Answer:
22
Explanation:
give two examples of vernier calliper
Answer:
Example 1, if a vernier caliper output a measurement reading of 2.13 cm, this means that: The main scale contributes the main number(s) and one decimal place to the reading
E.g. 2. 1 cm, whereby 2 is the main number and 0.1 is the one decimal place number
Explanation:
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When a substance experiences a phase change (state of matter change) is this a chemical or physical change? How do you know?
Answer:its a physical change as state of matter changes without any reactions
Explanation:when a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition. Although we call them physical "reactions," no reaction is actually occurring
Can somone help me with this problem I have been stuck on it for a while. The answer is 17.1m but I dont understand how to get it. If you dont know dont answer or I will report you.
Hi There, Buddy!
To solve this problem, let us divide the entire motion into 2 phases
1.) When the elevator is moving with an acceleration
2.) When the elevator has a deceleration
For the first half -
u = 0 , a = 0.6 , t = t1
v = 0.6(t1) ---------- ( 1 )
s = 1/2 x 0.6 x (t1)^2 = 0.3(t1^2) -------- ( 2 )
For the second half -
u = 0.6(t1) , a = -0.8 , v = 0
0.6 x (t1) = 0.8 (t2) ----> 3(t1) = 4(t2) ---------- ( 3 )
0.36(t1)^2 = 1.6 s2 ---------- ( 4 )
Now, we know that the total time taken is 10 seconds
------- t1 + t2 =10 , 3t1 = 4t2 ---- t1 = 40/7 , t2 = 30/7
Now, substitute values of t1 and t2 in s1 and s2 and add both s1 and s2 to get total distance travelled.
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What is the main unit of measurement used in football?
Answer: It would be yards
Explanation:
Answer:
I suppose you are talking about American football, so the answer would be yards.
Explanation:
The field is measured using yards.
What does Magnitude means?
Speed
Speed
Amount
Amount
Distance
Distance
Interval
Answer:
Speed
Explanation:
Hope this helps!
Something that bases conclusions on established authority is Question 1 options: A.pseudoscience B. non-science C.science
Answer:
is the first one right
Explanation:
Answer:
yes
Explanation:
when the wind blows it creates a pressure on any force it blows against. A large pressure window has an area of 3.5m2. If the wind causes a pressure of 2000Pa on the window what force acts on it?
Answer:
The force acting on the window is 7000N.
Explanation:
Given that the formula for pressure of solid is P = Force/Area. Then, you have to substitute the values into the formula :
[tex]pressure = \frac{force}{area} [/tex]
[tex]let \: pressure = 2000,area = 3.5[/tex]
[tex]2000 = \frac{force}{3.5} [/tex]
[tex]2000 \times 3.5 = force[/tex]
[tex]force = 7000N[/tex]
Given:-
Area of the window = 3.5 m²Pressure generated = 2000 PaTo Find: Force exerted by the air to the window.
We know,
P = F/A
where,
P = Pressure,F = Force &A = Area.Similarly,
F = PA
→ F = (2000 Pa)(3.5 m²)
→ F = (2000 N/m²)(3.5 m²)
→ F = (200 N)(35)
→ F = 7000 N (Ans.)
The largest formal unit of geologic time is ______.
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{eon}}}}}[/tex]
Explanation:
The largest formal unit of geologic time is eon .
Hope I helped!
Need help with number 1
An _____ has a different number of electrons than normal.
A. isotopes
B. elements
C. ions
Answer:
isotopes
Explanation:
How many vector quantities are given in this paragraph? Two hikers, on the Appalachian Trail, travel northeast along the trail for 2.5 miles. They average a
2.3 mile/hour pace in that direction. The temperature increases to 88°F as the sun
rises. They stop for a moment to drink 600 mL of water from their water bottles. The
trail shifts slightly to a due north direction as they walk for 5.0 more miles. By this
time the hikers are ready to eat lunch. The hikers remove their 25.0 kg backpacks
and sit on a log that is off the trail. They eat and rest for 45 minutes, and resume
their walk due north for 2 more miles.
