Answers
As the altitude decreases,air pressure increases. The statement is true. Option A is correct.
What is pressure?The force applied perpendicular to the surface of an item per unit area across which that force is spread is known as pressure.
It is denoted by P. The pressure relative to the ambient pressure is known as gauge pressure.
As the altitude decreases,air pressure increases. The statement is true.
Hence, option A is correct, and the given statement is true.
To learn more about the pressure, refer to the link;
https://brainly.com/question/356585
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Related Questions
After a rocket falling through the air explodes, the net momentum of its
fragments...
A. increase
B. Decrease
C. stays the same
D. Is zero
Answers
it increase it momentum
A paratrooper jumping from the plane lands safely ,why?
Answers
1. Two vectors have magnitudes 6 & 8 units, respectively. Find the maximum &
minimum resultant vectors.
nitsdoftboltant fuo vectors acting in the same direction is 20
Answers
Answer:
The maximum magnitude of their resultant is 14 units, and the minimum is 2 units
Explanation:
Resultant Vectors
When two or more vectors are added or subtracted, the resultant vector can be found by considering their magnitudes and directions.
Two vectors applied to the same point can produce a result that can vary from being completely collaborative or completely opposite.
If two vectors act in a collaborative form, their magnitudes are added and the result has the maximum possible magnitude. If they act in opposite directions, the result has the minimum possible magnitude.
Thus, being 6 and 8 units the magnitudes of the vectors, the maximum magnitude of their resultant is 14 units, and the minimum is 2 units.
the height has a distance of 2.5 seconds to hit the ground what is gravity?
Answers
Answer:
11 times
Explanatiom:
756 fourty
What is the relationship between the force of gravity and the distance between the two objects involved?
Answers
Answer:
They are inversely proportional
Explanation:
The force of gravity and the distance between two objects involved are inversely proportional to one another.
According to newton's law of universal gravitation "the force of gravity between two bodies is a product of their masses and inversely proportional to the distances between them".
The force of gravity and distance between two bodies are inversely related. The larger the distance between two bodies the lesser the force of gravity between them.Calculate Density:
Volume=43cm3, Mass=45g
Answers
Answer:
P= 1.04651 g/cm3
Explanation:
Twins Jody and Taylor are rearranging the furniture in their bedroom and want to move a dresser across the room. The dresser has a sliding force of 90N. Jody can push with a force of 55N and Taylor can push with a force of 38N. What is the Net Force? Can the twins move the dresser across the room? Explain why in complete sentences and show all math work to support your answer.
Plz help this is due in 5 days ;-;
Answers
Answer:
yes, They will be able to move the dresser.
Explanation:
sliding force 90N
55N + 38N = 93N
therefore, yes the twins can move the dresser
In what direction do the velocity vectors point in circular motion?
Answers
The velocity vector is always perpendicular to the radius. By radius, I mean the inward centripetal force that pulls the object to continue on its curved path. Without this inward force, the object would continue on a straight path tangential to the curve it was previously on.
Which of the following is a force?
Momentum
Friction
Acceleration
Velocity
Answers
Answer:
friction
Explanation:
have you not heard frictional force?
have you ever heard momentum force or acceleration force
hope this helps. if not. please report it and let someone else try it
Zach drives his car around a circular section of a road having a radius of 50 meters at a constant speed of 20 m/s. What is the centripetal acceleration of Zach's car?
Answers
Answer:
Centripetal acceleration = 8m/s²
Explanation:
Given the following data;
Radius, r = 50m
Velocity, v = 20m/s
To find centripetal acceleration;
Centripetal acceleration = v²/r
Centripetal acceleration = 20²/50
Centripetal acceleration = 400/50
Centripetal acceleration = 8m/s²
Therefore, the centripetal acceleration of Zach's car is 8 meters per seconds square.
For this graph to the right, what is the
velocity of the object? Show your work.
Answers
I dont see a mark where it is, if there was a line it would be marking the constant speed of it. There is just time(s) which probably stands for speed, and position(m) which probably stands for miles. There is a measurement of 50, down to 10. Please give me more explanation to this question and I may be able to help!
When the velocity of an object is quadrupled , by what factor is its kinetic energy changed ?
