Answer:
The object will have an acceleration and the object's velocity will change.
Explanation:
If there is a net force acting on an object, the object will have an acceleration and the object's velocity will change. Newton's second law states that for a particular force, the acceleration of an object is proportional to the net force and inversely proportional to the mass of the object.
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if katie walks 2 feet forward and 5 feet backwards what distance did she walk?
Answer:
7 feet because 2 feet and 5 feet make seven.
4. Looking at the picture below, the DISTANCE traveled by this person
starting at position A to B to C to D to Ais*
Answer:
The distance traveled is 24 meters but the change in position is 0 meters because the person comes back to the same point.
Explanation:
To be straight it is 24 meters.
Calculate the velocity of a car traveling 0.75ters in 2.5 seconds using
meters/second (m/s)
Answer:
Distance covered:0.75
Time take:2.5
Velocity = distance/time
V=0.75/2.5
V= 0.3m/s
Hope this helpes
A snake slithered across the sidewalk in between two sign posts. At the first sign post his speed was
1.2 m/s. At the second sign post his speed was 1.2 m/s. This is an example of...
This is an example of Uniform Speed
EXPLANATION
Uniform Speed => no change in speed
Uniform Accelerations Speed => There is a change in speed, but the acceleration remains the same.
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thank you for helppp
Answer:
the moon is closer to the earth than sun
have a beautiful day
7. Navy use SONAR method to locate the position of submarine under water. The waves used in SONAR are A transverse waves. B electromagnetic waves. C. audible to human ear. D.audible to navy only.
Answer:
A. transverse waves
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thanks:)
Cosmic abundance is made up primarily of what gases?
Answer:
Hydrogen and Helium
Explanation:
The abundance of chemical elements in the universe was made up of large amounts of these 2 gases, the rest made up only about 2% of the universe. Which were produced mostly by supernovae and certain red giant stars
NEED HELP!!!!! 12 POINTS!!!!
If there are two objects of equal size but object A is heavier than object B, which statement is TRUE according to Newton’s second law of physics?
OPTIONS:
A.
Object A will require less force to be set in motion and will travel faster.
B.
Object B will require less force to be set in motion and will travel faster.
C.
Object A will require more force to be set in motion but will travel faster than object B.
D.
Object B will require more force to be set in motion but will travel faster than object A.
PLEASE NO LINKS
What is 4.33 and 2.16?
Suppose a man pushes a crate with a force of 20 N north. What is the magnitude and direction of the reaction force?
A. 20 N south
B. 20 N north
C. 20 N down
D. There is no reaction force in this case.
D
Explanation:
Because between this force the opposite direction will be zero
Answer: The answer is actually A, 20 N south
Explanation:
Because I got it wrong, but then it showed me the answer.
HELP ME PLEASE????????????????????????????????
3. The brakes of a certain car can produce an acceleration of 6 m/s.
a. How long does it take the car to come to a stop from a velocity of 30 m/s?
Answer:
5s
Explanation:
initial distance: 0 m
distance: ? (we don't know)
initial velocity: 0 m/s
velocity: 30 m/s
acceleration: 6 [tex]m/s^{2}[/tex]
time: ? (we are looking for)
v = v0 + at
plug the numbers in:
30 = 0 + 6(t)
= 30 = 6t
= t = 5
5s
how much is the velocity of a body when it travels 600 m in 5 minutes ?
Answer:
The answer is two meter per second square
A toy truck has a mass of 8kg. If it is moving at a velocity of 3m/s, what is it's
momentum?
Answer:
[tex]momentum =mv \\ = 8 \times 3 = 24kg.m. {s}^{ - 1} [/tex]
isaac newton discovered that the color white is created when light passes through a prism. t or f?
Answer:
false
Explanation:
discovered colours of the rainbow
Answer:
False
Explanation:
Have the day you deserve :)
A car begins from rest and accelerates at a rate of +3.0 m/s^2 for 5.0 seconds.
a. Determine the car's final speed.
b. Calculate the car's average speed during its trip
Answer:
a)15m/s
b)7.5m/s
Explanation:
a)use the formula for acceleration
b)calculate distance then calculate speed
03. A rocket and its payload have a total mass of 5.0 × 104 kg. How large is the force produced by the engine (the thrust) when
(a) the rocket is “hovering” over the launch pad just after ignition, and
(b) when the rocket is accelerating upward at 20 ms-2?
Answer:
hddhgdffghuhuuy680ji8fgddff dadeldhura 30x72x19 ra 30x72x19 ra samidhan 6I
How much time does it take the cheetah to travel 500 meters, if its average speed is 70 meters per second?
l=500m
speed=70m/s
t=?
t=500/70=7.14s
A plane mirror moves towards the object with a velocity of 2m/s and the object itself moves towards the mirror with a velocity of 5m/s. What is the velocity of the image approaching towards the object..
