Answer:
6N
Explanation:
F = m × g
= 0.6 × 10
= 6N
to find the force you first have to convert the mass to kg by dividing 600 by 1000 giving you 0.6
then you can multiply the mass times the gravity giving you a gravitational force of 6N
A car moves with an average speed of 45 mph. How long does a car take to travel 90 miles?
Answer:
It took 2 hours
Explanation:
[tex]{ \bf{time = \frac{distance}{speed} }} \\ [/tex]
distance is 90 miles
speed is 45 miles per hour
[tex]t = \frac{90}{45} \\ \\ t = 2 \: h[/tex]
Answer:
2 hours
Explanation:
45 times 2 is 90
Convergent plate boundaries are when plates
collide
move past each other
move apart
Explanation:
Collide is your answer
have a good day.
1. Review the data collected in the lab and explain the movement of the cart relative to the reference point(starting point). Be sure to mention how far from the origin the cart gets in each time interval.
2. Review the data collected in the lab and determine the relationship between the position of the car relative to the reference point and the amount of time in each time interval in other words as time goes by how does the position change?
3. For this response he will show your work on calculating the speed of the car during the lab remember you are used to change and slope equation or (y^2-y^1)/(x^2-x^1).
Now let’s make connections to the data table the horizontal variable is the time which we will represent with t and the vertical variable is position which we will represent with an x using this we can rewrite the equation above to the following
(final position - initial position)/
(final time - initial time)
When the data of the position and time are available, the velocity which is the ratio of change in position to change in time which is the same as the slope of the graph of the data can be calculated. For the car, we have;
1. The car moves progressively further as the time interval increases
2. The relationship between the position of the car and the time interval is that the car moves approximately 0.02 units of distance for each change in time of 0.05
3. The speed of the car is 0.398
The reason for arriving at the above values are as follows:
1. From the given data, we have that the cart moves progressively further from the start for each time interval increase, such that the cart moves progressively further from the origin in each time interval increases
[tex]\begin{array}{|c|c|} \mathbf{ Time} & \mathbf{ Position}\\2.2&0.8963\\2.25& 0.9164\\2.3 & 0.9375\\2.35 & 0.9581\\2.4 & 0.9759\end{array}\right][/tex]
2. From the given data, we have;
At time t = 2.2, the position = 0.8963
At time t = 2.25, the position = 0.9164
The change in position for a change in time from 2.2 to 2.25 is, Δx = 0.9164 - 0.8963 = 0.0201
Similarly, for the change in time from 2.25 to 2.3, which is a change of 0.05 seconds, we have;
Δx = 0.9375 - 0.9164 = 0.0211
The next interval is 2.3 to 2.35, Δx = 0.9581 - 0.9375 = 0.0206
Therefore, the change in the distance from the origin increases by approximately 0.02 for each increase in tome by Δt = 0.05 seconds
3. The slope equation is presented as follows;
[tex]Slope = \dfrac{y_2 - y_1 }{x_2 - x_1}[/tex]
The speed of the car is given by the slope of the distance time graph, where;
The horizontal variable, x, is the time, t (x = t)
The vertical variable, y, is the position, x (y = x)
Based on the given assignment of the variables to the x, and y, variables, we have;
[tex]Slope = Speed = \dfrac{y_2 - y_1 }{x_2 - x_1} = \dfrac{x_2 -x_1}{t_2 - t_1} = \mathbf{\dfrac{Final \ position - Initial \ position }{Final \ time - Initial \ time}}[/tex]
Plugging in the values in the table, we have;
[tex]Speed = \dfrac{Final \ position - Initial \ position }{Final \ time - Initial \ time} = \mathbf{\dfrac{0.9759 - 0.8963 }{2.4 - 2.2}} = 0.398[/tex]
The speed of the car = 0.398
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5. A ball with momentum of 16 kg x m/s strikes a ball at rest. What is the total momentum of both balls after the collision? a. -16kg x m/s b. -8 kg x m/s c. 8 kg x m/s d. 16 kg x m/s? help please
Answer:
D. 16 Kgm/s
Explanation:
Let the momentum of the two balls be A and B respectively.
Momentum A = 16 kgm/s
Momentum B = 0 kgm/s (since the ball is at rest).
Total momentum = A + B
Total momentum = 16 + 0
Total momentum = 16 Kgm/s
Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.
Mathematically, momentum is given by the formula;
Momentum = mass * velocity
A snail at position 3 cm moves to position 20 cm in 8 seconds
What is it's velocity ?
What is it's displacement ?
Answer:
no worries
Explanation:
Leave it to me.