Answers
Answer:
I believe it is 16
Explanation:
Answer:so add the momentum twice and then the kinetic energy becomes four times
Explanation:This includes to me not the factor but by what factor it’s kenetic energy changes Momentum becomes twice and kinetic energy becomes four times its original value
force of 4 Newtons in 20 power output? 40 Nm/sec 2 Nm 2 Nm/sec 1
Answers
Answer:
P = 0.2 W
Explanation:
Given that,
Force, F = 4 N
Displacement, d = 1 m (say)
Time, t = 20 s
We need to find the power output. Power is the rate of doing work. So,
P = W/t
[tex]P=\dfrac{Fd}{t}\\\\P=\dfrac{4\times 1}{20}\\\\P=0.2\ W[/tex]
So, the required power is 0.2 W.
What does the universe contain?
A. Only stars and planets
B. Everything
Answers
Answer:
B
In my opinion. :)
Explanation:
How are electromagnetic waves different from sound or water waves?
Answers
Explanation:
Electromagnetic waves are different from sound or water waves in such a way that water and sound waves are called mechanical waves that requires a material medium for their propagation.
Electromagnetic waves do no require a material medium for propagation.
Electromagnetic waves are carried or transported by radiation and this can be passed through vacuums and different other materials. But mechanical waves such as water and sound waves requires a material medium for their propagation. They cannot pass through a vacuum.Does static electricity attract dead skin cells
Answers
Answer:
no i dont think so
Explanation:
How high will the ball go? I would really appreciate a step by step answer!
Answers
Answer:
y = 3.26 [m]
Explanation:
In order to solve this problem, we must use the following equation of kinematics.
[tex]v_{f}^{2}= v_{o}^{2}-2*g*y[/tex]
where:
Vf = final velocity = 0
Vo = initial velocity = 8 [m/s]
g = gravity acceleration = 9.81 [m/s²]
y = elevation [m]
Note: The negative sign in the equation above represents that the movement is againts the direction of the gravity acceleration.
Now replacing:
[tex]0=8^{2} -2*9.81*y\\19.62*y=64\\y=3.26 [m][/tex]
An incandescent bulb is supplied with
100 J of energy every second and
transfers 5 J of energy by light
Calculate the efficiency of the bulb.
I need some help can you explain this to me please and thank you
Answers
Answer:
Efficiency = 5%
Explanation:
Given that,
Supplies energy to the bulb = 100 J
Transferred energy by the bulb = 5 J
We need to find the efficiency of the bulb. It can be given by "
[tex]\eta=\dfrac{\text{useful energy out}}{\text{useful energy in}}\times 100\\\\=\dfrac{5}{100}\times 100\\\\=5\%[/tex]
So, the efficiency of the bulb is 5%.
PLEASEEEE HELP MEEEEE!!!! WILL GIVE BRAINLIST!
Which point is located at (4, –2)?
On a coordinate plane, point A is 2 units to the left and 4 units up. Point B is 4 units to the right and 2 units down. Point C is 4 units to the left and 2 units up. Point D is 2 units to the right and 4 units down.
A
B
C
D
Answers
Answer:
It is B
Explanation:
Answer:
the other guy is right im answering so you can give him brainliest have a nice day :)
Explanation:
2. What is the smallest particle into which an
element can be divided?
O proton
particle
O atom
O nucleus
Answers
Explanation:
atommmmmmmmmmmmmmmmmmmmm
an object is moving along a straight road at the speed of 6 km per hour
a,how future away is the object every one hour
Answers
Answer:
6km
Explanation:
A constant force of 4.5N acts on a 7.2 kg object for 10 s what is the change in the object velocity
Answers
Answer:
The change in the object's velocity is 6.25 m/s
Explanation:
Force
According to the second Newton's law, the net force exerted by an external agent on an object of mass m is:
F = ma [1]
Where a is the acceleration of the object.
On the other hand, the equations of the Kinematics describe the motion of the object by the equation:
[tex]v_f=v_o+at\qquad\qquad[2][/tex]
Where:
vf is the final speed
vo is the initial speed
a is the acceleration
t is the time
It's given a constant force of F=4.5 N acts on an object of mass m=7.2 kg. The object has an acceleration we can calculate solving [1] for a:
[tex]a=\frac{F}{m}[/tex]
[tex]a=\frac{4.5}{7.2}=0.625[/tex]
[tex]a=0.625\ m/s^2[/tex]
It's required con compute the change of velocity (or its magnitude, the speed). From [2]:
[tex]v_f-v_o=at[/tex]
The expression at the left side is the change of speed Δv:
[tex]\Delta v=at[/tex]
Knowing the time is t=10 s:
[tex]\Delta v=0.625*10[/tex]
[tex]\Delta v=6.25\ m/s[/tex]
The change in the object's velocity is 6.25 m/s
Someone pleaseeeee helppp
Answers
Explanation:
it's lead because see it's density if u have more density the voice will be slowest
The intensity of a sound is another way to say the _________ of a sound.
frequency
amplitude
wavelength
loudness
Answers
Answer:
Frequency and tfcvvbyfgffhhi
Answer:
I think frequency
Explanation:
What two things determine whether a molecule is polar?
