Answer:
An electron.
Explanation:
+
- n n -
+
+ = Protons
n = neutrons
- = electrons
The distance from the cafeteria to gym is 0.112 kilometers, How many millimeters would it be?
what is the density of alcohol?t
Answer:
789 kg/m
Explanation:
789 kg/m good luck
Explanation:
The density of alcohol is 800 Kg/m^3 .
newtons second law of motion-skateboard
Answer:
??? I don't get it, please explain. What is your question????
Explanation:
There are two ways that an object can get in motion. What are they?You may use the following sentence frame:An object can get in motion by a ____ or a ____.
a mountain biker cycling a trail traveling at 5.4 m/s begins to slow down when she notice a wooden bridge ahead has flooded. if she begins braking when she is 15.0 m from the bridge and comes to a stop just before reaching the bridge, how long did it take her to stop ?
Answer:
t = 5.56 s
Explanation:
In order to calculate the time interval taken by the mountain biker to come to a stop, we will use third equation of motion and first find the deceleration:
2as = Vf² - Vi²
where,
a = deceleration = ?
s = distance = 15 m
Vf = Final Velocity = 0 m/s
Vi = Initial Velocity = 5.4 m/s
Therefore,
2a(15 m) = (0 m/s²) - (5.4 m/s)²
a = - 0.972 m/s²
Now, we use 1st equation of motion:
Vf = Vi + at
therefore,
0 m/s = 5.4 m/s + (-0.972 m/s²)(t)
t = (5.4 m/s)/(0.972 m/s²)
t = 5.56 s
The time taken should be t = 5.56 s
Calculation of the time taken:here we used the third equation of motion
But first we determine the deceleration.
We know that
2as = Vf² - Vi²
here,
a = deceleration = ?
s = distance = 15 m
Vf = Final Velocity = 0 m/s
Vi = Initial Velocity = 5.4 m/s
So,
2a(15 m) = (0 m/s²) - (5.4 m/s)²
a = - 0.972 m/s²
Now, we use 1st equation of motion:
So,
Vf = Vi + at
0 m/s = 5.4 m/s + (-0.972 m/s²)(t)
t = (5.4 m/s)/(0.972 m/s²)
t = 5.56 s
Hence, The time taken should be t = 5.56 s
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Convert 66.2 mi/h to m/s. 1 mi = 1609 m.
Answer in units of m/s.
Answer:
Explanation:
66.2mi/h to m/s
[tex]\frac{1609m}{1mi}[/tex]×[tex]\frac{66.2mi}{1h}[/tex]×[tex]\frac{1h}{60min}[/tex]×[tex]\frac{1min}{60s}[/tex]
mi will go with mih with h min with minm/s is left[tex]\frac{1609*66.2}{60*60}[/tex]= 29.58772222
Pls make sure of the way of solving to be sure...
A girl cycles for 3hrs at a speed of 40km/h.What distance did she travel?
Answer: 120 km
Explanation:
Distance= speed x time
her speed is 40km/hr
and her time was 3 hours
40x 3= 120 km
How many minutes are in 240 days?
Answer:
Hi there!
Your answer is;
345,600 mins per 240 days
Explanation:
First, start small
How many minutes are in one hour?
60mins per 1 hr
How many minutes per one day?
60 × 24= 1440
1440 mins per 1 day
How many minutes per 240 days?
1440× 240= 345600
345,600 mins per 240 days
Hope this helps
what is the meaning of the state the problem ?
Answer:
A problem statement is a concise description of an issue to be addressed or a condition to be improved upon. It identifies the gap between the current (problem) state and desired (goal) state of a process or product.
Explanation:
Modern scientists say that electrons are found in a ...
a. cloud
b. orbital
c. pudding
d. orb
A truck filled with supplies sets out across the country at 9 A.M. It is traveling at a constant speed of 80.0 km/h. Two hours later, a train starts out from the same location with similar supplies going to the same destination. The train travels at a constant speed of 110 km/h.
Answer:
At 11 AM, the train is a constant speed of 110 km/h. when the truck is 160 ahead. When they meet, it will be 2 PM
Explanation:
At the train's first hour he moved to 110 km. The truck is at 160 km. The second hour includes train at 220 km, with truck at 240. At 2 PM, they are at the same place.
it is important to know the difference between atoms
Answer:
yes
hope this will help you
Help Meeee Please!!!!! This was due so long ago... DO NOT REPORT, THERE IS NO REASON TO REPORT! Assignment: Weathering in Action Exploration
You can see science in action all around you. In this activity, you will observe weathering.
Signs of Weathering| Mechanical or Chemical? Description of location
Flakes of brick -----
Cracks in rocks -----
Lichen growing on rocks------
Roots or plant growth ---------
making cracks in concrete
Worn away statues-------
Exposed rocks ----------
Rust on rocks -----------
Example You Found:
Sketches
Type of weathering:
Sketch:
Type of weathering:
Sketch:
Type of weathering:
Sketch:
I really need help, I don't understand this so please help me.
