The acceleration it's the difference of speed (final speed - initial speed) divided by the time. So:
a = Δv/t
In this case the initial speed is equal to 0. The final speed is equal to 80 miles/hour. The time is 10s.
a = 80 miles/hour divided by 10 = 8 miles/hour
Answer:
8
Explanation:
Because as you can see 80/10= 8
Answer is 8
CUAL DE LAS SIGUIENTES LEYES NO PERTENECEN A LOS 3 PRINCIPIOS DE NEWTON? 1.LEY DE LA ATRACCION 2.LEY FUNDAMENTAL DE LA DINAMICA 3.LEY DE ACCION Y REACCION 4.LEY DE LA INERCIA
Answer:
La Ley de atracción no pertenece a los tres principios de Newton.
Explanation:
Las leyes de Newton son tres principios que sirven para describir el movimiento de los cuerpos, basados en un sistema de referencias inerciales (es aquél que está en reposo o se mueve con velocidad constante, es decir, no tiene aceleración).
Las 3 leyes de Newton son:
Primera Ley o Ley de Inercia : Esta ley enuncia que todo cuerpo permanece en su estado de reposo o de movimiento rectilíneo uniforme a menos que otros cuerpos actúen sobre él. Explica que para modificar el estado de movimiento de un cuerpo es necesario actuar sobre él. Segunda ley o Principio Fundamental de la Dinámica : Esta ley dice que la fuerza que actúa sobre un cuerpo es directamente proporcional a su aceleración. Es decir, si sobre un cuerpo actúa una fuerza, dicho cuerpo modificará su velocidad, es decir, adquirirá una aceleración. Dicha fuerza y su aceleración generada son proporcionales y están relacionadas mediante: F=m*a donde F es la fuerza aplicada, m es la masa del cuerpo sobre el que se aplica la fuerza y a es la aceleración adquirida por dicho cuerpo.Tercera ley o Principio de acción-reacción : Esta ley expresa que cuando un cuerpo ejerce una fuerza sobre otro, éste ejerce sobre el primero una fuerza igual y de sentido opuesto.Entonces, la Ley de atracción no pertenece a los tres principios de Newton.
How do atoms of different non metals stabilize themselves?
Pls help
Answer:
by taking other atoms that have one shell and putting it i the spot that they need t in
Explanation:
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
HELP MEEEEEEE
Which choice is the smallest in mass? neutron nucleus proton electron
Answer:
electron
Explanation:
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
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
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Ceres is a large asteroid that orbits the Sun between Mars and Jupiter. Ceres has a mass of 9.4 x 1020 kg and a radius of about 4.7 x 10° m.
If a spacecraft attempts to land on the asteroid, what acceleration due to gravity will it experience near the surface?
Answer:
The acceleration due to gravity near the surface of Ceres is approximately 0.284 m/s²
Explanation:
The given parameters are;
The mass of Ceres = 9.4 × 10²⁰ kg
The radius of Ceres, r = 4.7 × 10⁶ m
By Newton's law of gravitation, we have;
[tex]Gravitational \ force\ on \ the \ spacecraft \ near \ Ceres, \ F =G\dfrac{m_{1}m_{2}}{r^{2}}[/tex]
Therefore;
[tex]Acceleration \ due \ to \ gravity \ g =G\dfrac{m_{1}}{r^{2}}[/tex]
Where;
m₁ = The mass of Ceres = 9.4 × 10²⁰ kg
m₂ = The mass of the spacecraft
G = 6.6743 × 10⁻¹¹ N·m²/kg²
Substituting the values, we get;
[tex]g \ near \ the \ surface \ of \ Ceres = \dfrac{ 6.6743 \times 10^{-11} \times 9.4 \times 10 ^{20}}{(4.7 \times 10^5)^{2}} \approx 0.284 \ m/s^2[/tex]
The acceleration due to gravity near the surface of Ceres ≈ 0.284 m/s²
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
What is the net force acting on a 50-kg object that accelerates at a rate of +3.5 m/s/s?
Answer:
The answer is 175 NExplanation:
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 NHope this helps you
how fast did a NASA space shuttle travel?
Answer:
About 17,500 miles per hour.
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?
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
name the metal which form the filament of an electric bulb. what is the function of contact wire in bulb.
Answer:
tungsten wire
Incandescent light bulbs consist of an air-tight glass enclosure (the envelope, or bulb) with a filament of tungsten wire inside the bulb, through which an electric current is passed. Contact wires and a base with two (or more) conductors provide electrical connections to the filament.
