Work
In physics work is said to be done when a force acting on a body displaces it through a certain distance. The work by a constant force is measured by the dot product of force will displacement.
i.e. W = F.S or W = F S cosq …(1)
where F = force and S = displacement
And q = angle between F and S.
Hope this helps! <3
an object has volume of 5cm and a mass of 20 g what is the density of the object
A motorcycle travels at a constant 20 m/s for 10 s. How far has it traveled?
d =200 m
Explanation:Hi there !
Velocity formula
v = d/t => d = v×t
d = distance
t = time
d = 20m/s×10s = 200 m
Good luck !
Rita has two small containers, one holding a liquid and one holding a gas. Rita transfers the substances to two larger containers. Compare the behavior of the atoms in the liquid and in the gas once they are moved to the larger containers
Answer: liquids take the shape of the container they are in, but have definite volume. like liquids the shape of a gas changes with the container. unlike liquids the volume of a gas changes depending on the container it is in
Explanation:
Answer:
liquids flow freely, they take the shape of the container they are in, but have a definite volume. Like liquids, the shape of a gas changes with the container. This is because the atoms in a gas move rapidly and freely to fill any available space. Unlike liquids, the volume of a gas changes depending on the container it
Explanation
The various different parts of a cell, called organelles, are beneficial to the cell in what way?
Answer:
The various organelles increase the energy used by the cell.
Explanation:
The various different parts of a cell, called as organelles, are beneficial to the cell in different ways such as energy production, protein synthesis, heredity information and packaging of proteins.
What are Organelles?An organelle is a specialized part of the cell which serves a specific purpose within the cell. There are various organelles present within a cell and these organelles also vary depending on what kind of cell we are talking about, whether it be a plant or animal cell such as chloroplast and vacuole.
The different organelles in the cell perform different functions such as ribosomes synthesize proteins, mitochondria synthesize ATP, chloroplast involved in photosynthesis, and nucleus contain heredity information of the cell.
Learn more about Organelles here:
https://brainly.com/question/2135497
#SPJ6
What is the acceleration due to gravity?
А
B
9.2
12.3
С
8.83
D
9.81
Do Gamma Rays tend to behave like a particle or a wave?
In your own words, describe conservation of mass. Use examples to support your answer.
Answer:
The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed
Explanation:
Ecology is the study of
O Genetics
O Organisms and their environment
O Human Anatomy
O Cells
Answer:
Organisms and their environment
HURRY PLEASEE
Whenever an object exerts a force on another object, the second object exerts a force of the same magnitude, but in the_______
of the first object
direction to that of the first object
A) opposite
B) same
C) right angle
D) vertical
Answer:
A)Opposite direction
Explanation:
hope this helps ;)
A warehouse is 1980 cm long,1050cm wide and 495cm high. What is the volume in cubic meters?
Answer:
It should be 1,029.105 m³
But I think you can ignore the 105 because it essentially doesn't make a difference
Hurry plz there’s a timer!!
Paco was driving his scooter west with an initial velocity of 4 m/s. He accelerates at 0.5 m/s for 30 seconds.
What is his final velocity?
O 2 m/s
O 8 m/s
O 19 m/s
O 60 m/s
Answer:
the answer is 19 ,30 (second) times 0.5= 15
15+4= 19
After Paco drives his scoter west with an initial velocity of 4 m/s and then accelerates at 0.5 m/s² for 30 s, his final velocity is 19 m/s, so the correct option is the fourth.
The final velocity of Paco can be calculated with the following equation:
[tex] v_{f} = v_{i} + at [/tex]
Where:
[tex] v_{f}[/tex]: is the final velocity =?
[tex]v_{i}[/tex]: is the initial velocity = 4 m/s
a: is the acceleration = 0.5 m/s²
t: is the time 30 s
Hence, the final velocity is:
[tex] v_{f} = 4 m/s + 0.5 m/s^{2}*30 s = 19 m/s [/tex]
Therefore, the correct option is 19 m/s.
You can find more about acceleration and velocity here: https://brainly.com/question/9163788?referrer=searchResults
I hope it helps you!
