2], the second term now is m/s

[m/s]  + [m/s] = [m/s]

So the analysis is correct.

Answer:

80km/h

Explanation:

Average speed = distance/time

Given

Distance = 240km

Time = 3 hours

speed = 240km/3hrs

= 80km/h

Answer:

Net force needed to accelerate the skier is 136 N

Explanation:

As per Newton's 2nd law we know that net force on the system is product of mass and its acceleration

here we know that

m = 34 kg

[tex]a = 4 m/s^2[/tex]

so we have

F = ma

[tex]F = 34 \times 4[/tex]

[tex]F = 136 N[/tex]

The mechanical advantage of an inclined plane can be calculated using the formula: MA = length of incline / height of incline. For example, if the length of the incline is 10 meters and the height of the incline is 2 meters, then the mechanical advantage would be 5.

The mechanical advantage of an inclined plane can be calculated using the formula:

Mechanical Advantage (MA) = length of incline / height of incline

In the case of a brick on an inclined plane, the length of the incline would be the distance along the surface of the plane and the height of the incline would be the vertical distance from the base of the incline to the top.

For example, if the length of the incline is 10 meters and the height of the incline is 2 meters, then the mechanical advantage would be 10 / 2 = 5.

https://brainly.com/question/14490987

#SPJ12

The mechanical advantage of an inclined plane can be calculated using the length and height of the incline, which tells us how much the plane multiplies the effort force, simplifying tasks like lifting heavy objects.

To calculate the mechanical advantage (MA) of an inclined plane, you can use the formula MA = Length of Incline / Height of Incline. The mechanical advantage tells you how much the inclined plane multiplies the effort force, allowing you to overcome the weight of the object with less force. This efficiency is due to the larger distance over which the force is applied when using the inclined plane as compared to lifting the object straight up.

The ideal mechanical advantage (IMA) is the theoretical maximum mechanical advantage you could get from an inclined plane if there were no energy losses due to friction. In reality, the actual mechanical advantage will be less than the ideal mechanical advantage because of frictional forces.

Applying this concept, pushing a brick up an inclined plane requires less force than lifting it vertically because the weight of the brick is distributed over a longer distance. The inclined plane, a simple machine, reduces the effort needed to raise the brick, similar to how ancient civilizations like the Egyptians used ramps to lift heavy blocks during pyramid construction.

https://brainly.com/question/14490987

#SPJ3

Answer: a= 50 m/s²

Explanation: Acceleration is force per unit mass.

a= F/ m

= 10 N / 0.2 kg

= 50 m/s²

Answer:

speed is defined as distance travelled per unit time

Answer: Speed is the measure of how fast an object is moving.

Explanation: Speed is expressed as the ratio of the distance travelled per unit time.

Answer:

2.5m/s2

Explanation:

The following were obtained from the question:

F = 600N

M = 240 kg

a =?

Recall: F = Ma

a = F/M

a = 600/240

a = 2.5m/s2

Therefore, the acceleration of the motorcycle is 2.5m/s2

Answer:

Explanation:

force(f)=600N

Mass(m)=240kg

Acceleration(a)=?

Acceleration=force/mass

Acceleration=600/240

Acceleration=2.5m/s^2

Answer:

The atomic number is the number of protons in an atom's nucleus.

The atomic number is important, because it determines which element an atom is.

Answer:

Explanation:

It is the number of protons in the nucleus which determines all the characteristics of the atom and its place on the periodic table

Answer:

      [tex]\large\boxed{\large\boxed{70.6\º}}[/tex]

Explanation:

1. Calculate the scalar product using the coordinates

   [tex]A\cdot B=(3.0\hat i-4.0\hat j+0\hat k)\cdot (-2.0\hat i+0\hat j+3.0\hat k)\\\\A\cdot B=(3)(-2)+(-4)(0)+(0)(3)=-6[/tex]

2. Write the scalar product using the cosine of the angle

     [tex]A\cdot B=|A|\cdot |B|\cdot cos\theta[/tex]

