Answer:
0
Explanation:
as Newton 1st Law said that every object will remain at rest or in uniform motion (constant speed) in a straight line unless compelled to change its state by the action of an external force
Net Force = 0
What does bubble universe mean
Answer:
Our universe may live in one bubble that is sitting in a network of bubble universes in space. ... The concept is known as a "parallel universe," and is a facet of the astronomical theory of the multiverse. The idea is pervasive in comic books, video games, television and movies.A child tugs on a rope attached to a 0.62 kg toy with a horizontal force of 16.3 N. A puppy pulls the toy in the opposite direction with a force of 15.8 N. What is the acceleration of the toy
Answer:
[tex]a=51.77\ m/s^2[/tex]
Explanation:
Given that,
The mass of a toy, m = 0.62 kg
Force with which a child pull the toy = 16.3 N
The force with which the toy pulled in the opposite direction = -15.8 N
We need to find the acceleration of the toy. Let F be the net force acting on the toy. It is equal to :
F = 16.3 N - (-15.8 N)
= 32.1 N
Let a be the acceleration of the toy. Using Newton' second law of motion to find it.
F = ma
[tex]a=\dfrac{F}{m}\\\\a=\dfrac{32.1}{0.62}\\\\a=51.77\ m/s^2[/tex]
So, the acceleration of the toy is [tex]51.77\ m/s^2[/tex].
At which temperature does water have particles with a greater average kinetic energy than water with a temperature of 30°C?emperature of 30°C?
77°F
95°F
280K
300K
Answer:
95 degree Fahrenheit
Explanation:
Explanation:
First we convert these temperatures into °C:
77°F = 25°C
95°F = 35°C
280K = 6.85°C
300K = 26.85°C
When temperature increases, water molecules have a greater average kinetic energy ans are more likely to collide with each other.
Out of the 4 temperatures, only 95°F (35°C) is of a higher temperature than 30°C. Hence 95°F is the answer.
A box is placed on a 30o frictionless incline. What is the acceleration of the box as it slides down the incline
Answer:
2.78m/s²
Explanation:
Complete question:
A box is placed on a 30° frictionless incline. What is the acceleration of the box as it slides down the incline when the co-efficient of friction is 0.25?
According to Newton's second law of motion:
[tex]\sum F_x = ma_x\\F_m - F_f = ma_x\\mgsin\theta - \mu mg cos\theta = ma_x\\gsin\theta - \mu g cos\theta = a_x\\[/tex]
Where:
[tex]\mu[/tex] is the coefficient of friction
g is the acceleration due to gravity
Fm is the moving force acting on the body
Ff is the frictional force
m is the mass of the box
a is the acceleration'
Given
[tex]\theta = 30^0\\\mu = 0.25\\g = 9.8m/s^2[/tex]
Required
acceleration of the box
Substitute the given parameters into the resulting expression above:
Recall that:
[tex]gsin\theta - \mu g cos\theta = a_x\\[/tex]
9.8sin30 - 0.25(9.8)cos30 = ax
9.8(0.5) - 0.25(9.8)(0.866) = ax
4.9 - 2.1217 = ax
ax = 2.78m/s²
Hence the acceleration of the box as it slides down the incline is 2.78m/s²
One scientist is using an electromagnetic wave to map the dust between stars. The electromagnetic wave has shorter wavelength than radio waves but longer wavelength than visible light. What electromagnetic wave is the scientist using? X-ray Infrared light Gamma ray Ultraviolet radiation
PLEASE ANSWER ASAP! It would be EXTREMELY appreciated if you could answer both. These are free responses, so try to make your answer somewhat original. Thanks in advance! And I will mark brainliest!
HELP PLEASE BOYLES LAW
Answer:
3 L
Explanation:
From the question given above, the following data were obtained:
Initial volume (V₁) = 2 L
Initial pressure (P₁) = 0.75 atm
Final pressure (P₂) = 0.5 atm
Final volume (V₂) =?
Using the Boyle's law equation, the new volume (i.e final volume) of the Ne gas can be obtained as:
Initial volume (V₁) = 2 L
Initial pressure (P₁) = 0.75 atm
Final pressure (P₂) = 0.5 atm
Final volume (V₂) =?
P₁V₁ = P₂V₂
0.75 × 2 = 0.5 × V₂
1.5 = 0.5 × V₂
Divide both side by 0.5
V₂ = 1.5 / 0.5
V₂ = 3 L
Thus, the new volume of the Ne gas is 3 L
Select the correct rocks.
Identify the igneous rocks.
