15 POINTS! ANSWER CORRECTLY FOR BRAINLIEST!
Which factor makes the mesosphere difficult to study?
A. It is too high for weather balloons
B. It is too high for satellites to observe
C. Cloud cover makes it too hard to see
D. The ozone layer blocks our view
(I honestly think it's A but I just want other peoples opinions)
Credit: Larus (Full Credits to Larus I didn't make this answer)
The correct answer is that it is too high for the weather balloons.
The mesosphere refers to the layer of the atmosphere of the Earth. It is present directly above the stratosphere and below the thermosphere. It elongates from about 50 to 85 kilometers above the Earth. The coldest temperatures in the atmosphere of the Earth, that is, around -90 degree C, is found close to the top of the layer.
It is tough to study mesosphere, therefore, less is known about the layer of the atmosphere in comparison to the other layers. It is tough as weather balloons cannot fly high enough to reach the mesosphere. The satellites orbit above the mesosphere, and cannot directly determine the traits of the layer.
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
Question 11
1 pts
What is the acceleration of a 24kg mass pushed by a 6N force?
Answer:
4?
Explanation:
How long is a football field?
Answer:
91.44 meters or 300 feet
Answer:
100 yards
Explanation:
If comparing from actual playing field between the goal posts. Add another 10 yards for end lines. Making it 120 yards in length.
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.)
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
A projectile is launched at a 30° angle relative to the
ground. The projectile has an initial velocity of 15 m/s
and travels through the air for 2 seconds.
The horizontal displacement of the projectile, rounded to
the nearest hundredth, is
m.
Answer:
25.98
Explanation:
right answer
The horizontal displacement of the projectile is 25.98 m.
The given parameters;
angle of projection Ф = 30°
initial velocity of the projectile, u = 15 m/s
time of motion, t = 2 seconds
The horizontal displacement of the projectile is calculated as follows;
[tex]X = v_0_x \times t\\\\X = v_0 cos (\theta) \times t\\\\X = 15\times cos (30) \times 2\\\\X = 25.98 \ m[/tex]
Thus, the horizontal displacement of the projectile is 25.98 m.
Learn more here:https://brainly.com/question/15502195
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 type of resource is water
Answer: Renewable Resource
Explanation: There isn't a limited supply of water, which makes it a renewable resource.
Answer:
in my view water is the combination of oxygen (1) part and hydrogen (2) part
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
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:
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.
To learn more about the Ecosystem, refer to the link:
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A cross country skier moves from location A to location B to location C to location D. Each leg of the back and forth motion takes 1 minute to complete; the total time is 3 minutes.
What is the distance travelled by the skier in the first minute?
What is the displacement of the skier in the first minute?
What is the distance travelled by the skier in the first two minutes?
Please help it’ll be greatly appreciated!!
Answer:
1. 160
2. 0
3. 120
Explanation:
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?
Which of the following elements would be predicted to be the best conductor of electricity? - sodium (Na) - germanium (Ge) - sulfur (S) - neon (Ne)
Answer:
sodium
Explanation:
Answer:
sodium
Explanation:
What does Magnitude means?
Speed
Speed
Amount
Amount
Distance
Distance
Interval
Answer:
Speed
Explanation:
Hope this helps!
synonym of an applied force
Answer:
Coerce, compel, constrain
Explanation:
Bailey was driving down the street on her motorcycle and reduced her velocity from 25
m/s to 15 m/s over a distance of 8 meters. What is the magnitude of the motorcycle's
acceleration during this time!
Answer:
a = - 25 m/s²
Explanation:
The magnitude of acceleration or deceleration of an object can be found by using the third equation of motion as follows:
2as = Vf² - Vi²
where,
a = magnitude of acceleration = ?
Vf = Final Velocity = 15 m/s
Vi = Initial Velocity = 25 m/s
s = distance traveled = 8 m
Therefore,
2a(8 m) = (15 m/s)² - (25 m/s)²
a = (- 400 m²/s²)/(16 m)
a = - 25 m/s²
Here negative sign indicates deceleration
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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light travels 3,00,000km/s. ls it right velocity or speed?
Answer:
speed
Explanation:
because speed is fast
Answer: Speed
Explanation:
An _____ has a different number of electrons than normal.
A. isotopes
B. elements
C. ions
Answer:
isotopes
Explanation:
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!
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.
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.
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:
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
plz mark as brainliest!!!!!!!!
Answer:
because VR is velocity ratio
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
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.
Why echo sound cannot be heard in small room
what is the center of gravity
Answer:
The center of gravity is the average location of the weight of an object
Explanation:
