A diver runs toward the edge of the cliff in Tobermory. This cliff is 44 m high (top of cliff to water level). They dive out, horizontally, at a velocity of 1.8 m/s [forward]. The sign below was posted for a reason. There is a section of rock right under the rough water extending from the cliff out for 4 m, as shown below. Does the diver hit the hidden rocks?

Answers

Answer 1

This question involves the concepts of the equations of motion for both the vertical motion and the horizontal motion.

The diver "does not" hit the rock.

First, we will calculate the time taken by the diver to land. For this purpose, we will use the second equation of motion for the vertical motion of the diver:

[tex]h = v_{iy}t+\frac{1}{2}gt^2[/tex]

where,

h = height of cliff = 44 m

[tex]v_{iy}[/tex] = vertical component of the initial velocity of the diver = 0 m/s

t = time taken to land = ?

g = acceleration due to gravity = 9.81 m/s²

Therefore,

[tex]44\ m=(0\ m/s)t+\frac{1}{2}(9.81\ m/s^2)(t)^2\\\\t = \sqrt{\frac{(44\ m)(2)}{9.81\ m/s^2}}[/tex]

t = 3 s

Now, we will calculate the horizontal distance where the diver landed. For this purpose, we will use the equation of motion for the horizontal motion of the diver. Assuming the air resistance to be zero the horizontal motion will be uniform. Hence:

[tex]s = vt\\s = (1.8\ m/s)(3\ s)\\[/tex]

s = 5.4 m

Since the section of the rock was 4 m away from the cliff. Hence, the diver crossed that rock section and safely laded at a distance of 5.4 m, which is 1.4 m ahead of the rock section.

Learn more about equations of motion here:

brainly.com/question/20594939?referrer=searchResults

The attached picture shows the equations of motion for the horizontal motion and vertical motion.

A Diver Runs Toward The Edge Of The Cliff In Tobermory. This Cliff Is 44 M High (top Of Cliff To Water

Related Questions

You need to exercise your body in the same what that you are going to use it.

Answers

Answer:

mjm

Explanation:

What happens to most bones when we break theAlways include the steps and/or background required to get to the final answer. Let’s help other people understand and solve future problems on their own.

I don't understand this QUESTION​

Answers

This electric force calculator will enable you to determine the repulsive or attractive force between two static charged particles. Continue reading to get a better understanding of Coulomb's law, the conditions of its validity, and the physical interpretation of the obtained result.

How to use Coulomb's law

Coulomb's law, otherwise known as Coulomb's inverse-square law, describes the electrostatic force acting between two charges. The force acts along the shortest line that joins the charges. It is repulsive if both charges have the same sign and attractive if they have opposite signs.

Coulomb's law is formulated as follows:

F = keq₁q₂/r²

where:

F is the electrostatic force between charges (in Newtons),

q₁ is the magnitude of the first charge (in Coulombs),

q₂ is the magnitude of the second charge (in Coulombs),

r is the shortest distance between the charges (in m),

ke is the Coulomb's constant. It is equal to 8.98755 × 10⁹ N·m²/C². This value is already embedded in the calculator - you don't have to remember it :)

Simply input any three values

To improve your flexibility you can do which of the following

Answers

Answer:

Stretching

Explanation:

Stretching is a great way to improve your flexibility!

A 1,336 kg car drives around a flat 199-m-diameter circular track at 22 m/s. What is the
magnitude of the net force on the car?

Answers

Hi there!

This is an example of Uniform Circular Motion, thus:

Net Force = Centripetal force

∑F = mv²/r

Plug in the given values. Remember to convert from diameter to radius, first.

d = 199m

r = d/2 = 199/2 = 99.5 m

∑F = 1336(22²)/99.5 = 6498.73 N

Demarcus launches a small weight into the air. The weight takes 6.4 seconds to reach the ground again. At what time did the weight have a vertical velocity of 0 meters per second?

Answers

The answer is A.
During the process, the only force imposed on the small weight is gravity.
The time from launching to the highest is the same as the time from the highest to the ground. And the vertical velocity at 0 m/s is at the highest position.

