Usain Bolt ran the 100m dash in 9.69 seconds. How fast does he run in the 100m dash?​

Answers

Answer 1
The answer is in the question, it’s 9.69

Related Questions

Elena failed her algebra exam and blames her teacher for teaching the concepts poorly. How would attribution theory explain Elena's behavior?

A. Elena is using situational attribution because she is blaming events that were outside of her control.

B. Elena is using internal attribution because she is blaming events that were within her own control.

C. Elena is making a dispositional attribution because she is assigning her teacher's behavior to her character.

D. Elena is making a fundamental attribution error because she is underestimating her own influence on the situation.

Answers

Answer: From What i Seeing it is Option B

Please help I’ll name you brainliest and give five stars please

Answers

Answer:

i think its 10 or 11 not sure though if its wrong im sorry im trying to help

Explanation:

Con el propósito de controlar las variables que influyen en la caída libre se provoca el vacío en la sala de un laboratorio. Si se dejan caer tres esferas, una de plomo, otra de aluminio y la última de plumavit, ¿en qué orden caerán las esferas si son soltadas desde una altura de 5 m?

Answers

Answer:

El plomo, el aluminio y la plumavit caerán al mismo tiempo.

Explanation:

En cinemática, la caída libre es un movimiento dónde solamente influye la gravedad. En este movimiento se desprecia el rozamiento del cuerpo con el aire, es decir, se estudia en el vacío.

La caída libre es un movimiento uniformemente acelerado de un cuerpo dónde solamente influye la gravedad y se estudia en el vacío, es decir, se debe despreciar  el rozamiento del cuerpo con el aire. Entonces a este movimiento se denomina caída libre ideal. Y en esas condiciones, la aceleración que adquiriría el cuerpo sería debida exclusivamente a la gravedad, siendo independiente de su masa.

Entonces, el plomo, el aluminio y la plumavit caerán al mismo tiempo ya que adquirirían la misma aceleración, g, que es la aceleración de la gravedad.

Figure I shows the position of the moon at local time 10:00 P. M with respect to point A on earth’s surface. Figure II shows the position of the moon 24 hours later with respect to the same place. Which phenomenon will a person at point A observe?

Answers

Answer:

A

Explanation:

i just did this on usatestprep the answer A

Which object has the most thermal energy?

Answers

Answer:

Matter in its gas state has the most thermal energy than when it is a solid or a liquid. Because gasses have more thermal energy than others, they move differently than others.

Explanation:

;P

Which is a convex lens? (The blue arrows represent the direction of light as it interacts with the lenses. ).

Answers

Image C is a convex lens.An optical lens is made up of two spherical surfaces is convex lens.Its surfaces are curved outwards.

What is convex lens ?

An optical lens is made up of two spherical surfaces is convex lens The lens is called a biconvex lens or simply convex lens if those surfaces are curved outwards.

Converging lens is another name for it. It's because it brings all the light rays that are parallel to the primary axis together at the focus point (F).

The picture created by a convex lens is always real and inverted. The produced image is virtual and erect when the item is positioned between the focus and the optical center of the lens.

Hence image C is a convex lens.

To learn more about the convex lens refer to the link;

https://brainly.com/question/1604692

Answer:

C

Explanation:

PHYSICAL SCIENCE

WILL GIVE BRAINLIEST IF CORRECT

A powered winch is used to pull a sailboat to shore. The winch uses a 900 W motor.

If the motor is used for 30s, how much work does it do? (Power: P = W/t)

A. 0.03 J
B. 30 J
C. 960 J
D. 27,000 J

Answers

Answer:

Option D

Explanation:

Taking 2020 unit test for edu right now.

Find the formula for terminal velocity and define each of the variables in the equation.

