Answer:
All the spheres interact with other spheres.
Explanation:
Rain (hydrosphere) falls from the clouds in the atmosphere to the lithosphere and then forms streams and and rivers that provide drinking water for wildlife and humans and water for plants and crops to grow.
List three ways we use pressure in our everyday lives.
(Will mark brainliest)
Answer:
The area of the edge of a knife's blade is extremely small.
Syringes are used to take blood for blood tests.
When air is sucked out of a drinking straw, the air pressure inside if decreases and the atmospheric pressure outside forces the liquid to go inside the straw.
Explanation:
Hope this helped, Have a Great Day/Night!!
Passengers on a carnival ride move at constant speed in a horizontal circle of radius 5.0 m, making a complete circle in 4.0 s. What is the acceleration?
Answer:
bonita sisisisiisisisisiisissiissiisiiss
You are taking an image of a patient who is in extreme discomfort while participating in the CT scanning process. Which of the following qualities must you exhibit to obtain a clear and accurate image? O communication skills O interpersonal skills o detail oriented physical endurance
Answer:
Interpersonal skills
Explanation:
Answer:
The right answer is interpersonal skills
Explanation:
give the other person brainliest they deserve it
Write an equation of the line in slope-intercept form.
What question does physics have today
400 N of load can be overcome by an effort of 50 N by using a lever. Calculate the mechanical advantage of the lever.
Answer:
load (l)=400N
Effort(E)=50N
mechanical advantage (MA)= load ÷Effort
(ma)=400÷50
(ma)=8
Explanation:
I copy pasted from the answer from the same question. Remember to first check if ur question is there
A net force of 20 N is applied to a 5 kg object. What is the acceleration of the object?
Answer:
[tex]4ms^{-2}[/tex]
Explanation:
F = ma
Rearrange to get acceleration on its own:
a = [tex]\frac{F}{m}[/tex]
Substitute 20 for F and 5 for m:
a = [tex]\frac{20}{5}[/tex] = 4 meters/second/second
Two balls have the same mass. One ball moving along the positive x–axis and the other ball moving along the positive y–axis undergo perfectly inelastic collision. What can you say about the motion of the balls after the collision?
A.
The balls stick and move together.
B.
The balls separate immediately.
C.
The first ball stops while the other ball starts moving.
D.
The two balls travel off in opposite directions, 180° apart.
Answer:
A. The balls stick and move together.
Explanation:
When a bodies undergo perfectly inelastic collision, the two bodies stick together after the collision and begins to move.
In this collision, kinetic energy is not conserved. For perfectly elastic collision, the two bodies conserve kinetic energy and begin to move apart.
Kinetic energy is not conserved because some of the energy gets converted into other forms of energy.
A student lists a set of materials
1. Wood
2.hydrogen gas
3. Milk
4. Water
Which materials can be medium through which a wave can travel
A. hydrogen gas
B.wood
C. Milk and water
D. wood, hydrogen gas, milk, and water
Answer:
D. wood, hydrogen gas, milk, and water
Explanation:
Waves will transmit through wood, hydrogen gas, milk and water.
Waves are disturbances that propagates energy usually through a material medium.
Most mechanical waves pass through the given medium. Only electromagnetic waves do not really require a material medium for their propagation. They can be propagated through a vacuum.
Rate at which wave travels or propagates
Answer:
v =fλ v = f λ where v
Explanation:
how is force spread over long and short durations of time?
I think you're having trouble with it only because of how you're trying to look at it.
Don't try to imagine "spreading force" over time. Just think about how long the force lasts !
Like . . .
If you push your doll stroller for 5 seconds, you'll get it up to a certain speed.
Next time, if you push it again with the same force, but you keep pushing for TEN seconds, you'll get it up to a faster speed.
Technically:
(force • time) = impulse.
You gave it more impulse the second time, so it got more momentum from you.
If the Sun has 28 times more gravity than Earth,
what is your weight on the Sun?
If someone have weight that is force due to gravity is X than on the sun it will become 28 X.
What is force?A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Mass of body is constant on any place in the universe and weight changes with acceleration due to gravity so, at sun weight will be 28 X.
If someone have weight that is force due to gravity is X than on the sun it will become 28 X.
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Which change will always result in an increase in the gravitational force between two objects?
OO
increasing the masses of the objects and increasing the distance between the objects
decreasing the masses of the objects and decreasing the distance between the objects
increasing the masses of the objects and decreasing the distance between the objects
decreasing the masses of the objects and increasing the distance between the objects
Answer:
increasing the masses of the objects and increasing the distance between the objects
A student is given an investigation of the human body. The student is to predict how new cells are created. According to cell theory, which prediction is correct?