5 vector quantities
9 vector quantities
4 vector quantities
2 vector quantities
Answer:
4 vector quantities
Explanation:
There are 4 vector quantities given in the paragraph, therefore the correct answer for the given problem statement is option C
What is a vector quantity?The quantities that contain the magnitude of the quantities along with the direction are known as the vector quantities.
While the scalar quantities do not contain the information of the direction they only have a magnitude of the quantity measured.
As stated in the issue On the Appalachian Path, two hikers cover 2.5 miles to the northeast of the trail. They move along there at a mean speed of 2.3 miles per hour.
They continue walking for another 5.0 miles till the trail gently changes to a straight north direction. The trekkers are now eager to have their lunch.
The hikers take off their 25.0-kilogram backpacks and sit on an unmarked log.
They take 45 minutes to eat, relax, and then continue walking 2 more miles due north.
In the given paragraph there are 3 displacement vectors along with one velocity vector therefore there are 4 vector quantities.\
Thus, there are 4 vector quantities and the correct answer is option C
Learn more about the vector quantity here,
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What makes up all type of matter in living and nonliving things in an ecosystem?
Producers are responsible for making all types of matter in living and non-living things in an ecosystem.
What do you mean by Ecosystem?An ecosystem may be defined as a place or area where members of different species live together and interact with one another for the purpose of food, shelter, and space.
Producers are organisms which always found at the bottom of each trophic level of an ecosystem. These organisms synthesize their own food and energy from carbon dioxide in presence of sunlight.
After synthesizing energy, they transform their energy to higher trophic levels. Apart from this, several biotic and abiotic factors are also responsible for making up the type of matter in living and nonliving things in an ecosystem.
Therefore, producers are responsible for making all types of matter in living and non-living things in an ecosystem.
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According to Newton's first law of motion, which force is expected to cause a body to accelerate?
•unbalanced force
•Balanced force
•Weak force
•Strong force
Answer:
Unbalanced force -
Explanation:
Unbalanced force is expected to cause a body to accelerate.
Answer:
Unbalanced force
Explanation:
Unbalanced force is expected to cause acceleration in any body as it's net value is not zero in every direction .
I hope it's helpful
light travels 3,00,000km/s. ls it right velocity or speed?
Answer:
speed
Explanation:
because speed is fast
Answer: Speed
Explanation:
The baseball weighs 1 kg. The pitcher throws the ball at a velocity of 10 m/s straight up. Neglecting air resistance, what is the net force that acts on the baseball when it is HALF WAY to the top of the path
Answer:
9.81 N
Explanation:
Given that a baseball weighs 1 kg. The pitcher throws the ball at a velocity of 10 m/s straight up. Neglecting air resistance. The maximum height reached will be calculated by using the formula
V^2 = U^2 - 2gH
U = 10 m/s
g = 9.8m/s^2
At maximum height, V = 0
Substitute u and g into the formula
0 = 10^2 - 2 × 9.8 × H
19.6H = 100
H = 100/19.6
H = 5.1 m
The Kinetic energy on the ball will be
K.E = 1/2mv^2
K.E = 1/2 × 1 × 10^2
K.E = 1/2 × 100
K.E = 50 J
But energy = work done
WD = Force × distance (height)
The force that acts on the baseball when it is HALF WAY to the top of the path will be
F × 5.1/2 = 50
F = 100/5.1
F = 19.61 N
The weight acting downward will be
W = mg
W = 1 × 9.8
W = 9.8 N
The net force acting on the ball will be
Net force = F - W
Net force = 19.61 - 9.8
Net force = 9.81 N
Therefore, the net force that acts on the baseball when it is HALF WAY to the top of the path is 9.81 N
Given no air resistance, all objects near the Earth's surface – regardless of
size and weight – fall with the same acceleration because of gravity.