Answer:
Red Volcano Rock and the Lava Rock Covered in Sulphur
Explanation:
Igneous Rocks are formed by volcanoes, lava, and magna. Sandstone is sedimentary and Slate is metamorphic. The other two are literally formed by volcanoes.
Answer:
Red Volcano Rock and the Lava Rock Covered in Sulphur
Explanation:
lol gn sleep well:))
Answer:
you to
Explanation:
sleep well and long and thank you for the points
If the specific heat of water is 4.18 J/gC, what is the approximate increase in thermal energy when the temperature of 10 g of water is raised from 15°C to 35°C?
Answer:
840
Explanation:
Multiply the specific heat and mass. Then subtract the initial temperature from the final one to get 20. Now multiply all your numbers together.
Static stretching is done by slowly moving a joint towards its maximum range of motion. You will feel a gentle pulling sensation in the muscle being stretched.
True or False
Answer:
True
Explanation:
It is true that you will feel a gentle pulling sensation in the muscle being stretched when Static stretching is done by slowly moving a joint.
What is static stretching?Static stretching is most likely the most well-known and time-honored method of stretching. This entails extending a muscle to its maximum length and then maintaining that position for at least 15 to 20 seconds.
With each stretch, the emphasis is frequently on focusing on a specific muscle group.
Hence it is true that you will feel a gentle pulling sensation in the muscle being stretched when Static stretching is done by slowly moving a joint.
To learn more about the static stretching refer to the link;
https://brainly.com/question/1237629
is muscular energy is used by us while climbing ladder
Answer:
yes broHope it helps youKate is riding on a train and notices that the wildflowers by the side of the tracks seem to be moving by much faster than the mountains in the distance. This is an example of
Answer: motion parallax
Explanation:
Motion parallax refers to a form of depth perception whereby objects that are closer to an individual appears to move at a faster speed than the objects that are far.
Therefore, Kate is riding on a train and notices that the wildflowers by the side of the tracks seem to be moving by much faster than the mountains in the distance is an example of motion parallax.
Explain the process used to translate the chemical equation below into a chemical equation written in words. Use details to support your answer.
MgO+C=CO(g)+Mg
Answer:
See explanation
Explanation:
We have to first put down the balanced reaction equation;
MgO+C------->CO2(g)+Mg
We then have to identify each specie in the reaction equation. The reactants are;
Magnesium oxide and carbon
The products are
Carbon dioxide and magnesium metal
So the word equation is as follows;
Magnesium oxide + carbon ----> carbon dioxide + magnesium
In a sentence form;
One mole of magnesium oxide reacts with one mole of carbon to yield one mole of carbon dioxide and one mole of magnesium metal.
crude oil coal and peat are examples of fossil fuels name another one
Answer:
petroleum and Natural gas are fossil fuels
Explanation:
What type of fuze is energized after the projectile is fired and functions when the projectile nears the target
Answer:
Proximity or variable time fuze
Explanation:
A fuze are components that produces a projectile bursting charge, thereby causing a detonating or release when its activation conditions are met.
There are different types of fuzes classified based on their function. Types are:
Time fuzes: This is a type of fuze that start to work after a projectile has been firedProximity or variable time fuze: This type of fuze is energized after the projectile is fired and function when the projectile nears the target.Percussion fuze: This type of fuze function when the projectile strike or penetrate a target.A gymnast performs an amazing flip! He lands on the floor and his feet put a force downwards on the floor. Newton’s Third Law reaction force is:
(A)The weight of gravity on the gymnast
(B)The weight of gravity on the floor
(C)The force of the floor upwards on his feet
(D)The force of the floor downwards on his feet
Answer:
Solution in photo
Explanation:
A stunt woman falls into a net. Assume she experiences upward acceleration magnitude while touching the net. Thanks :)
Answer:
I think its C or A
Explanation:
What is Physics? How is Physics used in your everyday life? Give at least two examples and explain your answer. You need at least 3 examples
Answer:
Physics is a brand of science that deals with nature, matter, and energy. Physics is used in the everyday world because we have simple objects such as levers that use physics. we also have Newton's law of transportation that manipulate everyday objects making them move, so without physics many objects wouldn't move.
differentiate between basic quantities and physical quantities
Answer:
Base quantities are the minimum numbers of the physical quantities. Base quantities are defined as the physical quantities which can not be defined in terms of other physical quanities. There are seven base quantities. Physical Quantitie Units Derived Quantities are defined as those physical quantities which are derived from the base quantities.
Explanation:
A physical quantity is a property of a material or system that can be quantified by measurement. A physical quantity can be expressed as the combination of a numerical value and a unit. For example, the physical quantity mass can be quantified as n kg, where n is the numerical value and kg is the unit. A physical quantity possesses at least two characteristics in common, one is numerical magnitude and other is the unit in which it is measured.