Answer:
3.33 m/s
Explanation:
1/2 = 1/5 + 1/x
1/x = 1/2 - 1/5
1/x = 5/10 - 2/10
1/x = 3/10
x = 10/3
x = 3.33 m/s
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A wave has a speed of 150 m/s and a frequency of 60 Hz. What is the wavelength of this wave in metres?
Answer:
wavelength = 2.5 m
Explanation:
λ=. v/f
= [tex]\frac{150m/s}{60Hz} = 2.5m[/tex]
1 Apps OCPS
Tools
Weather
1
Directions: Select each correct answer. More than one answer may be correct.
Computer simulations are used to predict the weather. A computer simulation is a kind of model. Large amounts of data are entered
into the computer. Then the computer performs complicated calculations with the data. The result is a prediction about what the
weather might be like in the coming hours or days.
Why are computers widely used for modeling weather systems?
because weather systems are too complicated to be accurately predicted using small-scale
models
D
because weather systems are too large to study in controlled experiments
because weather systems are too complicated to be studied with instruments and satellites
because weather systems are too large to be observed in nature
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Computers are widely used for modeling weather systems because because weather systems are too complicated to be accurately predicted using small-scale. Hence option A is correct.
What is whether system ?Weather refers to the condition of the atmosphere and includes terms like how hot or cold, wet or dry, quiet or stormy, clear or foggy, etc. The troposphere, which is the lowest part of Earth's atmosphere and lies just below the stratosphere, is where most meteorological events take place. Climate is the phrase for the average of atmospheric conditions over longer periods of time, whereas weather is the term for day-to-day temperature, precipitation, and other atmospheric factors. Without more explanation, "weather" is typically taken to refer to the weather on Earth.
Differences in air pressure, temperature, and moisture from one location to another influence the weather. The Sun's angle at any given location, which changes with latitude, may be the cause of these variations.
Hence option A is correct.
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What happens to the density of a fluid as it temperature increases/decreases?
Graphs show relationships between two or more variables. Which three features describe a line graph?
A.
Shows how a variable changes in relation to another variable
done
B.
Has an x-axis and a y-axis
C.
Shows the dependent variable on the x-axis
D.
Has neither an x-axis nor a y-axis
done
E.
Shows the independent variable on the x-axis
Answer:
A, B, and E
Explanation:
C and D are wrong;
Line graphs do not show the dependent variable on the x-axis.
Line graphs do have both an x-axis and a y-axis.
Differentiate the followingy= 14t^2-t^2/2+5t-3dy/dt=?
I'm going to assume you mean
[tex]y = 14t^2 - \dfrac{t^2}{2+5t} - 3[/tex]
Taking the derivative with respect to t on both sides gives
[tex]\dfrac{\mathrm dy}{\mathrm dt} = 2\cdot14t - \dfrac{(2+5t)(2t)-t^2(5)}{(2+5t)^2} - 0 \\\\ \dfrac{\mathrm dy}{\mathrm dt} = \boxed{28t - \dfrac{4t+5t^2}{(2+5t)^2}}[/tex]
You could go on to expand the rational expression into partial fractions. One way to do this:
[tex]\dfrac{5t^2 + 4t}{(2 + 5t)^2} = \dfrac{t(5t+2) + 2t}{(2+5t)^2} \\\\= \dfrac{t}{2+5t} + \dfrac{2t}{(2+5t)^2} \\\\= \dfrac15 \cdot \dfrac{t}{\frac25+t} + \dfrac{2t}{(2+5t)^2} \\\\ = \dfrac15 \cdot \dfrac{t+\frac25-\frac25}{\frac25+t} + \dfrac{2t}{(2+5t)^2} \\\\ = \dfrac15 \left(1 - \dfrac{2}{2+5t}\right) + \dfrac{2t}{(2+5t)^2} \\\\ = \dfrac15 - \dfrac{2}{10+25t}+ \dfrac{2t}{(2+5t)^2}[/tex]
and this would give
[tex]\dfrac{\mathrm dy}{\mathrm dt} = 28t - \dfrac15 + \dfrac2{10+25t} - \dfrac{2t}{(2+5t)^2}[/tex]
Two people are each
pulling on the opposite
ends of a rope. If they
are pulling on the rope
with equálbut opposite
forces what will happen
to the rope?
Answer:
the rope should break
Explanation:
she with equal amounts of pulling are on each side then the rope should slowly start to tare apart and snap/break.
hope this helps you
What is meant by the phrase "a consistent method of measurement"?