                    [tex]|A|=\sqrt{(3.0)^2+(-4.0)^2}=\sqrt{9.0+16.}=5.0[/tex]

                     [tex]|B|=\sqrt{(-2.0)^2+(3.0)^2}=\sqrt{4.0+9.0}=\sqrt{13.0}[/tex]

3. Equal the two scalar products and solve for cos(θ)

           [tex]-6.0=(5.0)(\sqrt{13.0})cos\theta\\\\cos\theta=0.3328\\\\\theta = arccos(0.3328)=70.6\º[/tex]

Answer:

E = 7231.2 [kWh]

Explanation:

All systems that produce work in the mechanical form of movement or heat, they have an efficiency that depends on the construction technology, ideally in each of these equipments is that their efficiencies are as high as possible, that is, its efficiency is close to 100%. For this case we have an equipment with 60% efficiency, this heating system is characterized since of the 12,052 kWh, it uses 60% of this value only to heat the house, the rest of energy is known as lost.

E = 12,052 * (60/100)

E = 7231.2 [kWh]

This amount of energy 7231.2 [kWh] is used for heating purposes.

Answer:

Mechanical waves

Explanation:

Waves are periodic oscillations, that carry energy, but not matter.

Waves are classified into two types:

- Mechanical waves: these waves are produced by the oscillations of the particles in a medium, which can oscillate along the  direction of propagation of the wave (longitudinal wave) or perpendicular to the direction of motion of the wave (transverse wave). These waves can only propagate in a medium, so they cannot travel in a vacuum. Examples of mechanical waves are sound waves.

- Electromagnetic waves: these waves are produced by the oscillations of electric and magnetic field. They are transverse waves. They are the only type of wave able to propagate through a vacuum (so, through space).

Therefore, the waves that need molecules in order to transfer energy are mechanical waves.

Answer:Plant Cells have big Vacouls whereas Animal cell have small Vacouls. Plant Cell have cell wall and cell membranes but animal cell has got cell membranes only. Plants cell has Chloroplast and whereas in animal cell it's absent. Plastids absent in animal cell and present in plant cell.

Explanation:

Answer:

Soft  bumpy   smooth

Explanation:

Answer:

C. Prediction

Explanation:

A guess made about the results of an experiment is a called a prediction.

Prediction is the probability that an event will occur or not.

Answer:

Yes

Explanation:

The work done on a body relies upon the force, displacement, and the angle made between the force and the displacement.

Here, the force acting on the barbell is vertically downwards while the vertical displacement is in the upward direction. The angle made between the force (weight) and the displacement is [tex]180^{\circ}.[/tex] Thus, a work will be done on the barbell by its weight.

The work done on a body relies upon the force, displacement, and the angle made between the force and the displacement.

What is force?

A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is body with some mass than there is force.

Work in physics is the energy that is transferred to or from an item when a force is applied along a displacement. In its simplest form, it equals the product of the force's magnitude and the distance traveled for a constant force directed in the direction of motion.

Here, the force acting on the barbell is vertically downwards while the vertical displacement is in the upward direction. The angle made between the force (weight) and the displacement.

Thus, a work will be done on the barbell by its weight.

To learn more about force refer to the link:

brainly.com/question/13191643

 #SPJ2

Jumping on a trampoline is a classic example of conservation of energy, from potential into kinetic. It also shows Hooke's laws and the spring constant. Furthermore, it verifies and illustrates each of Newton's three laws of motion.

Explanation

When we jump on a trampoline, our body has kinetic energy that changes over time. Our kinetic energy is greatest, just before we hit the trampoline on the way down and when you leave the trampoline surface on the way up. Our kinetic energy is 0 when you reach the height of your jump and begin to descend and when are on the trampoline, about to propel upwards.

Potential energy changes along with kinetic energy. At any time, your total energy is equal to your potential energy plus your kinetic energy. As we go up, the kinetic energy converts into potential energy.