Answer:
17 cm
Because the equation you're using is ∆d=df
a hot metal block is placed into 50g of water in an insulated container the water increases in temperature from 20c to 32c the specific heat capacity of water is 4200j/kgk calculate the quantity of heat energy supplied to the water from the metal
Answer:
25,000 joules
given the formula
Q=Mc(final temperature - initial temperature)
M=50 grams convert to kilogram 0.5
c= 4200 j/kg/k
final temperature=32c
initial temperature=20c
Why is carbon said to provide a “backbone” in many molecules?(1 point)
Carbon atoms can form chains and branches with each other, and other atoms can attach to these.
Carbon atoms have long narrow shapes, allowing many other atoms to attach to them.
Carbon atoms have full shells of electrons, allowing electrical signals to pass through them easily.
Carbon atoms have half-full shells of electrons, allowing electrical signals to pass through them easily.
Answer:
The carbon atom has unique properties that allow it to form covalent bonds to as many as four different atoms, making this versatile element ideal to serve as the basic structural component, or “backbone,” of the macromolecules.
Carbon is said to provide a “backbone” in many molecules because Carbon atoms can form chains and branches with each other, and other atoms can attach to these, therefor the correct answer is option A
What is a Chemical compound?The chemical compound is a combination of two or more either similar or dissimilar chemical elements, for example, H₂O is a chemical compound made up of two oxygen atoms and a single hydrogen atom.
As given in the problem carbon is said to provide a “backbone” in many molecules because Carbon atoms can form chains and branches with each other, and other atoms can attach to these.
The fact that carbon atoms may share electrons with one another to build lengthy chains with other carbon atoms accounts for the enormous variety of organic molecules. Catenation is a characteristic of carbon that makes it special. By transferring their valence electrons to neighboring carbon atoms, carbon atoms can create lengthy chains.
Thus, therefore the correct answer is option A
Learn more about a chemical compound from here
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what is the name of the chart that contain elements?
Answer:
Element Chart
Explanation:
It is a chart that provides many different elements.
The elevators in the John Hancock building in Chicago move 783 ft in 33 s. What is this speed in miles per hour?
Answer:
16.18 mph
Explanation:
the speed of elevators =
(783×3600)/(33×5280) =
2,818,800/174,240 = 16.18 mph
what is the density of a 75 g block of wood measuring 12 cm x 8cm x 9cm
Answer:
density is equal to mass divided by volume (m/v)
volume: 12×8×9=864cm³
75÷864=0.09
Answer: 0.09g/cm³
Can someone tell me which is which on what i put i dont know what i should put
estimate my age in seconds 14 years old
The acceleration of a particle is given by a = c1 + c2v, where a is in millimeters per second squared, the velocity v is in millimeters per second, and c1 and c2 are constants. If the particle position and velocity at t = 0 are s0 and v0, respectively, determine expressions for the position s of the particle in terms of the velocity v and time t.
The expression for the position of the particle in terms of velocity and time is given as, s = vt
The given expression:
[tex]a = c_1 + c_2v[/tex]the unit of a = mm/s²the velocity, v = mm/sc₁ and c₂ are constantthe position of the particle at time, t = 0, is s₀ and v₀To find:
The expression for the position s of the particle in terms of the velocity v and time tDetermine the value of the constants from second equation of motion given as:
[tex]s = vt + \frac{1}{2}at^2\\\\substitute \ the \ given \ value \ of \ a\\\\s = vt + \frac{1}{2}(c_1 + c_2v)t^2\\\\s = vt + \frac{1}{2} c_1 t^2 + \frac{1}{2} c_2vt^2\\\\divide \ through\ by \ t^2\\\\\frac{s}{t^2} = \frac{v}{t} + \frac{1}{2} c_1 + \frac{1}{2} c_2v\\\\multiply \ through \ by \ 2\\\\\frac{2s}{t^2} = \frac{2v}{t} + c_1 + c_2v\\\\when \ t = 0\\\\0 = 0 +c_1 + c_2v\\\\c_1 + c_2v = 0\\\\from \ the \ original \ equation;\\\\s = vt + \frac{1}{2} (c_1 + c_2v)t^2\\\\[/tex]
[tex]s = vt + \frac{1}{2}(0)^2\\\\s = vt[/tex]
Thus, the expression for the position of the particle in terms of velocity and time is given as, s = vt
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A bicyclist is traveling at +25m/s when he begins to decelerate at -4m/s2. How fast is he traveling after 5 seconds
Answer:
+5m/s
Explanation:
When doing the math we figure out that e is going to be slowing down at -4m/s² for 5 seconds. In total he is slowing down -20m/s which we take from the total speed of +25m/s to get his current new speed.