A flashlight that is powered by 3 Volts and uses a bulb with a
resistance of 68. will have a current of Amps
For resonance to occur, the object must experience a frequency equal to its what?
period
wavelength
amplitude
natural frequency
Answer:
natural frequency
Explanation:
Answer: correct answer is {d}
Explanation: i got it right on my assesment
A student is making some changes to a circuit he built. He connected a battery to a circuit that contained a light bulb. He decided to change the light bulb to a higher resistance, but he wanted to keep the current the same. What will he need to do?
A. Increase the voltage by adding a battery with greater volts.
B. It is impossible to change your resistance and keep the current the same.
C. Keep the same exact set up as he originally made.
D. Decrease the voltage by adding a bigger battery with more volts, so the current an flow the same.
Answer:
B
Explanation:
Makes more sense if you want to keep the current the same>
Answer:
a
Explanation:
thats what i put ithink its wrong tho
How can the potential energy in magnets be used to create kinetic energy in an object without making contact?
Answer: If you move a magnet quickly through a coil of copper wire, the electrons will move - this produces electricity.
Explanation:
Which surface applied the greatest force of friction on the object?
Answer:
Which surface applied the greatest force of friction on the object?
Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force.
I hope you helped>_<
Follow me for more answersA ball is thrown horizontally with an initial
velocity of 20 m/s from the top of a tower
60 m high. What is the initial vertical
velocity of the ball?
a. O m/s
b. 20 m/s
c. 3.5 m/s
d. 9.81 m/s
The initial vertical velocity of a ball thrown horizontally with an initial velocity of 20 m/s from the top of a 60 m high tower is 0 m/s (option a).
The ball is thrown horizontally, so its velocity will have only components in the x-direction (horizontal). The components of the initial velocity in the y-direction (vertical) will be zero.
For a ball's velocity to have components in the vertical and horizontal direction, the ball must be thrown at a certain angle to the ground, describing a parabolic movement.
In a parabolic movement, the vertical and horizontal components of the velocity would be:
[tex] v_{x} = v_{i}cos(\theta) [/tex]
[tex] v_{y} = v_{i}sin(\theta) [/tex]
Where:
[tex] v_{i} [/tex]: is the initial velocity
θ: is the angle
Therefore, the initial vertical velocity of the ball is zero (option a).
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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
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.
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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
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.
A car increases velocity from 30 m/s to 60 m/s in 4 seconds. Calculate the average acceleration of the car over this time.
0.3 m/s2
7.5 m/s2
0.6 m/s2
4.8 m/s2
Answer:
B.7.5m/s2
Explanation:
average acceleration=change invelocity/time taken
a=(60-30)/4
=7.5m/s2
The average acceleration of the car 7.5 m/s²
The parameters given in the question are;
initial velocity= 30 m/s
final velocity= 60 m/s
time= 4 seconds
The formula that can be used to calculate the average acceleration is
= final velocity-initial velocity/time
= 60-30/2
= 30/2
= 7.5
Hence the average acceleration is 7.5 m/s²
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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?
What is the deceleration of a truck that takes 8.5 seconds to decrease its velocity from 35 m/s to 5 m/s?
please help! also specify if you are saying the question letter or the letter on the track when u answer :)
What is the acceleration of a 2kg object that experiences 75N of force?
Answer:
37.5 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{f}{m} \\ [/tex]
f is the force
m is the mass
From the question we have
[tex]a = \frac{75}{2} \\ [/tex]
We have the final answer as
37.5 m/s²Hope this helps you
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
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
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?
Answer: 25
Explanation:
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
Answer:
The anwser is b
Explanation:
Answer:
the answer is B
I know because i just did it
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
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.
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what is the what is the name of the new palace of Londonwhy it make kota kota kota kota
Answer:
Engraving of the city of Kota from the east by Edward Francis Finden (1791-1857) and Patrick Young Waugh (1788-1829). Plate 2 of the 'Annals and antiquities of Rajast'han or the Central and Western Rajpoot States of India' published in London in 1832.
The Rajput city of Kota in southern Rajasthan was founded in the 14th century within the borders of the state of Bundi; it became the capital of an independent princely state of the same name in the early 17th Century. During the reign of the Mughal Emperor Jahangir, Rao Ratan Singh, the ruler of Bundi, gave the small principality of Kota to his son, Madho Singh. The Kota fort he gained possession of was built in c. 1264 by Rajkumar Jait Singh of Bundi and contains the city palace. It is situated on the bank of the River Chambal where it meets its tributary, the Shahi Dehra. This engraving shows a view of the Chambal with the ramparts and bastions of the fort rising from the rivers edge behind.
Explanation:
How many kilograms in 17,000 mg?