suppose that water waves coming back into a dock have a velocity of 2.1 m/s and a wavelength of 5.6 m. with what frequency do these waves meet the dock

Explanation:

I think it is the third image as marked in the diagram I kept above because as we know first class levers have the fulcrum between the force and the load

Answer: acceleration is when speed increase

Answer:

An orbit is a regular, repeating path that one object in space takes around another one. An object in an orbit is called a satellite. A satellite can be natural, like Earth or the moon. ...Planets, comets, asteroids and other objects in the solar system orbit the sun

Explanation:

Explanation:

Eardrum or tympanic membrane is your answer

Answer:

Inertia.

Explanation:

Inertia can be defined as the tendency of an object or a body to continue in its state of motion or remain at rest unless acted upon by an external force.

In physics, Sir Isaac Newton's first law of motion is known as law of inertia and it states that, an object or a physical body in motion will continue in its state of motion at continuous velocity (the same speed and direction) or, if at rest, will remain at rest unless acted upon by an external force.

For example, the inertia of an object such as a shopping cart is greatly dependent or influenced by its mass; the higher quantity of matter in a shopping cart, the greater will be its tendency to continuously remain at rest.

Answer:

2450 J

Explanation:

Given that,

A 50Kg girl jumps off a 5-meter-high diving board.

We need to find the kinetic energy of the girl before she hits the water. At this point the kinetic energy becomes equal to the potential energy such that,

\(K=mgh\\\\K=50\times 9.8\times 5\\\\K=2450\ J\)

So, her kinetic energy right before she hits the water is equal to 2450 J.

Assuming that air resistance is neglected, both the ping pong ball and the bowling ball will hit the ground at the same time.

This is because, according to the laws of physics, the acceleration of an object due to gravity is independent of its mass. Both the ping pong ball and the bowling ball will experience the same acceleration due to gravity as they fall, which is approximately 9.8 meters per second squared (9.8 m/s^2) near the surface of the Earth.

Since the acceleration due to gravity is the same for both balls, they will both accelerate at the same rate and therefore reach the ground at the same time, neglecting air resistance.

It's worth noting that in the presence of air resistance, the balls would experience a drag force that would slow them down and cause them to fall at different rates. However, if air resistance is neglected as stated in the question, then both balls will hit the ground at the same time.

Learn more about " gravity" : https://brainly.com/question/557206

#SPJ11

Answer:

3.0 W

I actually had this question before BUT I have no clue how to explain it. I haven't done this in so long. I apologize but that is the correct answer.

Answer:3.0 W

Explanation:

P=VI

P= (6.0 V) (5.0 A)

P= 3.0 W

stopping distance = 4.52m

stopping distance when speed is doubled = 18.09m

The stopping distance of a sled depends on several factors, including its initial speed, the surface on which it is sliding,

kinetic friction and the resistance provided by the sled's runners or skis.

The stopping distance of the sled can be found using the formula:

stopping distance = (initial speed^2)/(2*coefficient of kinetic friction*acceleration due to gravity)

(a) Plugging in the given values, we get:

stopping distance = (3.50^2)/(2*0.135*9.81) = 4.52 m

Therefore, the sled moves 4.52 meters before it comes to a complete stop.

(b) If the initial speed is doubled to 7.00 m/s, the stopping distance can be calculated as:

stopping distance = (7.00^2)/(2*0.135*9.81) = 18.09 m

Therefore, the stopping distance for the sled would be 18.09 meters if its initial speed is doubled.

This shows that the stopping distance increases significantly as the initial speed increases.

To learn more about Kinetic friction, visit:  https://brainly.com/question/30886698

#SPJ11

To calculate the average deceleration of the bus, we can use the following formula:

Here, the initial velocity (v1) is 60 km/h, the final velocity (v2) is 40 km/h, and the time taken (t) is 8 seconds. To make the units consistent, we'll convert the velocities from km/h to m/s.

Now, we can plug the values into the formula:

Now, we'll find a common denominator for the fractions and simplify:

So, the average deceleration of the bus is approximately -150/216 m/s².

The speed of the rock halfway down 17.3 m/s  (b) 19.4 m/s

To solve this problem, we can use the principles of conservation of energy to find the speed of the rock at different points during its fall.

First, we can calculate the potential energy of the rock when it is at the top of its fall:

PE = mgh = 1.50 kg ˣ 9.81 \(m/s^2\) ˣ 30 m = 441.45 J

Since there is no air resistance, this potential energy will be converted entirely into kinetic energy as the rock falls.

PE = KE

mgh = (1/2)\(mv^2\)

v = sqrt(2gh) = sqrt(2 ˣ 9.81 \(m/s^2\) ˣ 15 m) = 17.15 m/s

Therefore, the speed of the rock halfway down is 17.15 m/s.

so we can again set these two values equal to each other and solve for the speed:

PE = KE

mgh = (1/2)\(mv^2\)

v = sqrt(2gh) = sqrt(2 ˣ 9.81 \(m/s^2\) ˣ 30 m) = 19.42 m/s

Therefore, the speed of the rock when it reaches the ground is 19.42 m/s.