What experiment determines the upper fixed point of a liquid in a glass thermometer

Answers

Explanation:

A flask is half filled with water and heated until the water starts boiling.A thermometer is clamped inside the flask without letting it be in contact with waterThe thermometer is left in the steam such that the bulb is heated by the steam at standard atmospheric pressure.As the bulb is heated, the mercury thread rises up and ehre it remains steady for sometime is marked with a light scratch as the upper fixed point

(Add diagram )

Q1. A 130 N horizontal force keeps a 30 kg chair moving at a constant velocity. Find the
coefficient of kinetic friction between the chair and the floor.

Answers

The coefficient of kinetic friction between the chair and the floor is 0.442.

The given parameters;

horizontal force on the chair, F = 130 Nmass of the chair, m = 30 kg

The normal force on the chair is calculated as follows;

Fₙ = mg

Fₙ = 30 x 9.8 = 294 N

The frictional force between the chair and the floor is calculated as follows;

Fk = μFₙ

The net force on the chair is calculated as follows;

[tex]\Sigma F_x = 0\\\\F- \mu_k F_n = 0\\\\130 - \mu_k (294) = 0\\\\\mu_k = \frac{130}{294} \\\\\mu_k = 0.442[/tex]

Thus, the coefficient of kinetic friction between the chair and the floor is 0.442.

Learn more here:https://brainly.com/question/20241845

Can someone help me pls

Sorry if the photo is rubbish

Answers

Answer:

F

Explanation:

F is not a molecule, a molecule contains two or more cells. But F stands for fluorine, which I think is a singular cell.

Sarah decelerates from 30 to 10m/s over a distance of 5m. What is her acceleration? ​

Answers

The change in velocity is v – u, which is 30 – 10 = 20 m/s.

The acceleration is the change in velocity ÷ time, which is 20 m/s ÷ 4 s = 5 m/s2.

How to do this question plz answer ​

Answers

Explanation:

(i)

An analog signal has some feature that is a continuous function of the program material being transmitted. It may take on any of a range of values.

In radio, amplitude, frequency, or phase are features of the radio signal commonly modulated when transmitting an analog signal.

__

(ii)

A digital signal has some feature that is a discrete function of the program material being transmitted. It may take on any of a specific set of values.

A digital radio signal typically uses some combination of amplitude, frequency, and phase to represent a discrete state being transmitted. Only specific values of these are used by the transmitter.

(The receiver generally has to deal with corruption of the signal by the transmission channel, so the received set of values may not correlate well with those intended at the transmitter. This is why error-correcting codes are often used with digital signal transmission.)

_____

Additional comment

Analog radio signals are generally transmitted using a carrier wave at a specific frequency (or in some specific frequency range, in the case of frequency modulation). Processing techniques may be used at the transmitter to limit the bandwidth used in the transmission. One commonly-used technique is to limit the transmitted spectrum to one side of the carrier wave frequency. (This is called "single side-band" radio.)

Digital signals offer the opportunity to transmit different bits of the information at different frequencies. Sometimes, "frequency hopping" is used, so that the transmitted carrier wave jumps around from one frequency to another in a predetermined pattern. The effect of this is to spread out the spectrum of the transmitted signal so that average power in any frequency band is significantly reduced. In fact, it may be indistinguishable from background noise, except by a receiver that tunes to the carrier wave in the predetermined frequency pattern.

explain how siphon works with atmospheric pressure?​

Answers

Answer:

A siphon is a tube that allows liquid to travel upward, above the surface of the origin reservoir, then downwards to a lower level without using a pump. When a certain amount of water moves over the bend in the siphon, gravity pulls it down on the longer leg lowers the atmospheric pressure in the bend of the siphon.

Mark me as brainlest, please?

Explanation:

People who are exceptionally tall (like seven feet and over) often have a disorder that causes them to keep growing past the age most people do in their late teens. What gland would this disorder be associated with?
A.
adrenal
B.
thyroid
C.
pituitary
D.
pancreas

Answers

Answer:

C is the answer

Explanation:

The pituitary gland also known as the Master gland controls and regulates secretion of most hormones, when taller people usually grow past expected height this is normally due to the Pituitary gland not properly regulating and it secretes too many growth hormones causing "gigantism."

Which force is making a difference in the weight of each person?


A

applied

B

gravitational

C

normal

D

tension

Answers

The force is different because of the amount of weight applied so the answer is A

The force that makes a difference in the weight of each person is Gravitational. Correct option is B.

Gravitational force is a fundamental force of nature that exists between any two objects with mass. It's the force that keeps us and everything else on Earth anchored to its surface. This force is proportional to the mass of the objects involved and inversely proportional to the square of the distance between them.