Answers

When the object falls through a viscous fluid with terminal velocity the total downward force becomes equal to total upward force

[tex]\\ \rm\rightarrowtail mg=U+F_v[/tex]

[tex]\\ \rm\rightarrowtail mg=m_1g+6\pi \eta rv_T[/tex]

[tex]\\ \rm\rightarrowtail (m-m_1)g=6\pi \eta rv_T[/tex]

[tex]\\ \rm\rightarrowtail v\rho g=6\pi \eta rv_T[/tex]

[tex]\\ \rm\rightarrowtail \dfrac{4}{3}\pi r^3(\rho-\sigma)g=6\pi\eta rv_T[/tex]

[tex]\\ \rm\rightarrowtail v_T=\dfrac{4gr^2(\rho-\sigma)}{18\eta}[/tex]

[tex]\\ \rm\rightarrowtail v_T=\dfrac{2}{9}\dfrac{gr^2(\rho-\sigma)}{\eta}[/tex]

[tex]\eta[/tex] is viscosityr is radius of tubev_T is terminal velocitym is mass[tex]\rho [/tex]is density of object[tex]\sigma[/tex] is density of fluidg is acceleration due to gravity

60 points! Explain how fission can cause damage to living tissue (i.e. what does nuclear energy do to the tissue?)

Answers

Answer:

Radiation Released by Fission

When an atom is split, three types of radiation that can damage living tissues are released. ... Ionization is the transfer of energy to the molecules that make up tissue, breaking chemical bonds and causing damage to cells and to DNA.

Explanation:

thanks mark as brainiest,rate the answer

Light waves and sound waves have many similar behaviors, such as reflection and refraction. One behavior they do not share is

Answers

Answer:

light waves can travel in vacuum but sound waves require a medium to travel

also light waves are electromagnetic waves while sound waves are mechanical, light waves are transverse waves while sound waves are longitudinal waves

While sound waves are mechanical, light waves are electromagnetic. Unlike sound waves, which are longitudinal, light waves are transverse. Light waves can go across a vacuum. Since sound waves need a physical medium to move through, they cannot move in a vacuum.

What is sound wave?

The pattern of disruption brought about by the movement of energy through a medium (such as air, water, or any other liquid or solid matter) as it spreads away from the source of the sound is known as a sound wave. Pressure waves are generated by item vibrations that cause sound waves, such as those from a ringing phone.

Unlike sound waves, which need a medium to propagate, light waves may travel in a vacuum.

Additionally, light waves are transverse waves whereas sound waves are longitudinal waves and light waves are electromagnetic waves.

To know more about sound waves:

https://brainly.com/question/29767263

#SPJ2

12. A dragster accelerates to a speed of 112 m/s over a distance of 398 m. Determine the acceleration
(assume uniform) of the dragster.

Answers

It takes 7.1 seconds for this to happen (distance = 1/2 x 7.1 x 112). The acceleration = 112/7.1 = 15.8 m/s^2

If an object is not accelerating, it can exist in what 2 other states of motion?

Answers

Answer:

Friction is a force that acts in a direction opposite to the motion of the moving object.

Friction will cause a moving object to slow down and finally stop.

How is vibrational motion connected to waves?

Answers

Answer:

Explanation:

Waves and wave functions are direct ways to graph vibrational motion. Specifically, for cases dealing with vibrating strings. If you were to move a tensioned string up and down with your arm, you would produce a wave with a given frequency, period, and amplitude.

Which mathematically describes the wave properties of electrons?.

Answers

The Quantum Theory

Hope this helps

Answer:

On Waves. Quantum mechanically, an electron can be described by a wave function oscillating in space and time that has mean values equal to the expectation values of observables corresponding to given operators. ... Electrons are fermions. They are charged particles. in short the quantum theory

i hope its helpful !

A +2.0-nC point charge is placed at one corner of a square (1.5 m on a side), and a -3.0-nC charge is placed on a corner diagonally away from the first charge. What is the magnitude of the electric field at either of the two unoccupied corners? *

Answers

With the charges of the square as +2.0-nC point charge and -3.0-nC point charge, The magnitude of the electric field  is mathematically given as

Et= 14.42 N/c

What is the magnitude of the electric field at either of the two unoccupied corners?

Question Parameters:

A +2.0-nC point charge is placed at one corner of a square (1.5 m on a side), and a -3.0-nC charge

Generally, the equation for the electric field is mathematically given as

E = k*q1/a^2

Therefore

E1= 9*10^9*2*10^-9/1.5^2

E1= 8 N/c

For E2

E2= 9*10^9*3*10^-9/1.5^2

E2= 12 N/c

In conclusion, The magnitude of the electric field at either of the two unoccupied corners

[tex]Et = \sqrt{E1^2 + E2^2}[/tex]

Et= 14.42 N/c

Read more about Electric field

https://brainly.com/question/9383604

state the effect of momentarily touching the conductor with a finger while the charged rod is still near the conductor​