Learn more about halfway down

brainly.com/question/26809619

#SPJ11

Answer:

320,000J

Explanation:

mass=320,000J

Using the Standard population for region, the proportionate mortality for old people in region Y is 80%. The correct answer is option  (c).

To calculate the proportionate mortality, we need to determine the number of deaths among old people in region Y and divide it by the standard population for region Y.

According to the given options, option c is the correct answer, which states that the proportionate mortality is 48/60 = 80%.

This means that out of the standard population of 60 in region Y, 48 deaths occurred among old people. This indicates a high proportionate mortality rate for the elderly population in region Y, reflecting the impact on that age group's mortality in the region.

To know more about mortality rate, visit:

https://brainly.com/question/33487721

#SPJ11

Answer:

the wind speed is 39 right now

A

is to mutilpy to each other

When A car accelerates from 10 m/s to 22 m/s in 6 seconds, the average acceleration of the car is 2 m/s². Hence, option (D) is correct

Acceleration is the rate at which speed and direction of velocity vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates.

Even if the speed is constant, motion on a circle accelerates because the direction is always shifting. Both effects contribute to the acceleration for all other motions.

Initial speed of the car = 10 m/s.

Final speed of the car = 22 m/s.

Time internal = 6 seconds.

The average acceleration of the car is = change in speed/time interval

= (final speed - initial speed)/time interval

= (22 m/s - 10 m/s)/6 seconds

= 12 m/s / 6 seconds

= 2 m/s²

Hence, the average acceleration of the car is  2 m/s².

Learn more about acceleration here:

brainly.com/question/12550364

#SPJ2

Answer:

Rome became the most powerful state in the world by the first century BCE through a combination of military power, political flexibility, economic expansion, and more than a bit of good luck. This expansion changed the Mediterranean world and also changed Rome itself.

Explanation:

Terminal velocity of the package is 5.16 m/s

When the object's drag force is equal to the gravitational force then it experiences zero acceleration and so the velocity remains constant. Such constant velocity is called as terminal velocity.

Drag force is a kind of frictional force that opposes the flow of motion.

Mathematically drag force F = \(\frac{1}{2}\)ρA\(v^{2}\)

ρ = density of the package = 1.2 kg/\(m^{3}\)

A = 25 \(m^{2}\)

v = terminal speed

Also Force is the product of mass and acceleration

Mathematically F = ma

where

m = 44 kg

a = 10 m/\(s^{2}\)

Therefore, F = 44 * 10 = 400 N

Putting value of F in the drag force equation we get,

400 =  \(\frac{1}{2}\)ρA\(v^{2}\)

400 =  \(\frac{1}{2}\) * 1.2 * 25 * \(v^{2}\)

\(v^{2} = \frac{400*2}{1.2 * 25}\)

\(v^{2} = \frac{800}{30}\)

v = \(\sqrt{26.66}\)

v = 5.16 m/s

The terminal speed of the package if the parachute has an area of 25 \(m^{2}\) is 5.16 m/s.

To know more about Terminal velocity,

https://brainly.com/question/26955831

#SPJ1

Ocean drilling cores have been used to confirm the age of the oldest oceanic crust, which was formed about missing years ago.

An electric charge, an electric current, and magnetic materials are all affected magnetically by a magnetic field, which is a vector field. A force perpendicular to the magnetic field and its own velocity acts on a moving charge in a magnetic field.

Because it shields the planet from dangerous radiations such solar winds, which have high radiation levels, the magnetic field of the Earth is crucial. The sun's solar energy includes solar winds.

Learn more about Magnetic field here:

https://brainly.com/question/14411049

#SPJ4

Answer: 90Kg

Explanation:

The mass of air hitting the sail each second can be calculated as:

mass of air = density of air * volume of air

The volume of air hitting the sail can be calculated as:

volume of air = area of sail * velocity of wind * time

Here, the area of sail is given as 3.8 m², the velocity of wind is 20 ms^-1, and the time is 1 second (since we want to calculate the mass of air hitting the sail each second).

Therefore,

volume of air = 3.8 m² * 20 ms^-1 * 1 s = 76 m³

Using the given density of air of 1.2 kg m^-3, we can calculate the mass of air hitting the sail each second as:

mass of air = 1.2 kg m^-3 * 76 m³ = 91.2 kg

Therefore, the mass of air hitting the sail each second is approximately 90 kg.

Answer:

The action that would cause the concentration of a solution to remain constant is removing solution from the container.

What is concentration of a solution?

The concentration of a solution is the measure of the amount of solid particles (solute) that has been dissolved in the given amount of a solvent.

Adding water to a solution will dilute the solution, hence changes the concentration of the solution.

Also, adding solute will change the concentration of the solution.