Below is the document to this it is the exact same as the question.
Answer: Chemical
Explanation: because it is changeing its chemical structure if its wrong sorry .
Answer:
chemical, chemical, chemical, mechanical, chemical, mechanical, chemical. im still trying to figure out the rest!
Explanation:
The current, 2019, women's world record for the
400-meter run around an oval track is held by Marita Koch, with a time of 47.60
seconds. What was her average velocity during this race?
a) 4.760 m/s
b) 0 m/s
c) 0.1190 m/s
d) 8.403 m/s
Answer: D
8.403 m/s
Explanation:
Given that the women's world record for the 400-meter run around an oval track is held by Marita Koch, with a time of 47.60
seconds.
Her average velocity during this race will be
Velocity = distance/ time
Velocity = 400 / 47.6
Velocity = 8.403 m/s
Therefore, her average velocity during this race will be 8.403 m/s
D is therefore the correct answer.
How does population stimulate social change?
Answer:
A change in the size of the population may bring about changes in the culture. For example, food brought to this country by immigrant groups have become common in many American kitchens. Population increases and decreases affect the economy. For example, by increasing the demand for goods and services, a growing population may increase employment and stimulate the economy. An increase in the general population also means that there are more people occupying the same amount of space, which creates more crowded conditions. In addition, the larger population brings increased demand for energy, food, housing, schools, stores, and transportation. People also bring about changes simply by moving from one place to another. Migrations of people within a country can cause social changes, such as the loss of regional distinction within the country. Social and cultural changes also result from changes in the average age of a population. When fewer people are having babies, for example, there is less need for schools, recreation centers, and other services geared toward children.
Explanation:
Population changes stimulate social change in a variety of ways, including direct and indirect changes in food habits and the educational system, migration patterns, and people's overall mental and physical health.
What is the effect of population growth?Population growth is a negative factor for the environment because rural areas are converting to urban areas and more people are migrating to cities. Due to this rapid population growth, a food shortage will occur, the cost of living will increase in the advanced cities, the demand will increase but not the supply, and this will lead to mental pressure on the generation to keep a place to live and food to eat and in this way the social change will happen.
Hence, population changes stimulate social change in a variety of ways, including direct and indirect changes in food habits and the educational system, migration patterns, and people's overall mental and physical health.
Learn more about population growth here.
https://brainly.com/question/28172895
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Lexy throws a dart with an initial velocity of 25 m/s at an angle of 60° relative to the ground. What is the approximate vertical component of the initial velocity?
0.5 m/s
0.87 m/s
12.5 m/s
21.7 m/s
Answer:
Option D: 21.7 m/s
Explanation:
We are given;
Initial velocity; u = 25 m/s
Launch Angle; θ = 60°
In projectile motion, the component of velocity vertically and horizontally are;
Vertical component; v = u sin θ
Horizontal component; v = u cos θ
Now, we want to find the approximate vertical component of the initial velocity.
Thus;
v = u sin θ
v = 25 sin 60
v = 25 × 0.866
v = 21.65 m/s ≈ 21.7 m/s
I took the test and got 21.7 m/s correct i am glad to help anytime.
During the power stroke energy released by combustion generates the force that:_______.
Explanation:
An IC engines means an Internal Combustion engine. Here, the combustion takes place in side a chamber or a cylinder internally, hence it is known as internal combustion engine.
Combustion is the process where oxygen reacts with the fuel and it burns to produce a large amount of force and heat. In each revolution of the crank, the engine creates a power stroke when the piston goes from the bottom dead center to the top dead center.
During each power stroke, the energy released forces the piston down and the crankshaft is rotated.
A hockey puck has a momentum of 3.8 kg•m/s [E]. If its
speed is 24 m/s what is the mass of the puck ? Express
your answer in scientific notation (a.bc x 10-0 kg)
Answer:
[tex]1.6 \times 10 { }^{ - 1} kg \\ [/tex]
Explanation:
I hope, it helped you.
A quantity that has magnitude & direction is called
Explanation:
VECTORS DEF: A vector is a quantity that has both magnitude and direction.
What is constant velocity in comparison to instantaneous velocity?
Will give Brainliest to the one that shows great effort with a correct answer.
Answer:
Please find the answer in the explanation
Explanation:
Constant velocity is the uniform velocity. That is, the velocity is steady and it does not change. You will have a constant velocity when you maintain a certain velocity for a long time without changing it.
At constant velocity, acceleration is equal to zero.
Instantaneous velocity is the change in distance in a specific direction per specific time. It is a velocity at a certain time. It is not uniform.
Change in instantaneous velocity is equal to acceleration.
when will an object dropped from rest attain a speed of 30 m/s?
Initial velocity = zero (i.e., free fall)
Final velocity = 30m/s
Acceleration due to gravity = 10m/s²
For a body falling freely under the action of gravity, g is taken positive[tex].[/tex]
◈ First equation of kinenatics :
⇒ v = u + gt
⇒ 30 = 0 + 10t
⇒ t = 30/10
⇒ t = 3s
Hence, object will attain a speed of 30m/s after 3s.
