Salmon often jump waterfalls to reach their breeding grounds. Starting downstream, 3.04 m away from a waterfall 0.585 m in height, at what minimum speed must a salmon jumping at an angle of 41.7 ◦ leave the water to continue upstream? The acceleration due to gravity is 9.81 m/s 2 . Answer in units of m/s.

Answers

Answer 1

Answer:

V₀ = 5.47 m/s

Explanation:

The jumping motion of the Salmon can be modelled as the projectile motion. So, we use the formula for the range of projectile motion here:

R = V₀² Sin 2θ/g

where,

R = Range of Projectile = 3.04 m

θ = Launch Angle = 41.7°

V₀ = Minimum Launch Speed = ?

g = 9.81 m/s²

Therefore,

3.04 m = V₀² [Sin2(41.7°)]/(9.81 m/s²)

V₀² = 3.04 m/(0.10126 s²/m)

V₀ = √30.02 m²/s²

V₀ = 5.47 m/s


Related Questions

please help! also specify if you are saying the question letter or the letter on the track when u answer :)

Answers

B because gravity will pull you down at a faster speed because you’re higher

John has gradually added time to his running routine to reach his goal of running a 5k. John has reached his goal of running a 5k without stopping. This achievement is an example of

Answers

Answer:

pursuing a goal

Explanation:

Since there are no answer choices provided I would say that this is an example of pursuing a goal. This is basically all of the tasks and struggles that an individual must go through in order to finally achieve a certain goal. It also involves gradually breaking barriers and pushing forward by increasing the complexity of the tasks until you are able to break through all of them to reach the end-goal that you have been striving for. Which is exactly what John has been doing in this scenario by gradually increasing his running time.

What do all elements in a column in the periodic table have in common? (2 points)

Answers

Answer:

Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements.

Explanation:

A 6.00 kg box is pulled to the left across a frictionless surface by a force of 20.0 N directed at 45o above the horizontal. The box does not move vertically. 20.0 N 45.0o 6.00 kg a) Resolve the 20.0 N vector into its horizontal and vertical components, using the trigonometric functions. b) Determine the magnitude of the normal force (will it be equal to the weight?). c) Determine the magnitude and direction of the acceleration.

Answers

I’m bored wanna talk

HELP MEEEEEEE
Which choice is the smallest in mass? neutron nucleus proton electron

Answers

The answer is electron

Answer:

electron

Explanation:

Plyometrics can help a person maintain cardiorespiratory fitness. Please select the best answer from the choices provided. T F

Answers

Answer: IT IS TRUE

Explanation:

Hope this helps

Plyometrics can help a person maintain cardiorespiratory fitness T

It is TRUE that plyometrics can help a person maintain cardiorespiratory fitness

Plyometrics

Plyometrics is a type of exercise training that works with the principle of using speed and force of different movements to build muscle power.

Plyometrics include different types of exercises such as pushups, throwing, running, jumping, and kicking.

Learn more about plypmetrics:

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1. A ball rolls off of a table with a speed of 3.2 m/s. The table is 1.6 m high.
a) When does the ball hit the ground? (time)
b) How far away from the base of the table does the ball travel?
c) With what vertical speed does the ball hit the floor?

Answers

Answer:

Explanation:

for vertical displacement h = 1.6 , let time taken be t , initial vertical velocity = 0

h = ut + 1/2 g t²

= 1/2 g t²

1.6 = .5 x 9.8 x t²

t² = .3265

t = .57 s

b )

velocity in horizontal direction = 3.2 m /s

horizontal displacement

= 3.2 x .57 = 1.82 m

c )

for vertical movement

v = u + gt

= 0 + 9.8 x .57

= 5.58 m /s

For resonance to occur, the object must experience a frequency equal to its what?


period


wavelength


amplitude


natural frequency

Answers

Answer:

natural frequency

Explanation:

Answer: correct answer is {d}

Explanation: i got it right on my assesment

How many times more gravitational potential energy would the same lander have on top of a 350-m hill on Earth? It would have times more gravitational potential energy

Answers

Answer:

6

Explanation:

Just did it.

The gravitational potential energy would the same lander have on top of a 350-m hill on Earth is 6.

What is gravitational potential energy?

If an object is lifted, work is done against gravitational force. The object gains energy.

The equation for calculating gravitational potential energy is

GPE =mgh

where, GPE is the gravitational potential energy, m is the mass, h is the change in height and g is the acceleration due to gravity.

The heavier the particle and the higher it is over the ground, the more gravitational potential energy it holds. Gravitational potential energy increments as weight and level increments.

