Esther dives off a 3m springboard and initially bounces up with a velocity of 8.0 m/s at an angle of 80.0 to the horizontal.. what are the horizontal and vertical components of her velocity​

Answers

Answer 1

This question involves the concept of the resolution of a vector into its rectangular components.

The horizontal component of velocity is "1.4 m/s", and the vertical component of the velocity is "7.9 m/s".

In order to find the horizontal and vertical components of the velocity of Esther, we must resolve the velocity vector into its rectangular components. Hence, the following formulae will be used:

[tex]Horizontal\ Component = v_x = v\ Cos\theta\\v_x = (8\ m/s)(Cos\ 80^o)\\v_x = 1.4\ m/s[/tex]

[tex]Vertical\ Component = v_y = v\ Sin\theta\\v_y = (8\ m/s)(Sin\ 80^o)\\v_y = 7.9\ m/s[/tex]

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Esther Dives Off A 3m Springboard And Initially Bounces Up With A Velocity Of 8.0 M/s At An Angle Of

Related Questions

answer asap asap!



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Answers

Answer:

Neutral

Explanation:

A neutral atom has an equal number of protons and electrons so that the positive and negative charges exactly balance. Since it is the electrons that determine how one atom interacts with another, in the end it is the number of protons in the nucleus that determines the chemical properties of an atom.

Fun fact
An apple, potato, and onion all taste the same if you eat them with your nose plugged

Answers

thats epic my guy jsjsjdjdjd

Answer:

false I think

Explanation:

please helllllp shshsu

Answers

pretty sure it’s conduction

what happens to particles when p waves and s waves pass through them?

Answers

Answer:

Particles are squeezed together and pushed apart by P waves. Particles slide past each other in a crosswise direction as S waves pass through them.

A car traveling at 30 m/s speeds up to 35 m/s over a period of 5 seconds. What is the acceleration of the car?

Answers

Answer:

u =30 m/s

v = 35 m/s

t = 5 secs

Explanation:

a = (v- u)/t

a = (35-30)/5

a = 5/5

a = 1 m/s^2

PLS MARK BRAINLIEST

a ball is thrown upward at an angle what causes the change in the balls velocity?

Answers

Answer:

When a ball is thrown up in the air, the ball's velocity is initially upward. Since gravity pulls the object toward the earth with a constant acceleration g, the magnitude of velocity decreases as the ball approaches maximum height.

NEED HELP!!!! 11 POINTS!!!!!

Jose’s doctor recommends that he add more cardio to his exercise routine. Which exercise would be the BEST choice?
A.
ballet
B.
jogging
C.
bowling
D.
volleyball

PLEASE NO LINKS

Answers

Answer:

B, jogging

Explanation:

i guess because it makes you sweat

Answer:

jogging

Explanation:

run at a steady gentle pace, especially on a regular basis as a form of physical exercise.

on the vertical projection what is the difference between a protected up and down?​

Answers

Explanation:

projected up means you are on the ground throwing a projectile

projected down mean you are on a high place like a cliff or mountain

A girl runs at an average speed of 6 m/s for 12 s. How far does she go in 12 s?

Answers

Explanation:

Distance= speed × time

= 6 × 12 m

= 72 m

what is the purpose of the magnetic field in a cathode ray tube?

Answers

Answer:

In order to determine if the cathode ray consisted of charged particles, Thomson used magnets and charged plates to deflect the cathode ray. He observed that cathode rays were deflected by a magnetic field in the same manner as a wire carrying an electric current, which was known to be negatively charged.

Explanation:

According to the right-hand rule, the magnetic field causes the electrons to be refracted. Turn on the power strip to learn about the Cathode Ray (electron beam) Deflection by an Electric Field.

What is Magnetic Field?

Magnetic forces can be seen in a magnetic field, an electric current, a changing electric field, or a vector field around a magnet. Magnetic compass needles and other permanent magnets align in the direction of magnetic fields like the one found on Earth. Electrically charged particles are forced to move in a circular or helical pattern by magnetic fields. The operation of electric motors is caused by this force, which is applied to electric currents in wires in a magnetic field.

The Lorentz Force, which is explained by the left-hand rule, has an impact on what happens inside the tube. In accordance with this law, an electron or other charged particle travelling in a magnetic field will be deflected by the field at a right angle to both the field's direction and the direction of the particle.

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A block is dragged along the following surfaces. Which would result in the greatest kinetic friction force?


highly polished table

rough table

sandpaper

The kinetic force would be equal for all surfaces.

Answers

Answer:b

Explanation:

The greatest kinetic friction force occurs when the block is dragged along  Sand paper

Kinetic friction is defined as the force of friction that exists between two surfaces in contact as one surface moves over the other.

Many factors affects the magnitude of frictional force and prominent among those factors is the nature of a surface. Rough surface cause a greater frictional force than smooth and highly polished surfaces or smooth surfaces.