A.Cells grow and develop, but are never replaced.
B. New cells are created from pre-existing cells in the human body.
C. New cells are created but quickly die during cell growth.
D. Humans are born with all the cells they will ever need.
Answer:
B. New cells are created from pre-existing cells in the human body.
Explanation:
According to the cell theory, the correct assumption from the student's investigation is that "new cells are created from pre-existing cells in the human body".
One of the postulates of the cell theory is that all cells originated from pre-existing cells. Also, a cell is the fundamental unit of life.So, the student is correct to say that new cells are created from pre-existing cells in the human body.
Two identical cars are driving along the motorway. Car A is travelling at 50 km/h and Car B is travelling at 80km/h. Which car has the most drag acting on it?
Answer:
i think it is car B because the greater the speed, the greater the drag force acting on the vehicle
Explanation:
What is the gravitational acceleration on which a 2-kilogram mass has a weight of 16 Newton's?
Answer:8 m/s ^2
Explanation:
in the movie "gravity" - Why did the escape pod get stuck and pulled back?
Answer:
because nono gravity
Explanation:
no gravity
Question 2 (2 points)
If an atom was the size of a sprinkle, about how thick would a strand of hair be?
Answer:
like a stran of yarn
Explanation:
because if shhsjsjsjwjwjwkqkq
Choose all the answers that apply.
Check all the statements that are correct.
An independent variable is the variable which is changed.
The dependent variable is the variable which is observed as a result of the change.
If data can be repeated, it cannot be trusted.
Experiments are usually published to communicate findings to the scientific community.
Disproving a hypothesis means it cannot be tested again.
Answer: An independent variable is the variable which is changed. Experiments are usually published to communicate findings to the scientific community.
Disproving a hypothesis means it cannot be tested again.
Explanation: i hoped that helped.
Which temperature is the hottest? 98 F or 39 C or 303K?
F= 1.8C + 32
C= (F-32)/1.8
Answer:
The hottest temperature is [tex]T_2 = 39^o C[/tex]
Explanation:
From the question we are given
[tex]T_1 = 98 F[/tex]
[tex]T_2 = 39^oC[/tex]
[tex]T_3 = 303 \ K[/tex]
Generally converting [tex]T_3[/tex] to Fahrenheit
[tex]T_3' = (T_3 -273 ) * \frac{9}{5} + 32[/tex]
=> [tex]T_3' = (303 -273 ) * \frac{9}{5} + 32[/tex]
=> [tex]T_3' = 86 F[/tex]
Converting [tex]T_2[/tex] to Fahrenheit
[tex]T_2' = T_2 * \frac{9}{5} + 32[/tex]
=> [tex]T_2' = 39 * \frac{9}{5} + 32[/tex]
=> [tex]T_2' =102.2 F[/tex]
Now comparing the temperature in Fahrenheit we see that [tex]T_2[/tex] is the hottest
A truck weighing 3.0 × 104
newtons was driven up a
hill that is 1.6 × 103
meters long to a level area that
is 8.0 × 102
meters above the starting point. If the
trip took 480 seconds, what was the minimum power
required?
Answer:
5.0x10^4
Explanation:
Im gunna geuss that you didn't add the exponents so...
P=power
F=force
d=displacment
P=Fd
equation:
3.0x10^4(1.6x10^3 - 8.0x10^2)/480
=30000(800)/480
=50000 or 5.0x10^4
The minimum power required, if a truck weighing 3 × 10 ⁴ newtons were driven up a hill that is 1.6 × 10 ³ meters long to a level area that is 8.0 × 10 ² meters above the starting point, is 5 × 10 ⁴ Watt.
What is power?Power is the rate at which work is accomplished or energy is delivered in science and engineering. It can be written as W/t, which is the product of the amount of work finished (W) or energy transferred (E) divided by the amount of time (t).
A low-powered motor can carry out the same amount of work slowly, whereas a high-powered motor can finish it rapidly. To measure work (or energy) per unit of time, power units include foot-pounds per minute, joules per second (or watts), and ergs per second.
Given:
The weight of the truck, F = 3 × 10 ⁴ N,
The length of the hill, s = 1.6 × 10 ³ m,
The distance travelled, S = 8 × 10 ² m,
The time of the trip, t = 480 sec,
Calculate the power by the formula given below,
[tex]Power = Force \times displacement / time[/tex]
P = 3 × 10 ⁴ × (1.6 × 10 ³ - 8 × 10 ²) / 480
P = 5 × 10 ⁴ Watt
Therefore, the minimum power required, if a truck weighing 3 × 10 ⁴ newtons were driven up a hill that is 1.6 × 10 ³ meters long to a level area that is 8.0 × 10 ² meters above the starting point is 5 × 10 ⁴ Watt.