Distinguish between a basic physical quantity and a derived physical quantity giving an example of each. Answers. Basic physical quantities are quantities which can be obtained without derivation. e.g Temperature. While derived physical quantities are quantities which can only be obtained from other physical quantities.
pain... physical, mental, emotional?
PLEASE HELP: A planet has an average distance to the sun of 3.36AU. In two or more complete sentances, explain how to calculate the orbital peroid of the planet and calculate it.
Answer:
Use the AU formula
Explanation:
1 astronomical unit = 149597871 kilometer
Q12. How much force is applied on the body when 150 joule of work
is done in displacing the body through a distance of 10m in the
direction of force?
Force = Work/distance
Force = 150/10
= 15 Newtons
Force = 15 Newtons
Therefore, 15 newtons of force is applied to the body when 150 joules of work
is done in displacing the body through a distance of 10m in the direction of the force.
The body starts from rest and moves evenly accelerated. At the end of the eighth second of movement, its speed is 16 m / s. Calculate the acceleration of the body and how fast it was at the end of the fourth second.
Answer:
a = 2 m/s²
v₄ = 8 m/s
Explanation:
We can find the final speed at the end of eight second by using first equation of motion:
[tex]v_{f} = v_{i} + at\\[/tex]
where,
vf = final velocity at 8th second = 16 m/s
vi = initial velocity = 0 m/s
a = acceleration = ?
t = time = 8 s
Therefore, using the values in the equation we get:
[tex]16\ m/s = 0\ m/s + a(8\ s)\\\\a = \frac{(16\ m/s)}{8\ s}[/tex]
a = 2 m/s²
Now, we can apply same equation of motion for 4 seconds of motion to find the velocity at the end of 4th second (v₄):
[tex]v_{4} = 0\ m/s + (2\ m/s^2)(4\ s)\\[/tex]
v₄ = 8 m/s
If you drop a baseball and a soccer ball at the same time which will hit the ground first?
Answer:
Baseball
Explanation:
If two objects are the same size but one is heavier, the heavier one has greater density than the lighter object. The heavier object would fall and hit the floor first. In other words the baseball would hit the ground first.
HOPES THIS HELPS YOU!!! PLEASE MARK AS BRAINLIEST???
Two masses, m1 & m2 are separated by a distance of 12 m between their centers. The gravitational force attraction between the two masses is measured to be 6.0 x 10-6 N. The masses are then moved closer to one another, to a distance of 4 m between centers, and the resulting gravitational force is measured again. According to the Universal Law of Gravitation, the second measurement is
The universal law of gravitation says that the gravitational force between the two masses is
F₁ = G m₁ m₂ / r ² = 6.0 × 10⁻⁶ N
where r = 12 m. When the distance between the two masses is reduced to R = 4 m, i.e. 1/3 of the original distance r, we have
F₂ = G m₁ m₂ / R ² = G m₁ m₂ / (r/3)² = 1/9 G m₁ m₂ / r ² = 1/9 F₁
so that the resulting gravitational force has 1/9 the first magnitude, or
F₂ = 1/9 (6.0 × 10⁻⁶ N) ≈ 6.7 × 10⁻⁷ N
Why do Kepler's laws describe?
Answer:
The shape of an orbit
Explanation:
Answer:
The geometry of an orbit
Explanation:
AYE PECKS
IIIIIII-PLEASE HELP-IIIIII THERE ARE TWO QUESTIONS (ILL GIVE BRAINLIST)
Answer:
the answers should be B and D
Answer:
Q. 1 is transform
Q. 2 is plates move past each other sideways
Explanation:
A 400kg boulder sits on top of a 500m cliff. What is its PE when it reaches 250m from the ground?
Answer:0
Explanation:
gang sh
Answer:
980,000J
Explanation:
In a convection current, why does cool air take the place of warmer air?
1.Cool air is denser than warm air, so it sinks to take the place of rising warm air.
2.Cool air is less dense than warm air, so it sinks to take the place of rising warm air.
3.Cool air is denser than warm air, so it rises to take the place of sinking warm air.
Answer:
1. Cool air is more dense than warm air so it sinks to take the place of the warm rising/buoyant air.
Explanation:
This is why heating a room with cold outside walls or glass windows (if budget can afford), we use warm radiant heaters at the floor level to break up the convection current/cold draft.
As opposed to just diffusing air at the ceiling level, which is good in summer as cool air falls (air conditioning is in range of 55 to 65 degf out of the diffuser), mixing with warmer room air.