For example, if you were standing on a bathroom scale, the reading on the scale represents the force of the Earth's gravity acting on your body, which is why it's often referred to as your "weight." The actual mass of an object remains constant regardless of its location, but its weight can vary depending on the strength of the gravitational field at different locations (e.g., the weight on the Moon would be less than on Earth due to the Moon's weaker gravitational pull).

To know more about Gravitational:
https://brainly.com/question/3009841

#SPJ3

An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left, and then 6 units to the
right. What is the displacement of the object?
O1
O 5
O 7
O 13

Answers

5 :) make a number line it helps
The answer is 5! Hope this helps

how can you reduce the percentage uncertainty in measurements that you make?​

Answers

Answer:

For example, one method for estimating the length of time it takes something to occur is to time it once using a stopwatch. You can reduce the uncertainty in this estimate by repeating the measurement and taking the average.

There are a lot of way to reduce the uncertainty however with real life sciences like quantum mechanics it will reveal more about the world and life if we have better measuring tools. Being precise is essential to understanding many parts of life.

Hope this helped! Have a great day!!!

As shown above an adhesive has been applied to contacting faces of two blocks so that the blocks interact with an adhesive force that has a magnitude, Fadhesion A tension, T, is exerted by a wire attached to the upper blocks causing the blocks to remain at rest The two blocks have weights, Wbottom and Wtop. Which of the following must be true? (1 point) ♡ O Wtop=T OT = Wtop - Fadhesion O Wbottom Fadhesion O T = Wbottom + Wtop + Fadhesion​

Answers

The magnitude of the adhesive force allows the top block to remain

attached to the bottom when the blocks and the wire are balanced.

The option that must be true is; [tex]\mathbf{W_{bottom} = F_{adhesion}}[/tex]

Reason:

The tension exerted by the wire attached to the top block = T

Magnitude of the adhesive = [tex]F_{adhesion}[/tex]

Weight of the top block = [tex]W_{top}[/tex]

Weight of the bottom block = [tex]W_{bottom}[/tex]

Given that with the exertion of the tension, the two blocks remain at rest, we have;

T =  [tex]W_{top}[/tex] + [tex]W_{bottom}[/tex]

The adhesive causes the bottom block to remain attached to the top block, we have;

Therefore, the magnitude of the adhesive force adds the bottom weight, to the top, weight, which gives;

The magnitude of the adhesive force = The weight of the bottom block

Therefore;

[tex]W_{bottom}[/tex] = [tex]F_{adhesion}[/tex]

Learn more here:

https://brainly.com/question/18907970

Answer:

Wbottom=Fadhersion it was right on y test

Explanation:

what is concentration?​

Answers

Answer:

The concentration of a chemical substance expresses the amount of a substance present in a mixture.

Another definition is that concentration is the ratio of solute in a solution to either solvent or total solution. Concentration is usually expressed in terms of mass per unit volume.

Answer:

In chemistry, concentration is the abundance of a constituent divided by the total volume of a mixture. Several types of mathematical description can be distinguished: mass concentration, molar concentration, number concentration, and volume concentration.

A person holds a bucket of weight 60N and climbs vertically the distance of 5m. What is the work done by gravity?

Answers

Answer:

300 J (Joules)

A Joule will measure "the amount of work done when a force of one newton is exerted through a distance of one meter"

Hope this Helps

__________ invented the analytical engine, a machine that did calculations.

Answers

Answer:

Charles Babbage

Explanation:

Analytical Engine, generally considered the first computer, designed and partly built by the English inventor Charles Babbage in the 19th century (he worked on it until his death in 1871).

A piece of wood has a mass of 8g and a volume of 10cm³ work out the density of the wood

Answers

Answer:

0.8 g/cm³

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 8 g

volume = 10 cm³

We have

[tex]density = \frac{8}{10} = \frac{4}{5} = 0.8 \\ [/tex]

We have the final answer as

0.8 g/cm³

Hope this helps you

On a beautiful spring day, Juan is playing a round of golf. He hits the golf ball with an initial velocity of 44.9 m/s at an angle of 28 degrees. If it hits the ground 6s later, how far does it travel? Answer: ____m

Answers

Answer:

140m 13 degree

Explanation:

yan po thank nalang po sa point

NEED HELP!!!! 15 POINTS!!!!!!!