Help PLEASE ITS DUE TODAY
Hi :)
The formula for velocity is
v = displacement / change in time
velocity = 100 m / 4 seconds
velocity = 25 m/s
The formula for velocity is
v = displacement / change in time
velocity = 100 m / 4 seconds
velocity = 25 m/s
5 reasons why people should use electricity wisely
Answer:
1. heating
2. entertainment
3. cooling
4.educational purpose
5.comfort
the density of the metal is 8.9g/cm³.what does it mean. What is the importance of the value
Density of the metal is 8.9g/cm^3
It means per 1cm^3 Volume there is 8.9g of Mass occupied .Density:-
[tex]\boxed{\sf Density=\dfrac{Mass}{Volume}}[/tex]
SI unit:-
SI unit of density is kg/m^3
CGS unitCGS unit of density is g/cm^3
Record the length of the line shown in centimeters.
7.30
7.12
7.3
7.28
Please help will be marked most brainlist !!
Zooming I. On the image the red line is just short of the 3rd line past the 7 so it is not 7.3 but just a little under.
Answer: 7.28
what is pulley? How does it help in lifting weight?
Hey there!
A pulley is a "system" that has a rope attached to carry heavy materials off the ground. Once you pull the rope, the heavy item will be carried.
Hope this helps!
Have a great day!
In your own words, provide two examples of scientific data that scientists use to explain how the Big Bang could
have been the birth of the Universe.
Explanation:
One example of how the big bang could have been the birth of the universe is the expansion of it... (Expand on it) (It says in your own words)
According to the graph the acceleration of the object is ?
A) Constant
B) decreasing
C) increasing
D) zero
Answer:
your answer is (B) decreasing
I hope it's helps you
Any two waves that meet as they travel through the same medium will interact. If the two waves are in phase their crests will coincide and they will experience _____ interference, producing a wave with a(n) _____ amplitude.
Answer:
constructive
alpitude
A car has steady speed of 8 m/s .How far
does the car travel in 8s
Answer:
Explanation:
Distance traveled = steady speed * time duration = 8m/sec * 8 sec = 64 meters
Answer:
64 m
Explanation:
Multiply 8 m by 8.
đo cường độ dòng điện bằng dụng cụ gì
Answer:
Explanation:
Dhdhfhfjjfjffj
Why is running or jogging good aerobic excercise? Explain
Answer:
Running is faster, uses more kilojoules and demands more effort from the heart, lungs and muscles than jogging. Running requires a higher level of overall fitness than jogging. Both running and jogging are forms of aerobic exercise.
Explanation:
on the way to school the bus speeds from 20 m/s to 36 m/s in 4 seconds. what distance does the bus cover in this time frame
Answer:
d=s
t
d=36
4
d=10m/s
Explanation:
distance is equal to speed over t therefore 36 divide by 4 is 10
Read the ruler in millimeters to the correct degree of precision
3.50
3.55
35
35.1
Answer:
The answer is = 35.1 you can see by zooming.
Answer:
The answer would be 35.1
What type of evidence is needed for a hypothesis to be supported or not supported?
O demonstrative evidence
O observational evidence
O physical evidence
O circumstantial evidence
Answer:
Answer in Observational evidence (b)
The evidence needed to formulate a hypothesis is observational evidence. From keen observations, we are formulating a scientific hypothesis.
What is hypothesis ?Hypothesis is a plausible scientific statement which predicts a process or result of an experiment based on observations. Hypothesis can be made from well established scientific records also.
Some are formulating hypothesis based on some intuitions, while some others are formulated based on inductions or deductions. An experiment starts from a clear cut hypothesis.
A hypothesis must be testable, falsifiable. A scientific hypothesis must be based on a strict observation and for a considerable time and the observations must support for the statement derived for the solution.
Hence, the evidence is needed for a or a hypothesis to be supported or not supported is observational evidence.
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Is ambition a good or bad thing?
Answer:
some amount of ambition is good for your motivation but excess ambition is dangerous.
1. A car starts from rest and accelerates uniformly for 8.0 s. It reaches a final speed of 15
ms1
a. What is the acceleration of the car?
b. What is the average velocity of the car?
C. Calculate the distance travelled by the car.
Answer:
a. [tex]a=1.875\,ms^{-2}[/tex]
b. [tex]v_{0} =7.5\,ms^{-1}[/tex]
c. [tex]s=60\,m[/tex]
Explanation:
Given,
[tex]u=0\,ms^{-1}\,;[starts\,from\,rest]\\v=15\,ms^{-1}\\t=8\,s[/tex]
a. We know,
∴[tex]v=u+at\\=>15=0+a*8\\a=1.875\,ms^{-2}[/tex]
b. We know,
∴[tex]s=\frac{u+v}{2}*t\\=>s=\frac{0+15}{2}*8\\s=60\,m[/tex]
average velocity,[tex]v_{0} =\frac{s}{t}=\frac{60}{8}=7.5\,ms^{-1}[/tex]
c. From b, the answer is 60 m
hope you have understood this....
pls mark my answer as the brainliest