Given is the height of hill h = 350m.

Thus, the same lander will have the the potential energy 6 times more.

Learn more about gravitational potential energy

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A fire is burning in a fireplace. Where is the radiation?

A. You touch warm bricks next to the fireplace
B. You can feel the heat from across the room
C. Heat is rising up from the chimney

Answers

I think it’s A.
........

What is mean by speed?​

Answers

Answer:

Speed is acceleration or a high rate of motion

Answer:

the rate at which something or someone moves or operates or is able to move or operate .

How do atoms of different non metals stabilize themselves?
Pls help

Answers

Answer:

by taking other atoms that have one shell and putting it i the spot that they need t in

Explanation:


Serotonin is a chemical substance that acts as a neurotransmitter. It helps relay
messages in the human brain. The formula for one molecule of serotonin is shown
below.
c10h122N₂0
How many atoms in all are in a molecule of serotonin?

Answers

Answer: 25

Explanation:

A flashlight that is powered by 3 Volts and uses a bulb with a
resistance of 68. will have a current of Amps

Answers

Start with the formula V = IR, where V is voltage, I is current, and R is resistance.

The voltage is 3 volts, so V = 3 volts

The resistance is 68 ohms, so R = 68 ohms

We don’t know I, which is the current in amps

Plug in what we know into the ohms law formula:

3 volts = I * 68 ohms

I = 3/68 = 0.044 Amps

Katie is making a strawberry milkshake in her blender. A 0.05kg strawberry is rapidly spun around the inside of the container with a speed of 11.0 m/s, held by a centripetal force of 12.0 N. What is the radius of the blender at the strawberry’s location? Round answers to two decimal places.

Answers

Answer:

The radius of the blender is approximately 0.5041[tex]\bar 6[/tex] meters

Explanation:

The given parameters are;

The mass of the strawberry, m = 0.05 kg

The speed with which the strawberry is spun, v = 11.0 m/s

The centripetal force holding the strawberry = 12.0 N

The formula for the centripetal force, [tex]F_c[/tex], is given as follows;

[tex]F_c = \dfrac{m \cdot v^2}{r}[/tex]

Where;

r = The radius of the centripetal rotation, which is the radius of the blender

[tex]\therefore r = \dfrac{m \cdot v^2}{F_c}[/tex]

Substituting the values gives;

[tex]\therefore r = \dfrac{0.05 \times 11^2}{12} = \dfrac{121}{240} \approx 0.5041 \bar 6[/tex]

The radius of the blender, r ≈ 0.5041[tex]\bar 6[/tex] meters.

How could semantics be defined?
A.
as a set of rules that studies how words are broken down into morphemes
B.
as a set of rules that is concerned with understanding the meaning of words
C.
as a set of rules that dictates how vowels and consonants are pronounced
D.
as a set of rules that determines how words can be arranged into sentences

Answers

Answer:

its b >.<

Explanation:

just trust me laddies

Semantics can be defined : ( B ) As a set of rules that is concerned with understanding the meaning of words

What are semantics ?

Semantics can be defined as the message conveyed by words in a sentence and context where the sentence is placed. It is a set of rules that is concerned with the understanding of words in sentences used in a context.

Hence we can conclude that Semantics can be defined : ( B ) As a set of rules that is concerned with understanding the meaning of words.

Learn more about Semantics : https://brainly.com/question/1253261.

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How many kilograms in 17,000 mg?

Answers

The answer to your question is 0.017

Circle the letter of each factor that determines whether a molecule
is polar or nonpolar.

a. the number of atoms in the molecule
b. the type of atoms in the molecule
c. the number of bonds in the molecule
d. the shape of the molecule

Answers

I believe the answer is C
Hope this helps you

A car's horn produces a constant frequency of 350 Hz as it passes by Suzy. What is the best estimate of the
frequency Suzy hears after the car passes her?
330 Hz
350 Hz
360 Hz
700 Hz

Answers

Answer:

330 Hz

Explanation:

edg2020

The best estimate of the frequency Suzy hears after the car passes her is govern by doppler effect and it is 330 Hz.

What is frequency?

Frequency is the number of occurrences of a repeating event per unit of time.

What is Doppler EFFECT?

The Doppler effect is the change in frequency of a wave in relation to an observer who is moving relative to the wave source.

According to the Doppler Effect, the frequency observed by an observer decreases for source going away.