Hooke's law is another form of potential energy. Just as the trampoline is about to propel us up, your kinetic energy is 0 but your potential energy is maximized, even though we are at a minimum height. This is because our potential energy is related to the spring constant and Hooke's Law.

369 kg

Explanation:

Step 1:

We know that the expression for potential energy is

PE = mgh

where, m =Mass

            g = Acceleration due to gravity

            h Height

Step 2:

Here m = ?

         PE = 108486

         h = 30 m

          g = 9.8 ms⁻²

108486 = [tex]30 * 9.86 * m[/tex]

[tex]m= 108486 / (9.8*30) = 369 kg[/tex]

Answer:

The correct answer is D!

Explanation:

I got it wrong when I put C.

The flame will allow the water to evaporate and be collected in its pure form, leaving the salt component behind. This is known as distillation. Hence, option (D) is correct.

A separation process called distillation is used to remove the solvent-containing liquid from a combination and retain the liquid portion. Boiling the solution and then cooling it causes the vapor to condense back into a liquid during distillation.

We can distil salt water to get pure water that is safe to drink. To accomplish this, take the following actions:

Learn more about distillation here:

https://brainly.com/question/29037176

#SPJ2

Answer:

Battery will run for t = 90 s

Explanation:

As we know that rate of flow of charge is known as electric current

So we will have

[tex]i = \frac{Q}{t}[/tex]

[tex]i = 0.11 A[/tex]

[tex]Q = 10 C[/tex]

now we have

[tex]t = \frac{Q}{i}[/tex]

[tex]t = \frac{10}{0.11}[/tex]

[tex]t = 90 s[/tex]

Final answer:

A flashlight that draws 0.11 amps can run for about 90.91 seconds on a battery with 10 coulombs of charge.

Explanation:

To calculate how long a flashlight can run with a given amount of charge, we use the relationship between current, charge, and time. Current (I) is the rate of flow of charge over time (Q), represented by the formula I = Q/t, where t is the time in seconds. Given the flashlight draws 0.11 amps (A) and the battery has a charge of 10 coulombs (C), we can rearrange the formula to solve for time: t = Q/I. Therefore, t = 10 C / 0.11 A, which equals approximately 90.91 seconds. Therefore, the flashlight can run for about 90.91 seconds on a battery with 10 coulombs of charge.

Answer:

brand name, or company

Explanation:

a brand name is  the kind of product they are selling. a company is the group of peaple that wok together.

Answer: maker or producer

Explanations:

Gravity acts more strongly on the object.

Explanation:

When an object is dropped from a height, it reaches the ground despite friction acting on it because the force of gravity acting on it is stronger than the air resistance and friction. Air resistance and friction acts upward and prevents the ball from falling. However, it is negligible. The gravity acting on the object is so strong that it pulls the object towards earth with a constant acceleration called as acceleration due to gravity which has a constant value of 9.8m/s².

Answer:

C. scientists possess varied talents and interests.

Explanation:

The above passage suggests clearly that often times, scientists possess varied talents and interests.

Cases were made of  Abū Rayhān al-Bīrūnī and Robert Hooke. Both were scientists and had the same time had interests in other disciplines.

Therefore, we can argue that the tone set by the author conveys a clear focal point that often times, scientists possess varied talents and interests.

Answer:

c

Explanation:

Answer:

4.3 L

Explanation:

Ideal gas law:

PV = nRT

Rearrange:

V / T = nR / P

Since n, R, and P are constant:

V₁ / T₁ = V₂ / T₂

Plug in values and solve:

(3.5 L) / (25 + 273.15 K) = V / (95 + 273.15 K)

V = 4.3 L

Answer:

Force due to gravity increases on increasing the masses and decreases on decreasing the masses.  