If you increase your work and decrease your time, you will haveA. more power.less power.the same amount of power.power rating can not be determined
If you increase your work and decrease your time, you will have A. more power.
Power (P) is the rate at which work is done. In the International System of Units, the unit of power is the Watt, equal to one joule per second. Mathematically, it is equal to work (W) divided by time (t).
[tex]P = \frac{W}{t}[/tex]
If you increase your work, you increase the numerator in the expression above. If you decrease your time, you decrease the denominator in the expression above. They both have the same consequence that is an increase in power, that is, more work done in less time.
If you increase your work and decrease your time, you will have A. more power.
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2. a) Force affects the body and results in different changes. The grid given below
has the words related to the effects of force. Find those words.
a) Force could be a push or a pull.
b) A force arises due to the interaction between two objects.
c) Force has magnitude as well as direction.
d) A change in the speed of an object or the direction of its motion or both implies a change in its state of motion.
e) Force acting on an object may cause a change in its state of motion or a change in its shape.
f) A force can act on an object with or without being in contact with it.
Answer:
Please find the answer in the explanation
Explanation:
Given that Force affects the body and results in different changes.
The grid that has the words related to the effects of force are :
a) Force could be a push or a pull.
c) Force has magnitude as well as direction.
e) Force acting on an object may cause a change in its state of motion or a change in its shape.
f) A force can act on an object with or without being in contact with it.
In the given diagram(in the resources) which kind of lever is mentioned? Also calculate the amount of load that can be lifted with an effort of 50N.
Answer:
Solution : Given,
Load (L) = ?
L×LD=E×ED
L=100 cm=50N×40 cm
L=40×50÷100
L=20N
Explanation:
How is NASA a catalyst to make the crew work better?
Answer:
with teamwork
Explanation:
you need to use team work so the right answer is C
A simple pendulum makes 10 oscillations in 20 seconds. What is the time period and frequency of its oscillation? with steps and formula
Answer:
When a simple pendulum makes 10 oscillation in 20 seconds, the time taken for each osillation
=20/10
= 2seconds
hence, as the time period is calculated to be 10secondd, the frequency of oscillation
=1/T
=1/2
= 0.5 here's
Shanai drove 40 miles to the west, then turned around and drove 70 miles to the east. Draw vectors that show each segment of her trip and the resultant displacement vector. Find her resultant displacement.
PLEASE HURRY WILL GIVE BRAINLIEST FOR FIRST ANSWER!!!
What is the kinetic energy of a ball with a mass of 0.5 kg and a velocity of 10 m/s? (Formula:)
25 J
53
503
1003
Please help!!
If you move 3 meters East and move 4 meters north what is the distance and what is the displacement?
Answer:
Si un objeto se mueve en relación a un marco de referencia (por ejemplo, si una profesora se mueve a la derecha con respecto al pizarrón, o un pasajero se mueve hacia la parte trasera de un avión), entonces la posición del objeto cambia. A este cambio en la posición se le conoce como desplazamiento. La palabra desplazamiento implica que un objeto se movió, o se desplazó.
Explanation:
El desplazamiento se define como el cambio en la posición de un objeto. Se puede definir de manera matemática con la siguiente ecuación:
\text{desplazamiento}=\Delta x=x_f-x_0desplazamiento=Δx=x
f
−x
0
start text, d, e, s, p, l, a, z, a, m, i, e, n, t, o, end text, equals, delta, x, equals, x, start subscript, f, end subscript, minus, x, start subscript, 0, end subscript
x_fx
f
x, start subscript, f, end subscript se refiere al valor de la posición final.
x_0x
0
x, start subscript, 0, end subscript se refiere al valor de la posición inicial.
\Delta xΔxdelta, x es el símbolo que se usa para representar el desplazamiento.
Debemos ser cuidados al usar la palabra distancia, ya que hay dos maneras de usar el término en física. Podemos hablar acerca de la distancia entre dos puntos, o podemos hablar de la distancia recorrida por un objeto.
La distancia se define como la magnitud o el tamaño del desplazamiento entre dos posiciones. Observa que la distancia entre dos posiciones no es la misma que la distancia recorrida entre ellas.
Es importante darse cuenta que la distancia recorrida no tiene que ser igual a la magnitud del desplazamiento (es decir, la distancia entre dos puntos). De manera específica, si un objeto cambia de dirección en su trayecto, la distancia total recorrida será mayor que la magnitud del desplazamiento entre esos dos puntos. Ve los ejemplos resueltos a continuación.
Which of the following is a scalar quantity?
Answer:
C. 100 ft/min
Explanation:
A scalar quantity has no direction.
A scalar with direction is called a vector.
Answer:
C. 100ft/min
Explanation:
A scalar quantity is a quantity that has a magnitude but no direction, a vector quantity is a quantity that has both a magnitude and a direction. The other three answers are vectors quantities while C. is a scalar.