Answers

[tex]\small\color{blue}{⊱─━━━━━━━━━⊱༻●༺⊰━━━━━━━━━─⊰}[/tex]

state the effect of momentarily touching the conductor with a finger while the charged rod is still near the conductor

If Im Mistaken it Changes Access

[tex]\small\color{blue}{⊱─━━━━━━━━━⊱༻●༺⊰━━━━━━━━━─⊰}[/tex]

If you have an insulator that's charged up with a negative charge, and you touch a conductor, the negatively charged excess electrons will move to the conductor until the electrons would rather not move anywhere at all. When this happens, we say that the system has reached equilibrium

[tex]\small\color{blue}{⊱─━━━━━━━━━⊱༻●༺⊰━━━━━━━━━─⊰}[/tex]

-PoliteCat

#CarryLearning

[tex]\large\boxed{\text{Together We Go Far!}}[/tex]

An object moves away from the earth. Consider system A: the object alone, and system B: the object and the earth together. The potential energy for system A _____ and the potential energy for system B _____. Group of answer choices increases, (there is no potential energy for system B) increases, increases (there is no potential energy for system A), increases decreases, (there is no potential energy for system B) (there is no potential energy for system A), decreases decreases, decreases increases, decreases decreases, increases

Answers

Answer:

1(B) 2(c)

Explanation:

The the weight of an object is the same as the mass of an object

Answers

Weight is the force exerted by the earth on a mass therefore weight = mass * acceleration due to gravity . Weight will different on different surfaces such as the moon ,earth etc . But mass is always the same regardless of the force exerted by the surface

A car is moving with a constant speed of 15 meters per second. What total
distance does the car travel in 90 seconds?

Answers

Answer:

1350 meters

Explanation:

this is easy

15 meters per second

90 seconds

90 * 15 = 1350

A rolling desk chair has a mass of 8 kg and an initial velocity of 6 m/s. The chair is given an acceleration of 12 m/s² for 3s.
What is the magnitude of the net force on the chair during acceleration?
96 N
48 N
144 N
288 N

Answers

You would have to multiply all them to see what you would get

Work is the application of force to move an object. It is proportional to both the force applied to the object and the distance it moves.

Net force = 96 N.

What is the relationship between work force and distance?Work is the application of force to move an object. It is proportional to both the force applied to the object and the distance it moves. This equation can be used to calculate work: Work = Force x Distance.The work done by a force of constant magnitude working in the strict direction of the object's velocity (however that changes) is magnitude of force times distance travelled.Positive Work : If a force moves an object in its direction, the work done is positive.Negative Work: Work is said to be negative if the force and displacement are in opposite directions.

Mass m = 8 kg

Initial velocity = 6 m/s

Acceleration a = 12 m/s²

Time = 3 s

v = u + at

v = 6 + (12)(3)

v = 42 m/s

Work done = (1/2)(8)(42² - 6²)

Work done = 6,912

s = ut + (1/2)(a)(t)²

s = (6)(3) + (1/2)(12)(3)²

s = 18 + 54

Displacement (s) = 72 m

Net force = Work done / Displacement

Net force = 6,912 / 72

Net force = 96 N

To learn more about : Work done

Ref :https://brainly.com/question/18578522

#SPJ2

Name the angle between the refracted ray and the normal at the point of refraction,

Answers

Answer:

hiiiiiiiiiiiiiiiiii

mm

Answer:

It is called the angle of refraction

A boat in the trough of a wave takes 3 seconds to reach the highest point of the wave. The velocity of the wave is 5 m/s. What is its wavelength?

Answers

Answer:

wavelength is equal to speed over frequency

A boat in the trough of a wave takes 3 seconds to reach the highest peak of the wave, then its wavelength will be equal to 30 m.

What is Frequency?

The frequency of an event is its repetition per time unit. In a contrast to spatial frequency, it is also often referred to as temporal frequency, and in a contrast to angular frequency, it's often referred to as conventional frequency.

The standard unit is hertz (Hz), which is equal to one per second. The reciprocal of frequency is period, which itself is defined as the amount of time for one cycle of a repeating occurrence.

From the given data in the question,

Total time, t = 3s + 3s

t = 6 seconds.