Explanation:

The force due to gravity (F) acting between any two given bodies can be expressed as,

[tex]F = G\frac{m_{1} m_{2}}{r^{2}}[/tex]

Here,

G = gravitational constant

[tex]m_{1}[/tex] = mass of the first body

[tex]m_{2}[/tex] = mass of the second body

[tex]r =[/tex] separation between the bodies

It is clear from the above expression that the force due to gravity acting between the two bodies is directly proportional to the product of the masses of the bodies.

it is a transverse wave

A transverse wave is the one that sets the particles of medium into oscillations perpendicular to the direction of wave propagation. So yes, a transverse wave needs a materialistic medium to propagatee.

Examples of transverse waves include:

ripples on the surface of water.

vibrations in a guitar string.

a Mexican wave in a sports stadium.

electromagnetic waves – eg light waves, microwaves, radio waves.

transverse waves require a material medium and propogate by means of vibrations of the medium perpendicular to the direction of travel. ... Electromagnetic (EM) waves (such as light) are also transverse waves but they do not require a medium and thus can pass through a vacuum

Answer:

5 m/s2, left

Explanation:

We can solve the problem by applying Newton's second law of motion, which  states that:

[tex]\sum F=ma[/tex]

where:

[tex]\sum F[/tex] is the net force acting on an object

m is the mass of the object

a is its acceleration

In this problem, we have:

[tex]\sum F=30 N - 20 N = 10 N[/tex] (to the left) is the net force on the object

m = 2.0 kg is the mass

So, the acceleration is:

[tex]a=\frac{\sum F}{m}=\frac{10}{2.0}=5.0 m/s^2[/tex]

in the same direction as the force (left).

Answer:

The air resistance on the skydiver is 68.6 N

Explanation:

When the skydiver is falling down, there are two forces acting on him:

- The force of gravity, of magnitude [tex]mg[/tex], in the downward direction (where m is the mass of the skydiver and g is the acceleration due to gravity)

- The air resistance, [tex]R[/tex], in the upward direction

So the net force on the skydiver is:

[tex]F=mg-R[/tex]

where

m = 7.0 kg is the mass

[tex]g=9.8 m/s^2[/tex]

According to Newton's second law of motion, the net force on a body is equal to the product between its mass and its acceleration (a):

[tex]F=ma[/tex]

In this problem, however, the skydiver is moving with constant velocity, so his acceleration is zero:

[tex]a=0[/tex]

Therefore the net force is zero:

[tex]F=0[/tex]

And so, we have:

[tex]mg-R=0[/tex]

And so we can find the magnitude of the air resistance, which is equal to the force of gravity:

[tex]R=mg=(7.0)(9.8)=68.6 N[/tex]

The new speed of 22 kg block is 1.57 m/s

Explanation:

Given-

Mass, [tex]m_{1}[/tex]= 22 kg

speed, [tex]v_{1}[/tex] = 5 m/s

[tex]m_{2}[/tex] = 29 kg

[tex]v_{2i[/tex] = 4.6 m/s

New speed of [tex]m_{2}[/tex], [tex]v_{2f}[/tex] = 7.2 m/s

New speed of [tex]m_{1}[/tex], [tex]v_{1f}[/tex] = ?

This is the case of elastic collision.

So,

[tex]M_{1}[/tex] X  [tex]V_{1i}[/tex]+ [tex]M_{2}[/tex] X [tex]V_{2i}[/tex] = [tex]M_{1}[/tex] X [tex]V_{1f}[/tex] + [tex]M_{2}[/tex] X [tex]V_{2f}[/tex]

22 X 5 + 29 X 4.6 = 22 X[tex]V_{1f}[/tex] + 29 X 7.2

22 [tex]V_{1f}[/tex] + 208.8 = 243.4

22 [tex]V_{1f}[/tex]= 34.6

[tex]V_{1f}[/tex]= 1.57 m/s

Therefore, the new speed of 22 kg block is 1.57 m/s

Answer:

An electromagnet is a magnet that runs on electricity. Unlike a permanent magnet, the strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. The poles of an electromagnet can even be reversed by reversing the flow of electricity.

Answer:

solenoid & metal

Explanation: