Answer:
C) close together and vibrating in place cross out
Explanation:
Solid, liquid and gas are the three types of matter. In solid, the molecules are tightly packed together. The intermolecular forces is very strong and the particles do not move from one place to another. The particles are so closely packed that they move at their own place and vibrate forth and back. The motion of the movement of the particle and its force are the two factors that help in determining the state of matter.
"Calculate the force of friction of a 5 kg steel block sliding down a 10 degree steel ramp." Would it be assumed the force is static or kinetic?
Answer:
kinedk engrerr
Explanation:
Which two terms describe salt (NaCI)
Answer:
Sodium chloride, regular table salt, is also known as the mineral halite.
...
Follow-Up Questions:
Find sodium and chlorine on The Periodic Table of the Elements. ...
NaCl is known as an ionic compound. ...
Chlorine is known as a diatomic molecule.
In the formulas for latent heat of fusion and latent heat of vaporization, what does Q represent?
the amount of heat released or absorbed by a substance
the mass of a substance
the amount of a substance that changes state
the temperature of a substance
Answer:
IT'S A
the amount of heat released or absorbed by a substance
Explanation:
PLEASE MARK ME AS BRAINLIEST
Answer:
(A)The amount of heat released or absorbed by a substance
Explanation:
Just took the test
Timed please help i would really appreciate it! i will try my best to mark brainliest!
Maria is late to the bus stop. Running to catch the bus, she travels 100m in 60s. What is her speed? *
16.7 m/s
600 m/s
1.67 m/s
Answer:
v = 1.67 [m/s]
Explanation:
Average velocity is defined as the relationship between space and time.
[tex]V=x/t[/tex]
where:
x = distance = 100 [m]
t = time = 60 [s]
now replacing:
[tex]V= 100/60\\V= 1.67[m/s][/tex]
Order the mechanical following waves from least energy to most energy.
Answer:
middle
top
bottom
under neith middle
A race car is accelerating at 5m/s and then speeds up to a final velocity of 12 m/s if the race car driver finished this let of the race in 6 seconds what was the car's acceleration
Answer:
the acceleration of the car is 1.167 m/s²
Explanation:
Given;
initial velocity of the race car, u = 5 m/s
final velocity of the race car, v = 12 m/s
time to finish the race, t = 6 s
The acceleration of the car is calculated as;
a = (v - u) / t
a = (12 - 5) / (6)
a = 1.167 m/s²
Therefore, the acceleration of the car is 1.167 m/s²
Answer:
1.167 m/s^2
Explanation:
Given that a race car is accelerating at 5m/s and then speeds up to a final velocity of 12 m/s if the race car driver finished this let of the race in 6 seconds what was the car's acceleration ?
From the question, the following parameters are given
Initial velocity U = 5 m/s
Final velocity V = 12 m/s
Time t = 6 s
According to the definition of acceleration:
Acceleration = change in velocity per time taken.
I.e
Acceleration =( V - U)/ t
Acceleration =( 12 - 5 )/6
Acceleration = 7/6
Acceleration = 1.167 m/s^2
Therefore, acceleration is 1.167 m/s^2
Which one!!!!!!!!!!!!
Answer:
3N to the right
Explanation:
Daniel steps on the gas pedal of his car, and the engine increases its performance from zero to
2700 rpms (rotations per minute). What are the frequency and period?
(Hint: frequency is cycles per second.]
Answer
The frequency and the period are 45 cycles/second and 0.023 seconds
Explanation:
The frequency of the engine is given by :
[tex]f=\dfrac{rpm}{60}[/tex]
We have, the engine increases its performance from zero to 2700 rpms.
Frequency,
[tex]f=\dfrac{2700}{60}\ \text{cycles per second}\\\\f=45\ \text{cycles per second}[/tex]
The time period of the engine is given by :
T = f/f
So,
[tex]T=\dfrac{1}{45}\ s\\\\T=0.023\ s[/tex]
Hence, the required frequency and the period are 45 cycles/second and 0.023 seconds respectively.
Match the term and the definition
Lesson 1.09
Question 5 options:
Stationary Front _
Cold Front _
Occluded Front _
Warm Front _
1. When a cold air mass and a warm air mass meet but are at a standstill, the boundary is called
2. If warm or more humid air presses forward and colder or drier air draws back, the boundary is called
3. If colder or drier air presses forward and warmer or more humid air draws back, the boundary is called
4. Sometimes a warm air mass can get caught between two cold fronts, which can force the warm air up into a wedge shape.
Answer:
1. When a cold air mass and a warm air mass meet but are at a standstill, the boundary is called stationary front.
2. If warm or more humid air presses forward and colder or drier air draws back, the boundary is called warm front.
3. If colder or drier air presses forward and warmer or more humid air draws back, the boundary is called cold front.
4. Sometimes a warm air mass can get caught between two cold fronts, which can force the warm air up into a wedge shape is called occluded front.
Explanation:
A stationary front is created when two air masses of different temperatures come together but remain stationary. A warm front is created when warmer, more humid air pushes forward and cooler, drier air pulls back.
What is the front?A front in a physical system can be thought of as the boundary between two distinct possible states (either stable or unstable). When two air masses with different temperatures come together but stay stationary, a stationary front is formed.
The correct matches are:
When a cold air mass and a warm air mass meet but are at a standstill, the boundary is called a stationary front.If warm or more humid air presses forward and colder or drier air draws back, the boundary is called a warm front.If colder or drier air presses forward and warmer or more humid air draws back, the boundary is called a cold front.Sometimes a warm air mass can get caught between two cold fronts, which can force the warm air up into a wedge shape, is called an occluded front.Therefore, When cooler, drier air pulls back and warmer, more humid air rushes forward, a warm front is formed.
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What is the weight of a 82.1 kg object on Jupiter, where the acceleration due to gravity is 24.5 m/s2?
The change in momentum for an object is equal to
Answer:
We conclude that the change in momentum of a body is equal to the impulse experienced by a body.
Explanation:
Considering the equation
F • t = m • Δ v
Here,
m • Δ v is basically a change in momentum of a body which is equal to the mass of the object multiplied by the change in its velocity.
Also,
F • t is called the impulse of the object.In the formula, it is clear that the impulse experienced by a body during the collision is basically a change in the momentum of the body.
In other words, the change in momentum of a body is equal to the impulse experienced by a body.
Therefore, we conclude that the change in momentum of a body is equal to the impulse experienced by a body.
When a student combed his dry hair for a long time, his hair began to stand up. Which of these has MOST LIKELY happened
Answer:
brainliest please
Explanation:
The answer would be static electricity
FILL IN THE BLANKS, 10 points!
The first law of thermodynamics describes how the heat added to a system is conserved. Heat ____ the internal energy of the system or is transformed into _______
, or both. Heat is just transformed, not created or destroyed.
Answer:
Heat _Energy___ the internal energy of the system or is transformed into _formula______
Explanation:
The first law of thermodynamics describes how the heat added to a system is conserved. Heat the internal energy of the system or is transformed into, or both. Heat is just transformed, not created or destroyed.
3. The number of revolutions made by a tire traveling over a fixed distance varies inversely to the radius of the
tire. A 12-inch radius tire makes 100 revolutions to travel a certain distance. How many revolutions would a
16-inch radius tire require to travel the same distance?
Answer:
Most people when asked, “What is the equation of a line?”, will answer, “y = mx + b”. This is the
equation of a line in what is called slope-intercept form where “m” is the slope and “b” is the yintercept. So, how do you find the equation of a line? There are several different ways that you can find
the equation of a line. I find the equation of a line everytime by following the same three steps:
Step 1: Find the slope of the line.
Step 2: Use the slope to find the y-intercept.
Step 3: Use steps 1 and 2 to write the answer.
I will explain these steps by looking a several examples. Please understand that there are often several
different ways to complete each math problem, but I have found through the years that students are most
successful when the do problems the same way each and every time they attempt the problem. If you
know a different way to find the answer that is great, but I am going to show how to do the problem one
way and use the same technique everytime I see this problem.
Explanation:
The ratio of number of revolution to the radius of the tire will be constant since the distance is constant. 16 - inch radius tire will require 75 revolutions to travel the same distance.
CIRCULAR MOTIONWhen all points in a body move in concentric circles is known as rotational or circular motion. Below are few facts about circular motion.
Speed is constantVelocity keeps changingAcceleration acts toward the center.Given that the number of revolutions N made by a tire traveling over a fixed distance D varies inversely to the radius r of the tire. That is
N [tex]\alpha[/tex] 1/r
N = K/r
K = Nr
Where K = Proportionality constant
If a 12-inch radius tire makes 100 revolutions to travel a certain distance, Then,
K = 100 x 12
K = 1200 rev inches
How many revolutions would a 16-inch radius tire require to travel the same distance?
by applying the same formula, let us substitute r for 16 inches and 1200 for K
K = Nr
1200 = N x 16
N = 1200/16
N = 75 revolutions
Therefore, 16 - inch radius tire will require 75 revolutions to travel the same distance.
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What other kind of simple machine is a special kind of lever?
saitama is the strongest
Please help with both questions thank you!
I think is:
(4)Inner core
(4)different Kingdome different species
hope this help :)
An oil tank has a base of area 2.5 m2 and is filled with oil to a depth of 1.2 m. The density of the
oil is 800 kg/m3. What is the force exerted on the base of the tank due to the oil?
A. 960N
B. 2400N
C. 9600N
D. 24 000N
Answer:
D. F = 24000[N]
Explanation:
To be able to calculate the force we must first find the pressure at the bottom of the tank. By means of the following equation:
[tex]P=Ro*g*h[/tex]
where:
Ro = density of the liquid = 800 [kg/m³]
g = gravity acceleration = 9.81 [m/s²]
h = elevation = 1.2 [m]
[tex]P=800*9.81*1.2\\P=9417.6[Pa][/tex]
Pressure is defined as the relationship between Force on the area.
[tex]P=F/A\\F=9417.6*2.5\\F = 23544 [N] = 24000[N][/tex]
The middle-C hammer of a piano hits two strings, producing beats of 1.60 Hz. One of the strings is turned to 250.00 Hz. What frequencies (in Hz) could the other string have? (Answer to the nearest 0.1 Hz.)
Answer:
248.5Hz or 251.5Hz
Explanation:
Given :
Beat frequency, Fbeat = 1.5 Hz
Frequency of string 1, f1 = 250 Hz
Frequency of string 2, f2 =?
Recall:
Fbeat = |f1 - f2|
1.5 = 250 - f2
f2 = 250 - 1.5
f2 = 248.5 Hz
OR
- Fbeat = |f1 - f2|
- 1.5 = 250 - f2
f2 = 250 + 1.5
f2 = 251.5 Hz
Hence, the two possible frequencies of the other string are 248.5Hz or 251.5Hz
Can Vehicles us bike lanes when they are empty?
What is the mass of an object that requires 100N of force in order to accelerate 10m/s2
Explanation:
Hey there!
Given;
Force (f) = 100 N
Acceleration (a) = 10m/s^2.
Mass (m)=?
We have;
Force = mass * acceleration.
So,
100 = m * 10
Or, 100 = 10m
Or, m= 100/10
Therefore, mass is 10kg.
Hope it helps....
Substances will expand when they change from gas to a liquid. True False
Answer:
True
Explanation:
Liquid expands so therefore it is truee
According to Einstein's theory of relativity, what happens to the mass of an object as the object approaches the
speed of light?
A. The mass of the object decreases.
B. The mass of the object increases.
C. The mass of the object remains the same.
Answer:
B
Explanation:
please mark me brainiest
I NEED AN ANSWER!
A sled going down a hill covered in snow eventually comes to
a stop. Explain why this happens in terms of energy. Use
the terms potential energy, kinetic energy , and friction.
Answer:
Before sled starts to move it has a potential energy due to the elevation...and then that potential energy converted to kinetic energy due to presence of a velocity...the sled will continue to move if their is no resesive force...but however friction force is presence that cause the sled to stop....
When a gas is compressed, its volume _____
Answer:
decreases
Explanation:
Answer:
Decreases
Explanation:
Wikipedia
What are three ways in which people use microwaves?
Answer:
Sample Response: They are used to transmit data, TV signals, and telephone signals. They are also used in ovens and radar.
Explanation:
20 points
A net force of 24 N is applied to an object for 5.0 s. The object is pushed a total of 5.2 m. What is the mass of the object? What equations will be used?
Answer:
S = V0 t + 1/2 a t^2 net distance traveled
5.2 = a/2 * 25
a = 10.4 / 25 = ,416 m / s^2
F = m * a
m = F / a = 24 / .416 = 57.7 N
A car engine has power than a horse because a car engine does the same amount of work in time. Yasmin and Raj each had 10 boxes of equal weight to stack next to each other on the same shelf, at the same height and in the same arrangement. Yasmin completed the task in 2 minutes, while Raj took 3 minutes to stack his boxes. Raj applied power than Yasmin because his stacking took time to do the same amount of work.
Answer:
A car engine has more power than a horse because a car engine does the same amount of work in time. Yasmin and Raj each had 10 boxes of equal weight to stack next to each other on the same shelf, at the same height and in the same arrangement. Yasmin completed the task in 2 minutes, while Raj took 3 minutes to stack his boxes. Raj applied less power than Yasmin because his stacking took more time to do the same amount of work.
Explanation:
A car engine has more power than a horse because a car engine does the same amount of work in less time. Raj applied less power than Yasmin because his stacking took more time to do the same amount of work.
What is power?The quantity of energy moved or converted per unit of time is known as power in physics. The watt, or one joule per second, is the unit of power in the International System of Units. Power is also referred to as activity in ancient writings. A scalar quantity is power.
Energy divided by time represents the dimension of power. The watt (W), which equates to one joule per second, is the unit of power in the International System of Units (SI).
Another popular unit of measurement is horsepower (hp), which is equivalent to a horse's power; one mechanical horsepower is equal to around 745.7 watts.
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Your 1500kg car is stuck behind a truck traveling 27 m/s. To pass it, you speed up to 34 m/s in
6.0 s. What power is required to do this?
Answer:
P = 53375[W]
Explanation:
First, we must use the following equation of kinematics, which allows us to calculate the acceleration value.
[tex]v_{f}=v_{o}+a*t[/tex]
where:
Vf = final velocity = 34 [m/s]
Vo = initial velocity = 27 [m/s]
a = acceleration [m/s²]
t = time = 6 [s]
Now replacing:
[tex]34=27+a*6\\a=1.167[m/s^{2} ][/tex]
Now we must use Newton's second law, which tells us that the sum of forces is equal to the product of mass by acceleration. In this way, we have the following equation.
ΣF =m*a
where:
F = force [N]
m = mass = 1500 [kg]
a = acceleration = 1.167 [m/s²]
[tex]F=1500*1.167\\F=1750[N][/tex]
Power is defined as the product of force by speed. But we have two speeds, the initial and the final. We must use the average speed to be able to estimate the power needed.
[tex]V_{average}=\frac{34+27}{2} =30.5[m/s][/tex]
And the power:
[tex]P=F*V_{average}\\P=1750*30.5\\P=53375[W][/tex]
Help!
If alcohol or drugs are used in small quantities, and with little or no damaging consequences, it's not usually
considered drug abuse.
A. True
B. False
If alcohol or drugs are used in small quantities, and with little or no damaging consequences, it's not usually considered drug abuse.
The correct option is A.
What is driver license?A person who has completed his 18 years of age, wants to drive any vehicle whether car or bike, he must have a license called the driver's license.
Drug abuse is the aggressiveness developed in person after drinking alcohol.
In countries, when a person takes in alcohol with little or no damaging consequences, he is not to be considered as drug abuse.
The given statement is True.
Thus, the correct option is A.
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Bu lasarati pushes the trycicle with a force of 20 N so that it moves 10m in the direction of the force. The effort made by Mrs. Lasarati amounts to...
Answer:
200 J
Explanation:
Given that,
Force, F = 20 N
Distance covered in the direction of force, d = 10 m
We need to find the effort made by Mrs. Lasarati. It will be given by :
W = Fd
W = 20 N × 10 m
W = 200 J
So, the required effort made by Mrs. Lasarati is 200 J.