To know more about Doppler Effect here

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A parallel circuit contains a battery with a voltage of 9 V. The total resistance in the circuit is 18 ohms. Which claim about the current in the circuit can be supported mathematically from the relationships between voltage, current, and resistance? A.
the current flowing through the circuit is 0.5 amps because current is related to voltage and resistance by the formula I = V/R

B.
the current flowing through the circuit is 162 amps because current is related to voltage and resistance by the formula I = VR

C.
the current flowing through the circuit is 27 amps because current is related to voltage and resistance by the formula I = R + V

D.
: the current flowing through the circuit is 2 amps because current is related to voltage and resistance by the formula I = R/V

Answers

Answer:

Its C I fell confident

Explanation:

I took 2 hrs I tried on this for u dont get mad have a wonderful day :D

So the incorrect option is C the current flowing through the circuit is 27 amps because the current is related to voltage and resistance by the formula I = R + V

What is resistance?

Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω).

Ohms are named after Georg Simon Ohm (1784-1854), a German physicist who studied the relationship between voltage, current and resistance.

Ohm's Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit.

To students of electronics, Ohm's Law (E = IR) is as fundamentally important as Einstein's Relativity equation (E = mc²) is to physicists.

E = I x R

So the incorrect option is C the current flowing through the circuit is 27 amps because the current is related to voltage and resistance by the formula I = R + V

To know more about Resistance follow

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The small piston of a hydraulic lift has an area of 15 cm². A car weighing 45,000 N is placed on the 2500 cm² large piston. How much force is required on the small piston to lift the car?​

Answers

Explanation:

I believe the answer is 12 N

A cube of wood exerts a pressure of 2 pa. When it is placed on a floor. What is the force by the cube if its surface is 5 cm²​

Answers

Pressure exerted by the wooden cube = 2 Pa

Surface area of cube = 5 cm² = 0.0005 m²

Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

Formula of Pressure:

[tex] \boxed{ \bf{P = \dfrac{F}{A}}}[/tex]

P → Pressure

F → Force

A → Surface Area

By substituting values in the formula, we get:

[tex] \rm \longrightarrow 2 = \dfrac{F}{0.0005} \\ \\ \rm \longrightarrow F = 2 \times 0.0005 \\ \\ \rm \longrightarrow F = 0.001 \: N \\ \\ \rm \longrightarrow F = 1 \: mN[/tex]

[tex] \therefore [/tex] Force applied by the cube on the floor = 1 mN

Andy has been consuming a set number of calories and recently added an additional 100 calories in the form of a daily snack. Although he is not trying to lose weight, he has lost one pound per week over the last two months. He wants to increase his level of activity and exercise, and he wants to return to his weight from two months ago. Which strategy should he follow to prevent becoming underweight?

Increase his activity and exercise levels and add more calories to gradually gain weight
Increase his activity and exercise levels and eat the same number of calories to gradually gain weight
Increase his snacks to two or three per day until he reaches his target weight
Increase his calories consumed and do less activity and exercise until he reaches his target weight

Answers

Answer:

Increase his activity and exercise levels and add more calories to gradually gain weight

Explanation:

What is the net force acting on a 50-kg object that accelerates at a rate of +3.5 m/s/s?

Answers

Answer:

The answer is 175 N

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 50 × 3.5

We have the final answer as

175 N

Hope this helps you

Is it okay to keep an albino gecko

Answers

Answer:

Yes

Explanation:

How can the potential energy in magnets be used to create kinetic energy in an object without making contact?

Answers

Answer:  If you move a magnet quickly through a coil of copper wire, the electrons will move - this produces electricity.

Explanation:

n
Which of the following has a crystalline appearance?
baking soda
salt
baking powder
corn starch

Answers

Salt has a crystalline appearance.

Answer:

B: Salt

Explanation:

I answered this correct beforehand.

How much time will it take for a truck to travel 20 meters if it is traveling at 4 m/s?

Answers

Answer:

The answer is 5 s

Explanation:

The time taken can be found by using the formula

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

d is the distance

v is the velocity

From the question we have

[tex]t = \frac{20}{4} \\ [/tex]

We have the final answer as

5 s

Hope this helps you

the answer to this question is 5s

Please get it right!! I'm bad at school there's literally no point in learning this so help please.

Ok the question is....
Which model shows a molecule of a substance that is made up of three elements?

Answers

It’s C or B I’m not sure

Location A on the surface of Earth bas a much higher temperature than Location Which statement is most likely true A.Both locations are at the poles B.Both are at the equator C.Location A is at the equator and Location B is the poles D.Location at the poles and location B is the equator

Answers

Answer:

The anwser is b

Explanation:

Answer:

the answer is B

I know  because i just did it

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