Thus, the action that would cause the concentration of a solution to remain constant is removing solution from the container.

Paki-brainliest po:) #CarryOnLearning

The event horizon is directly related to the mass of the black hole, with larger black holes having larger event horizons.

What is Black Hole?

A black hole is an astronomical object that has collapsed to such a small size that its gravitational pull is so strong that nothing, not even light, can escape it. Black holes are formed from the remnants of massive stars that have run out of fuel and undergone a catastrophic collapse, or from the merging of two or more smaller black holes.

M87 and Ton 618 are both supermassive black holes, with masses estimated to be around 6.5 billion and 66 billion times the mass of the Sun, respectively. However, the size of their event horizons would depend not only on their mass but also on their spin and the density of the surrounding matter. It is therefore not possible to predict which black hole would be bigger without additional data and calculations.

It is worth noting that the first image of a black hole that was released in 2019 was actually an image of the event horizon of the black hole in M87, not the black hole itself. The event horizon of M87's black hole was estimated to be around 40 billion km in diameter, which is larger than the entire solar system.

Learn more about Black Hole from given link

https://brainly.com/question/6037502

#SPJ1

Answer:

we are going to focus on just a few. • Heat energy ( Thermal). • Mechanical energy. • Light (Radiant) energy. • Electrical energy. • Sound energy. • Chemical energy

Rahul should change the lengths of the vectors that point tangent to the circle so that each is the same length.

Uniform Circular Motion:

A uniform circular motion is a motion in a circle where the tangential speed of the object is constant.

In the motion map:

In this motion map,  the length of the vectors pointing tangent to the circle is not constant: this means that the speed is not constant. In order to have a uniform circular motion, the speed must be constant, therefore the lengths of the vectors that point tangent to the circle must be the same.

Thus, we can conclude that Rahul should change the lengths of the vectors that point tangent to the circle so that each is the same length.

learn more about the vectors here:

https://brainly.com/question/13188123

First, let's draw a lens and a ray that has the given characteristics:

If the ray strikes in parallel and then diverges from the axis of the lens, that means we have a divergent ray.

Therefore the correct option is A.

The resultant displacement of the members of the bicycle club is A, 0.8 km South.

To find the resultant displacement, add the four displacement vectors together. The resultant displacement vector is:

R = A + B + C + D

R = (2.0 km, west) + (1.6 km, north) + (2.0 km, east) + (2.4 km, south)

R = 0.8 km, south

Add the x-components of the displacement vectors. 2.0 km + (-2.0 km) = 0 km.

Add the y-components of the displacement vectors. 1.6 km + (-2.4 km) = -0.8 km.

Find the magnitude of the resultant displacement vector.

R = √(0² + (-0.8)²) = 0.8 km

Find the direction of the resultant displacement vector.

θ = arctan(-0.8/0) = 90° south of east

Therefore, the resultant displacement of the members of the bicycle club is 0.8 km South.

Find out more on resultant displacement here: https://brainly.com/question/13309193

#SPJ4

Complete question:

5.Four members of the Main Street Bicycle Club meet at a certain

intersection on Main Street. The members then start from the same

location but travel in different directions. A short time later, displacement

vectors for the four members are:

A = 2 km W

B = 1.6 km N

C = 2.0 km E

D = 2.4 km S​

what is the resultant displacement R of the members of the bicycle club:

R= A + B + C + D?

a. 0.8 km S

b. 0.4 km 450 SE

c. 3.6 km 370 NW

d. 4 km S

The best way to calculate the volume of a log with a serious defect is to calculate the volume of the defect and subtract it from the total volume of the log which is denoted as option C.

This is referred to as the amount of space occupied by any three-dimensional solid which could be a square, rectangle etc.

In a scenario where a defect is present in the log, then it is  best to consider it by first calculating the volume of the defect after which it is then subtracted from the total volume of the log in other to give an accurate result.

Read more about Volume here https://brainly.com/question/23963432

#SPJ1

The conical pendulum has a string that is 50.0 cm long and the mass of the bob is 0.25 kg. The angle between the string and the horizontal when the tension in the string is six times the weight of the bob is: 1.77 radians,

and under those conditions, the period of the pendulum is: 0.74 seconds.

When the tension in the string is six times the weight of the bob, the angle between the string and the horizontal can be calculated using the formula:

angle = (6 × 0.25 kg × 9.81 m/s²) / (0.5 m ×  T),

where T is the tension in the string. Using this formula, the angle between the string and the horizontal is approximately 1.77 radians.

The period of a conical pendulum is calculated using the formula: Period = 2π√L/g, where L is the length of the string and g is the acceleration due to gravity. In this case, the period of the pendulum is approximately 0.74 seconds.

In summary, when the tension in the string of a conical pendulum is six times the weight of the bob, the angle between the string and the horizontal is approximately 1.77 radians and the period of the pendulum is approximately 0.74 seconds.

To know more about tension refer here:

https://brainly.com/question/5282993#

#SPJ11