True or False ?
Answer:
True
Explanation:
what is the center of gravity
Answer:
The center of gravity is the average location of the weight of an object
Explanation:
Question 11
1 pts
What is the acceleration of a 24kg mass pushed by a 6N force?
Answer:
4?
Explanation:
What is 645 g to kg?
Answer:
0.645 kg
Explanation:
because 1 kg = 1000 g
so 1 g = 1/1000 kg = 0.001 kg
645 g = (645 x 0.001) kg = 0.645 kg
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In addition to how much force Earth exerts on the object, which features of an object affect its weight?
mass and location of the object shape and location of the object location of the object and how much energy the object has mass of the object and how much energy the object has
Answer:
I am pretty sure the answer is A
Explanation:
I know its not C
I hope this helps and I'm sorry if it does not.
The features of an object which affect its weight are the mass and location which is denoted as option A.
What is Weight?This is defined as the force acting on the object due to gravity and the formula is W = mg where m is mass and g is acceleration due to gravity.
This is why the weight features of an object is affected by its mass and then location.
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why VR is not affected by friction?
Answer:
Explanation:
VR ( Velocity ratio ) is the ratio of displacement to effort of load. So it is obvious that displacement takes place. Frictional force cannot change the displacement as it only an opposing force. So VR is not affected by friction.
Hope this helps
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Answer:
because VR is velocity ratio
h e l p a h o m i e o u t t h a n k s
The US Environmental Protection Agency issues a daily report for pollution levels called the __________.
A.
Pollution Advisory Warning
B.
Air Rating Level
C.
Particulates and Pollution Index
D.
Air Quality Index
Please select the best answer from the choices provided.
A
B
C
D
Answer:
D, Air Quality Index :)
Hope this helped!
P.S. : Can I get brainliest please?
Write 3,800 seconds in hours, minutes, and seconds
Explanation:
3,800 seconds in hours is 1.055556
3,800 seconds in minutes is 63.33333
3,000 seconds in seconds is the same.
a penguin swimming underwater goes 20 meters in 8 seconds. what is its average speed?
Answer:
The Average Speed Is 2.5 m/s
Explanation:
Why echo sound cannot be heard in small room
QUICKLY PLS
What is the period of a pendulum that takes
one second to make a complete back-and-
forth vibration?
Answer:
what is the period of a pendulum that takes one second to make a complete back-and-forth vibration? Suppose that a pendulum has a period of 1.5 seconds. How long does it take to make a complete back-and-forth vibration? The period of the pendulum would be 1.5 seconds divided by 1 cycle = 1.5 seconds.
Explanation:
because it is
synonym of an applied force
Answer:
Coerce, compel, constrain
Explanation:
The Moon is 4,530,000,000 years old. Convert the Moon's age to scientific notation.
Answer:
4.53×10^9 years old.
Explanation:
Scientific notation is a mathematical term or expression that illustrates a method of representing actual numbers or figures that are often considered too substantial or too insignificant to be written appropriately using normal decimal representation. It can be depicted as "a x 10^n"
Hence, in this case, converting the age of the moon which is 4,530,000,000 years old to scientific notation is equal to 4.53×10^9 years old.
Answer:
4.53×10^9 years old.
Two students make a model of a tree House they want to build. the scale 1:42 in the scale model the treehouse door is 3 cm tall how tall should the real treehouse store be
A 36cm
B 126cm
C 14cm
D 45cm
Answer:
Option B. 126 cm.
Explanation:
From the question given above,
The scale = 1 : 42.
Height of the real door =...?
The scale for the tree house project is
1 : 42. This implies that for every 1 cm on paper, it represents 42 cm on land.
Now, if the height of the door on paper is 3 cm, then the height of the door on land = 3 × 42 = 126 cm on land.
Therefore, the real tree house door is 126 cm tall.