Why is it important to have both long-term and short-term goals?
A.
Short-term goals can get repetitive, so long-term goals help maintain motivation.

B.
Short-term goals are more achievable while long-term goals are more unrealistic.

C.
Long-term goals take planning and are easier to accomplish than short-term goals.

D.
Long-term goals are often inspirational, so they are easier to meet than short term goals.

PLEASE NO LINKS

Answers

i believe A is the correct answer!!

What force is represented by the vector?
O friction
O gravity
O normal force
O push
Someone pls help

Answers

Well I think B hope this helps

Answer:

gravity

Explanation:

because it acts on a particular direction that is towards the ground

brainliest plz

What is the voltage between two short-circuited points? PLZ HELP ASAP​

Answers

Answer

It states that V/I = R where V is potential difference R is resistance and I is the current flowing across the terminals.Now when short circuit the resistance ...

Explanation:

what is the use of telescope​

Answers

Telescopes are used to magnified distant objects, mostly used to see objects in space.

Answer:

The use of a telescope is to see distant objects

Explanation:

For example: you can look through a telescope to see constellations and stars. Hope this helps <3

Why are earthquakes and volcanic eruptions common in a convergent plate boundary?

Answers

Answer:

Much magma is generated at a converging plate boundary where subduction is occurring.

what are the magnifications of the objective lenses

Answers

Answer:

Objective Lenses: Usually you find 3 or 4 objective lenses on a microscope. They almost always consist of 4x, 10x, 40x and 100x powers, when coupled with a 10x (most common) eyepiece lens, total magnification is 40x (4x times 10x) 100x, 400x and 1000x

Explanation:

Objective lenses come in various magnification powers, with the most common being 4x, 10x, 40x, and 100x, also known as scanning, low power, high power and typically oil immersion objectives, respectively

what type of wavelengths do ultraviolet rays have?

Answers

According to who.int,

"The UV region covers the wavelength range 100-400 nm and is divided into three bands: UVA (315-400 nm) UVB (280-315 nm) UVC (100-280 nm).Mar 9, 2016"

in short 100-400nm

a proton, moving east, enters a magnetic field of a certain strength. because of this field the proton curves downward. what is the direction of the magnetic field?

Answers

Answer:

F = q V X B

Using the right hand rule (right hand screw) turn V into B to get direction of force which in this case is down

If V is east and F is down then one can see that B must be directed towards  the south - turn V into B (south) and F will be directed downwards.

if you hold a heavy weight over your head, the work you do __________.

Answers

Answer:

Is zero.

Explanation:

I legit just had this question on my homework.

Other Questions
what was the Juche philosophy and what was the state of Korea by 1950? 1) Find the value of x2) Justify your answer by explaining the series of angle relationships used to prove the value of x. I need help, my teacher gave me a study guide but i literally got stuck on the third question of it. MARKING BRAINLEIST IF YOUR RIGHT !! What is the definition for copyright What does a single solid white line mean? why do stem get modified give any three examples and explain how this notification help the plant President Andrew Jackson had to deal with a number of issues while he was in office. Three of these were nullification, the National Bank, and the Indian Removal Act. Write one or two sentences for each of the three, explaining what the issue was, why it was a problem for Jackson, and what he did about it. Describe three adaptive advantages of mammalian anatomy Broken English has been linked to minorityor impoverished people statistically. Do youbelieve that speaking a certain way or using adifferent dialect shows a person's intelligence?Explain your answer using examples -95What is the quotient of??oOO3249O )122-29 which of the following statements best describes the concept of a function? what shifts in survivor ship curves would you expect to see if environmental problems worsen and polluted related diseases increase? Please help!! Due tonight! Will give brainliest to a HELPFUL ANSWER! I need this in spanish of the 4 companies listed below, which company is more likely to use specific identification to value its inventory and cost of goods sold? Does any have a LezhinComics account i can use??? 1TIME REMAINING59:10Which graph has a slope of ?2-1.-5-4-2-111-21,1 2 3 4 5-2-3-3-5 BRAIN LISTBRAIN LIST Which statements best describe the North Carolina gold rush? Check all that apply.Charlotte developed into a large city as a result of the gold rush.All the miners who came to North Carolina stayed permanently. Some mines were major operations with thousands of workers.Immigrants from different parts of the world came to find gold.The gold rush helped banking and industry grow in the state.Cornish miners struggled to settle into life in North Carolina.