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The average speed of a plane was 600 km/hr. How long did it take

the plane to travel 120 kilometers?

Answers

Answer:

0.2 hours

Explanation:

an object is thrown with an initial speed v near the surface of earth. assume that air resistance is negligible and the gravitational field is constant. if the object is thrown vertically upward, the direction and magnitude of its acceleration while it is in the air is

Answers

Hi there!

a = -9.81 m/s²

When throwing a ball into the air (ignoring air resistance), the acceleration in the vertical direction is ALWAYS constant and equal to the acceleration due to gravity.

In this instance, the acceleration due to gravity is downward, resulting in the object falling. So, we must put a negative sign:

Thus, a = -9.81 m/s².

I need some help

a golfer can hit a golf ball 300 m horizontally. what maximum height would a 301.5 meter drive reach if it was launched at a 25 degree angle above the ground​

Answers

This question involves the concepts of projectile motion, horizontal range, and height.

The maximum height reached by the ball is "35.15 m".

First, we will find out the launch velocity of the projectile motion of the ball, by using the formula of the horizontal range:

[tex]R= \frac{u^2Sin\ 2\theta}{g}\\\\[/tex]

where,

R = horizontal range = 301.5 m

u = launch speed = ?

θ = launch angle = 25°

g = acceleration due to gravity = 9.81 m/s²

Therefore,

[tex]301.5\ m = \frac{u^2Sin\ 50^o}{9.81\ m/s^2}\\\\u = \sqrt{\frac{(301.5\ m)(9.81\ m/s^2)}{Sin\ 50^o}}[/tex]

u = 62.14 m/s

Now, we will find out the maximum height (H) of the projectile motion, using the following formula:

[tex]H = \frac{u^2Sin^2\theta}{2g}\\\\H =\frac{(62.14\ m/s)^2Sin^2(25^o)}{2(9.81\ m/s^2)}[/tex]

H = 35.15 m

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when we drink coke it's black in colour but why don't our urine becomes black?​

Answers

Answer:

Because it filters

Explanation:

it filters out the urine, and changes it into nutrients I'm pretty sure

1. How does the mass of Jupiter compare to Earth?
2. How quickly does it rotate on its axis?
3. What makes the different bands on the planet?

Answers

Answer:

1.

Jupiter is the largest planet in the solar system. (Image credit: NASA)

The largest planet in the solar system, the gas giant Jupiter is approximately 318 times as massive as Earth. If the mass of all of the other planets in the solar system were combined into one "super planet," Jupiter would still be two and a half times as large.

2.Rotation of Jupiter

[/caption]

Jupiter has the fastest rotation of all the planets in the Solar System, completing one rotation on its axis every 9.9 hours.

3.Jupiter, the King of the Planets, is a gas giant, which means that it's made mostly of gases like hydrogen and helium, and that it doesn't have a solid surface in the way that rocky planets like Earth do. With a temperature of 130 K (-140 C, -230 F), it's so cold that it gives off most of its energy in the infrared. In fact, Jupiter gives off almost twice as much heat as it receives from the Sun. It's able to do this because it has its own internal heat source, powered by the slow gravitational collapse that started when the planet first formed. Astronomers estimate that Jupiter is currently shrinking by almost 2 cm per year

Why is density such an important physical property?​

Answers

Answer:

Density is important because it determines what substances floats and sinks.

Explanation:


Guys helppppp thanks so much

Answers

Answer:

4.9 or 49kj not sure hope it helps you

plss help plss i need it now​

Answers

Answer:

anong grade po. yan? seven po ba yan

FIRST TO ANSWER CORRECTLY GETS BRAIBLIEST!!

COLUMN A
1. _______ A
2.________B
3.________C
4________ D
5.________E

COLUMN B

A. brushes
B. Magnets
C. Battery terminals
D. Commutator
E. Armature

Answers

Brushes, battery terminals, commutator, armature, magnets

an electric car is being driven through a town at 22m/s the kinetic energy of the car is 222640 J calculate the mass of the car

Answers

The mass of the car at the given kinetic energy is 920 kg.

The given parameters;

initial velocity of the car, u = 22 m/skinetic energy of the car, K.E = 222,640 J

Kinetic energy if the energy acquired by a body during its motion. This kinetic energy is the product of average velocity squared and mass of the object.

The mass of the car at the given kinetic energy is calculated as follows;

[tex]K.E = \frac{1}{2} mv^2\\\\mv^2 = 2K.E \\\\m = \frac{2K.E}{v^2} \\\\m = \frac{2 \times 222,640}{(22)^2} \\\\m = 920 \ kg[/tex]

Thus, the mass of the car at the given kinetic energy is 920 kg.

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where does the largest input of solar energy occur?