Frequency, f = 1/6s

f = 0.1666 Hz

Now, let's find out the wavelength,

λ = υ/f

= 5/0.1666

λ = 30 m.

Therefore, the wavelength will be equal to 30 m.  

To know more about Frequency:

https://brainly.com/question/5102661

#SPJ2

This table shows the weights of four different objects that are sitting on the floor. A person tries to lift each object with a force of 18 N, upward. Which
statement is supported by the data in the table?

Answers

Answer: A

Explanation:

The guy above me was right

Motion is caused by the forces acting on a body. A body will move in the direction of in which the net force is greater. Therefore, objects 1 and 2 will not move but 3 and 4 will accelerate upward.

From the table ; the upward force of 18N is lesser than the force maintained by the objects at rest. Hence, objects 1 and 2 will not move.

However, objects 3 and 4 have forces 16N and 8N respectively which are lesser than the upward force, hence, the body will move upward since the upward force is greater.

Therefore, objects 1 and 2 will not move but 3 and 4 will accelerate upward.

Learn more :https://brainly.com/question/20382231

Two friends are each driving a car down Highway 101. During a particular 10 s interval, Jodi's car moves at a constant 60 mph. During that same time interval, Julie's car transitions from a speed of 20 mph to a speed of 30 mph. Whose car has the greater acceleration?

Answers

Answer:

Julie's car.

Explanation:

The acceleration of an object is equal to the rate of change of velocity. It can be given by :

[tex]a=\dfrac{v-u}{t}[/tex]

Jodi's car moves at a constant 60 mph for 10 s.

Julie's car transitions from a speed of 20 mph to a speed of 30 mph for the same time interval i.e. 10 s.

For Jodi's car, the change in velocity is equal to 0. As a result, its acceleration is equal to 0 m/s².

For Julie's car,

Initial speed, u = 20 mph = 8.9408 m/s

Final speed, v = 30 mph = 13.4112 m/s

Acceleration,

[tex]a=\dfrac{13.4112-8.9408}{10}\\\\a=0.447\ m/s^2[/tex]

It is clear that Julie's car has the greater acceleration than the Jodi's car.

Tell some types of light rays?

Answers

Answer: microwaves, infrared light, ultraviolet light, X-rays and gamma-rays

Hopes this helps!

Red light

Orange light

Green light

Violet light

Laser light

Bright light

Dim light

Sun light

h=height
mass
height
Potential Energy
1.23 kg
3.4 m
4.3 m
98.61 Joules
150.45 Joules
3.45 kg
202.94 Joules
6.2 kg
7.1 kg
3.56 m
if his potential energy is 98.61 joules and his height is 4.3m what is his mass?

Answers

Answer:

m = 2.34 kg

Explanation:

The given data shows the relation between the potential energy and the height of an object. The formula for the potential energy is given by :

E = mgh

g is the acceleration due to gravity

We have,

E = 98.61 J, h = 4.3 m

Putting all the values to find m. So,

[tex]m=\dfrac{E}{gh}\\\\m=\dfrac{98.61}{9.8\times 4.3}\\\\m=2.34\ kg[/tex]

So, the mass of the object is 2.34 kg.

27 points will mark brainliest if correct

A freeway exit curves with a radius of 30 m and a posted speed limit of 17.5 m/s. What is your radial
acceleration if you take this exit at the posted speed?
A.7.3 m/s2
B.3.5 m/s2
C.1.3 m/s2
D.10.2 m/s2

Answers

Answer:

10.2 m/s^2

a=v^2/r

the angle at which light strikes a surface is called the:

Answers

Answer:

Angle of incidence

Explanation:

When light is reflected from a surface, the angle of incidence is always equal to the angle of reflection, where both angles are measured from the path of the light to the normal to the surface at the point at which light strikes the surface. This equality is known as the law of reflection.