Check all that apply.
A. If there is an anion and a cation
B. If the molecule is easily ionized
C. If the bonds are polar
D. The molecular shape
Answers
Answer:
c
Explanation:
Answer:C&D
Explanation:
I just did it
the distance between pole and position of image can denoted by___
a)u. b)v. c)R. d)C
Answers
Answer:
b) v
Explanation:
the distance between pole and position of image can denoted by v
A student wants to use all of the appliances at the same time so plugs them in to a multiway socket.
The socket has a maximum safe current of 30A and the mains electricity is 230V.
a. Is it safe to use all five appliances at once?
Explain your answer showing your use of the equation
Answers
Answer:
The answer would be no
Explanation:
because the voltages are so high, we can assume that 5 appliances divided up between the voltages would not be safe to use together and would ultimately cause the circuits to overload
You are driving at 30.0 m/s on a freeway curve of radius 25.0 m. What is the magnitude of your acceleration?
Answers
Answer:
36.0 m/s^2
Explanation:
The magnitude of your acceleration is equal to 36.0 [tex]m/s^2[/tex].
Given the following data:
Radius, r = 25.0 meters. Speed, V = 30.0 m/s.To calculate the magnitude of your acceleration:
Mathematically, the centripetal acceleration of an object is given by this formula:
[tex]A_c = \frac{V^2}{r}[/tex]
Where:
[tex]A_c[/tex] is the centripetal acceleration.r is the radius of the circular track.V is the velocity of an object.Substituting the given parameters into the formula, we have;
[tex]A_c = \frac{30.0^2}{25.0}\\\\A_c = \frac{900}{25.0}[/tex]
Centripetal acceleration = 36.0 [tex]m/s^2[/tex]
Read more on centripetal acceleration here: https://brainly.com/question/2788500
The density of solid copper is 8960 kg/m3.
The density of molten copper is 7900 kg/m3.
Explain this difference in density by referring to the particle model and the arrangement of
atoms in the two states. (2)
Answers
Explanation:
The density of a solid copper is 8960kg/m^3 while the density of a molten copper is 7900kg/m^3 this is due to the difference in the state of matter, the solid copper is in solid state while the molten copper is in form of a liquid. In the solid copper atoms are tightly pack while they atom are not tightly packed.
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match the reactants with the products.
Answers
This is an incomplete question, the complete question is given below.
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match the reactants with the products.
copper sulfate + oxygen
copper oxide
zinc sulfate + copper
aluminum chloride + copper
copper + water
copper sulfate + zinc →
aluminum + copper chloride →
copper oxide + hydrogen →
copper + oxygen →
Answer :
Copper sulfate + Zinc → Zinc sulfate + copper
Aluminium + Copper chloride → Aluminium chloride + copper
Copper oxide + Hydrogen → Copper + Water
Copper + Oxygen → Copper oxide
Explanation :
As we know that chemical reaction is a reaction in which two or more than two substances or reactants are reacted to give two or more than two different products.
According to the question:
Copper sulfate + Zinc → Zinc sulfate + copperThis reaction is a single replacement reaction in which zinc is more reactive than copper and zinc displaces copper from its salt to give products.
Aluminium + Copper chloride → Aluminium chloride + CopperThis reaction is a single replacement reaction in which aluminium is a more reactive element than copper and aluminium displaces copper from its salt to give products.
Copper oxide + Hydrogen → Copper + waterThis reaction is a single replacement reaction in which hydrogen displaces less reactive metals from their oxide to form water and the metal.
Copper + Oxygen → Copper oxideThis reaction is a synthesis reaction in which two different atoms or molecules combine to form single compound.
Answer:
Copper sulfate + Zinc → Zinc sulfate + copper
Aluminium + Copper chloride → Aluminium chloride + copper
Copper oxide + Hydrogen → Copper + Water
Copper + Oxygen → Copper oxide
Explanation:
guy above me