A. All measurements are in SI units.
B. Every measurement is exactly the same numerical value.
C. The same person performs all measurements.
D. Measurements are taken in a way that is the same every time.
Answer:
D. Measurements are taken in a way that is the same every time
Explanation: I took the quiz and got it right.
If it takes 5 seconds for the projectile to reach its highest point, what is the total
hang time?
10 sec
1 sec
2 sec
d
8 sec
Sean, an astronaut stands on the edge of a lunar crater and throws a Frisbee™ horizontally with a velocity of 5.00 m/s. With no atmosphere on the moon the Frisbee ™ will not have any force of lift so it will “fly” like a stone. The floor of the crater is 77.0 m below the astronaut. What horizontal distance will the Frisbee™ travel before hitting the floor of the crater? (The acceleration of gravity on the moon is 1/6th that of the Earth).
Answer:
48.55mm
Explanation:
Which option is a key point of cell theory?
the answers are
1. Cells are the basic structural unit of all living organisms.
2. Some cells can burn food molecules to release energy, but some cannot.
3. Cells can repair neighboring cells, but not themselves.
4. All cells that make up an organism are similar to each other.
helppppppp I am doing a quiz
Answer:
1.Cells are the basic structural unit of all living organisms.
Answer:
It has three main parts:
1. All living things are made up of cells.
2. Cells are the basic building blocks of life.
3. All cells come from preexisting cells created through the process of cell division.
Explanation:
As science evolved, three more components were added to the theory. Some biology classes don’t require you to know these parts of the cell theory because they weren’t part of the original definition, but it’s still useful to be aware of them:
4. Energy flow occurs within cells.
5. Hereditary information is passed from cell to cell.
6. All cells have the same basic chemical composition.
So what does the cell theory actually mean? Let’s break it down. The first part of the cell theory states that all living things are made up of cells. Anything that’s alive, from bacteria to plants to humans, is composed of cells. And what are cells? The literal definition is a cell is a group of organelles surrounded by a thin membrane.
The cell theory definition states that cells are the building blocks of life. Cells both make up all living things and run the processes needed for life. Your hair, skin, organs, etc. are all made up of cells. In fact, each person is estimated to be made up of nearly 40 trillion cells! Each part of a cell has a different function, and your cells are responsible for taking in nutrients, turning nutrients into energy, removing waste, and more. Basically, everything your body does, it does because cells are directing the actionThe third part of the cell theory definition states that all cells come from preexisting cells. This means that cells don’t just appear out of thin air (known as “spontaneous generation”). New cells are always made from current cells. This means that all current life on the planet is descended from the very first cells, which first made an appearance on Earth roughly 3.5 billion years ago. Cells have been replicating themselves continuously ever since.
And what does the newer part of the cell theory state? Part four refers to the fact that, in all living cells, energy is continuously transformed from one type to another. Examples of these processes include photosynthesis (where plant cells convert light energy into chemical energy) and cellular respiration (where both plant and animal cells convert glucose into energy). Part five refers to DNA and the fact it is passed from parent cell to child cell. Finally, part six of the cell theory tells us that all cells are made up of the same chemicals: water, inorganic ions, and organic molecules.!
A meter stick of uniform material has some dough stuck on one end. The stick has a mass of 0.1 kg. It will balance when supported at a point 0.33m from the dough. How much mass does the dough have?
At the equilibrium or balance point the meter stick stationary and the sum of the moments and forces acting on it is zero
The mass of the dough is .[tex]\underline {51.\overline{51}}[/tex] gramsReason:
Known;
Length of the stick = 1 meter
Mass of the stick, m = 0.1 kg
Point the stick will balance when the dough is at one end = 0.33 m
Required:
How much mass does the dough have
Solution:
The meter stick is balanced when the clockwise moment and the anticlockwise moment about the balance point are equal
Let M, represent the mass of the dough, we have;
The center of mass of the meter stick = The 0.5 m point
Taking moment, we have;
[tex]\mathbf{\sum M_{clockwise} = \sum M_{anticlockwise}}[/tex]Distance from the center of mas of the ruler to the fulcrum, d₁ = (0.5 - 0.33) m
Distance from the dough to the fulcrum, d₂ = 0.33 m
Clockwise moment, [tex]\mathbf{\sum M_{clockwise} }[/tex] = m × d₁
Anticlockwise moment, [tex]\mathbf{\sum M_{anticlockwise} }[/tex] = M × d₂
Therefore;
(0.5 - 0.33) × 0.1 = M × 0.33
Therefore, we get;
[tex]M = \dfrac{(0.5 - 0.33) \times 0.1}{0.33} =\dfrac{17}{330} =0. 0\overline{51}[/tex]The mass the dough has, M = 0.0[tex]\overline{51}[/tex] kg = 51.[tex]\underline{\overline{51}}[/tex] grams
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