To know more about power:
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Strontium, Sr, will
valence electrons when forming an ionic bond.
O lose 1
Olose 3
Olose 2
O gain 1
Answer:
lose 2
Explanation:
Sr is an alkali metal which forms 2+ ion.
which hygiene step would best help prevent the flu
Answer:
taking a shower brushing your teeth and washing your hands
Explanation:
Answer:
D. Washing your hands regularly
Explanation:
the person is not able to see the far lying object clearly. which type of lens will the doctor prescribe him give reason?
Answer:
correction of farsightedness uses a converging lenses that compensates for the under convergence by the eye. the converging lens produces an image farther from the eye than the object so that farsighted can see it clearly.
If your body were a tall building, your skeleton would be
A car increases velocity from 30 m/s to 60 m/s in 4 seconds. Calculate the average acceleration of the car over this time.
0.3 m/s2
7.5 m/s2
0.6 m/s2
4.8 m/s2
Answer:
B.7.5m/s2
Explanation:
average acceleration=change invelocity/time taken
a=(60-30)/4
=7.5m/s2
The average acceleration of the car 7.5 m/s²
The parameters given in the question are;
initial velocity= 30 m/s
final velocity= 60 m/s
time= 4 seconds
The formula that can be used to calculate the average acceleration is
= final velocity-initial velocity/time
= 60-30/2
= 30/2
= 7.5
Hence the average acceleration is 7.5 m/s²
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1. In your own words explain what happens at a subduction zone. 2. In your own words explain what happens at a mid-ocean ridge. 3. At a subduction zone what causes magma to rise?
Answer:
1. The subduction zone serves as the meeting point for two tectonic plates.
2. At the Mid- Ocean ridge, decompression melting occurs.
3 What causes the magma to rise is the increase in pressure caused by collection of gases by the magma.
Explanation:
Subduction zone is define as a zone where tectonic plates ( an oceanic plate slides beneath a continental plate) meets and contributes to the rise of magma to the surface in geological sciences.
At the Mid - Oceanic ridge, decompression melting occurs. As mantle ascends beneath the mid-ocean ridge, less and less rock lies above it, so large pressure changes occur, which leads to melting. The melt is less dense than the solid, and rises to the surface to form the oceanic crust.
At the subduction zone the magma that is formed is usually made up of silica rich lava. Thick silica rich magma does not release the gasses very easily so they build up inside the magma chamber. As the gasses collect in the chamber, the pressure rises. It is possible for the pressure to rise so much that the chamber cannot contain the magma and it erupts explosively.
which is larger 15mm or 0.15cm
Answer:
1 cm = 10mm
Explanation:
hey there both are equal
You are twice as likely to become good friends with the person who is in the dorm room next to you than the person two doors down. This is due to:
A. Proximity.
B. Common Interests.
C. Shared Values.
D. Social Background
In lab you submerge 100 g of iron nails at 40 0C in 100 g of water at 20 0 C. Specific heat of iron is 0.12 cal/g∙0C. Equate the heat gained by water to the heat lost by nails and show that the final temperature of water becomes 22.1 0C.
Let T be the final temperature of water and nails (iron).
Given that the initial temperature of 100 g nails, [tex]T_{1F}=40^{\circ}C[/tex].
Specific heat of the iron, [tex]C_F=0.12 cal/g^{\circ}C[/tex].
So, the heat lost by nails [tex]= mC_F(T_{1F}-T}[/tex]
[tex]=100\times 0.12 \times (40-T)\cdots(i)[/tex]
The initial temperature of 100 g water, [tex]T_{1w}=20^{\circ}C.[/tex]
Specific heat of water, [tex]C_w=1 cal/g^{\circ}C[/tex]
So, the heat gained by water [tex]= mC_w(T-T_{1w}}[/tex]
[tex]=100\times 1 \times (T-20)\cdots(ii)[/tex]
As the exergy is conserved, so
the heat lost by the nails = the heat gained by the water
From equation (i) and (ii), we have
[tex]100\times 0.12 \times (40-T)=100(T-20)[/tex]
[tex]\Rightarrow 0.12(40-T)=T-20[/tex]
[tex]\Rightarrow 0.12\times 40 -120T=T-20[/tex]
[tex]\Rightarrow 0.12T+T=4.8+20[/tex]
[tex]\Rightarrow 1.12T=24.8[/tex]
[tex]\Rightarrow T=24.8/1.12= 22.1^{\circ}C[/tex]
Hence, the final temperature of both, iron nails as well as water, become [tex]22.1^{\circ}C[/tex].