Answers

Answer:

the earth

Explanation:

The largest input of solar energy strikes the Earth at the equator.

Where are protons and neutrons found in an atom

Answers

Answer:

The Nucleus

Explanation:

Protons and Neutrons are found in the nucleus of an atom.

Answer:

Nucleus

Explanation:

the sound _____ of these vibrations passes along the string​

Answers

Answer:

This results in a wave of vibrations travelling through the air to the ... such as the medium it travels through and the strength of the initial vibration

Explanation:

Answer:

The sound waves of these vibrations passes along the string.

How does resistance affect the flow of current in a connecting wire?​

Answers

Answer:

Resistance affect the flow of current in a connecting wire because there is a direct relationship between the amount of resistance encountered by charge and the length of wire it must traverse. Second, the cross-sectional area of the wires will affect the amount of resistance. Wider wires have a greater cross-sectional area.

An object is pulled up an incline plane at a constant velocity as the picture above shows. Calculate the tension on the rope.
A. 377 N
B. 502 N
C. 305 N
D. 545 N

Answers

Hi there!

[tex]\large\boxed{545N}[/tex]

Since the object is being pulled at a constant velocity, the forces must be balanced.

Since there is no movement vertically, we must take into account the horizontal forces. We can also assume a positive acceleration to be in the direction of motion.

The acceleration and force due to gravity on an incline is:

a = gsinФ

F = MgsinФ

∑F = -MgsinФ + T

Since it is getting pulled at a constant velocity, ∑F = 0. So:

0  = -MgsinФ + T

MgsinФ = T

Solve for T by plugging in values. Let g = 10 m/s²

T = (120)(10)sin(27) ≈ 545 N

WILL MARK BRAINLIEST
A boy sledding down a hill accelerates at
1.29 m/s2
If he started from rest, in what distance
would he reach a speed of 6.87 m/s?
Answer in units of m.

Answers

Answer:

Explanation:

Explanation: In order for us to know how long it takes for the speed to be reached, we use the equation V= Vo + at, with V=6.87m/s, Vo= 0m/s since you start from rest and a=1.29m/s². T is the time in seconds that we want to find out.

6.87 = 0 + 1.29t

6.87 = 1.29t

t= 5.33s

Now, we want to know the distance this boy reaches in 5.33 seconds, in a 7m/s speed and accelarating in 1.29m/s². For finding this out, we use another equation, S = So + Vot + (at²)/2, S being the final distance, So = 0m because he started from rest, and the other variables used before.

S = 0 + 0*5 + [1.29*(5.33²)]/2

S = 0 + 0 + (1.29*28.40)/2

S = 36.64/2

S = 18.32m

A boy is watching his grandfather fire an old cannon. He notices that whenever the
cannonball is fired, it moves with a very high velocity to the right. He also notices
that when the cannonball is fired, the cannon moves very slowly to the left. How
does conservation of momentum explain these observations?
v cannon
V cannonball
Since the motions of the cannon and cannon ball were caused by the same
event, they must have equal and opposite momentum. Since the cannon has
much more mass, it will have a larger velocity.
The total momentum of the system was zero before the cannon was fired, so
the cannonball and cannon must have equal and opposite momentum. Since
the cannon has much more mass, it will have a smaller velocity.
The cannon gave momentum to the cannon ball, so they both begin to move.
Since the cannon has much more mass, it will have a smaller momentum.
The cannon gave momentum to the cannon ball, so they both begin to move.
Since the cannonball has much less mass, it will have a smaller momentum.

Answers

Answer:

since the cannon ball has much less mass it will have a smaller momentum.

The system's total momentum was zero before the cannon was fired, the momentum of the cannonball and the cannon must be equal and opposing. Since the cannon has much more mass, it will have a smaller velocity.

What is momentum?

The combination of a particle's mass and velocity produces momentum. Momentum has both a direction. The force exerted on a particle is equated to the time rate of change of momentum by Isaac Newton's second equation of motion.

Since there is no external force acting on the system, momentum ought to be conserved in accordance with the law of conservation of momentum.

Since we are aware that momentum is determined by a formula

M = [tex]mass * velocity[/tex]

Here M is the momentum.

Since the system's total momentum was zero before the cannon was fired, the momentum of the cannonball and the cannon must be equal and opposing. The cannon will have a lower velocity because it has a lot greater mass.

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answer asap!!
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Answers

Answer:

conduction

Explanation:

............................

The velocity of a bus increases from 27km/h to 30m/s in . Calculate its acceleration.

Answers

Answer:

No time interval???

Explanation:

convert from km/h to m/s (speed)

27×1000/3600

27000/3600

=7.5m/s

a= v-u/t

v(final velocity) is 30m/s, u(initial velocity) is 7.5m/s

a= 30-7.5/t

a= 22.5/t (m/)

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