Jeff found the key to exit the tower and wanted to give it to Rapunzel. If her hand is 200m above the ground, what is the required velocity for Jeff to toss the key to reach her in m/s?​

Answers

Answer:

10M/S

Explanation:

DUE TO GRAVITY

What does it mean to say that the electric current from a wall socket is 120 V AC

Answers

It means someone is confused. 120 V ac is the root mean square value of the voltage NOT the current. It means the voltage from the socket is equivalent to a 120 Volts from a direct current supply.
Other Questions
The area of a trapezoid is given by A=1/2(B+b) where A is the height B is the big base and b is the small base. We are going to plant a trapezoid shaped flower garden. What would the height of the garden be if the area was 27 ft squared and the big base was 10 and the small base was 8? Include units College Alisha is putting cheese cubes and crackers onto small plates. She has 24 cubes of cheese and 40 crackers. She want both cheese and crackers on each plate and each plate must have the same number of cheese cubes and the same number of crackers. What is the greatest number of plates she can make using all the cheese and crackers. Add another set of points that are 8 units below points A, B, C, and D. This time, you'll need to rotate the lines into a different orientation. Connectthe points you created to form another polygon that is congruent to ABCD. When you're done, you'll have translated polygon ABCD down by 8units.Measure the slopes of the line segments (i.e., construction paths) you created. Record the measurements in the table. Which solutions have a density greater than 1.0 g/mL?Mass = 888 g Volume = 800 mLMass = 7.8 g Volume = 8.7 mlMass = 725 g Volume = 715 mLMass = 1.3 g Volume = 1.1 mlMass = 18 g Volume = 19 mLMass = 1.25 g Volume = 1.78 ml If a person's fear response to a specific situation or object is disproportionate to the actual threat posed by the stimulus, the individual is said to have a(n):_____.a. phobia.b. compulsion. c. delusion. d. aversion. Is this statement true or false?If one or more substances change into new substances, a chemical change occurred.truefalse Help! Due tomorrow!!Paragraph 4: Goliath beetles are truly the giants of the insect world, and their formidable presence leaves a lasting impression on those who view them. Question: what does the use of the word formidable in paragraph 4 reveal about the authors attitude toward Goliath beetles?A. The author thinks Goliath betters are impressiveB. The author thinks Goliath beetles are violent what is an right angle and obtuse angle? The cities of Fort Worth and Dallas both increased dramatically in size in the late 1800s in large part because of newA) highways.B) seaports.C) airports.D) railroads. Explain how integrity affects different stakeholder groups Actividad 4Your class is planning a trip to Spain. There are many places to go andmany things to see. Help your classmates by writing about what youwould like to do there. (You may add to the list provided.)Modelo: ir al museo del PradoYo ira al museo del Prado.1. visitar el palacio de Carlos V2. pasar mucho tiempo en las plazas famosas3. sacar fotos del acueducto romano4. ver la Universidad de Salamanca5. comer cerca del Alczar de Segovia What had helped speed up the movement west and increase the conflict between Native Americans and settlers? Group of answer choicesshipswagonstrainscanals Frank and ann come into darcy's room. frank asks darcy for her car keys. darcy looks in her pockets. she tells frank and ann to wait while she goes into the other room to look for the keys. use the drop-down menus to set the scene. darcy, do you have the keys? darcy: i left them upstairs. wait here for a minute. How does cinna's request to get brutus involved affect cassius? select two options. Cinna's request makes cassius reconsider including brutus. Cinna's request makes cassius ask him to take an incriminating letter to brutus. Cinna's request makes cassius trust him to return to pompey's theatre and meet cassius there. Cinna's request makes cassius seek out new and more loyal consipirators. Cinna's request makes cassius weigh the events of the night and postpone his planned meeting 1. Which of the following best describes the main theme of the passage? * A. Parents know best and only want to protect their children.B. Imagining yourself in another person's position is a rare gift.C. Resisting social pressure from friends requires great courage.D. Friends who encourage you to face your fears are valuable and rare. The ______ connects the third and fourth ventricles and is found in the mesencephalon (midbrain). Multiple choice question. cerebral aqueduct reticular formation periaqueductal gray matter superior colliculus - What transformation is described by thenotation (x, y) = (x-3, y)?A translation left 3 unitsB translation down 3 unitsC translation right 3 units Why was the Roman Empire divided into the Eastern and Western Roman Empires in 284 CE?The government of one half of the empire had fallen apart.Half of the Roman Empire had been conquered by a new leader.O The Roman Empire had grown so large that it was difficult to rule.The church had had a major disagreement that had caused a splitSorry the last one didnt have the choices A babysitting kit might include: A. Emergency contact numbers B. A list of fun things to do C. CPR certifications D. All of the aboveone or the other write at least 3 different expressions that are eqivalent to -1/2 (-12x + 30)