Only for people who know the answer to this question fully can answer this others please leave this question.So, Variation is caused by what two factors...????
PLEASE ANSWER IF YOU KNOW 100% TO THE ANSWER OF THIS QUESTION ...Thanks
Answer:
Please elaborate which variation. There are different types of variation
A ___ is the unit of measurement for force.
Answer:
Newton (N)
Explanation:
A newton is the unit of measurement for force
The geometry of a hydrogen-bromide molecule is ____.
Answer:
polar-molecule
Explanation:
A pen cap floats in a plastic lemonade 3/4 full of water vif you squeeze the bottle the pen cap sinks to the bottom if you then let go of the bottle the pen cap floats to the surfce whe the bottle squeezed what ,if anything happens to the distance between the air molecules inside the bottle????????/
Answer:
The pressure of the air molecules inside the pen cap increases and the volume occupied by the air decreases such that the combined volume occupied by the pen cap and the air volume reduces while the combined mass of the pen cap and the air molecules remain the same
Given that density = The mass/Volume, we have that the density varies inversely as the volume, and as the volume reduces, the density increases
Upon squeezing, therefore, as the new combined density of the pen cap and the air molecules rises to more than the density of the water in the bottle, then, the pen cap air molecule is relatively more denser than the water, which will result in the pen cap sinking to the bottom of the bottle
Explanation:
a pulley of radius 0.9m is used to lift a bucket from the well. if it took 3.6 rotations for the pulley to take water out of the well,how deep is water in the well?
Answer:
h = 20.36[m]
Explanation:
To solve this problem we must calculate the perimeter (length of a circumference) of the circumference, which is denoted by the following equation:
L = 2*π*r
where:
r = radius = 0.9[m]
π = 3.1416
L = 2*(3.1416)*(0.9)
L = 5.654[m]
Now we know that the pulley or circumference had to rotate 3.6 times to get the water out of the well. In this way the depth of the well can be calculated by means of the following equation:
h = 3.6*L
h = 3.6*5.654
h = 20.36[m]
answer this plzz and ill give you 12 points
Answer:
Explanation: I think its D
The most massive automobile to have been manufactured on a regular basis
was the Russian-made Zil-41047. If one of these cars was to move at just
8.9 m/s, its momentum would be 2.67 x 10^4kg • m/s. Use this information
to calculate the mass of a Zil-41047.
Use the formula for momentum: Momentum = (mass) x (speed)
2.67 x 10⁴ kg-m/s = (mass) x (8.9 m/s)
Mass = (2.67 x 10⁴ kg-m/s) / (8.9 m/s)
Mass = 3,000 kilograms
That's 3 metric tons. On Earth, it weighs 6,614 pounds, or 3.3 US tons.
It probably performs a lot like my car.
PLEASE HELPPP :))
why do ocean ridges rise above the surrounding ocean floor?
Answer:
because of the disturbence beneath the ocean
hope helps u
A boy pulls a wovon with a force or 6 Neast as another boy pushes it
with a force of 4 N east. What is the net force?
Answer:
The net force is 10 N.
Explanation:
A "net force" occurs when a particular object accelerates. It refers to the total number of forces that act on an object.
The boy pulling the cart and the other pushing it do their actions in the same direction. The force of pulling is 6 N while the force of pushing is 4 N. This means that the total force will not be cancelled.
To get the net force, add both forces since they are in the same direction (east).
Net force = 6 N + 4 N
Net force = 10 N (Newtons)
A man’s mass is 100 pounds on Earth. His weight is 445N. What would change if this man were on the moon?
A) His mass
B) His weight
C) His weight and mass
D) Neither the mass or the weight
Answer: B) weight
Explanation: Your mass does not change on the moon
jet aeroplanes and rockets work on the principal of newton's third law of motion. explain. fast I will mark brainly
Answer:
Explanation:
According to Newton's third law of motion, every action has an equal and opposite reaction. When a rocket starts, it releases some gases which exerts and equal and opposite force which helps the rocket to move.
Hope this helps
plz mark as brainliest!!!!!!
Please help! Due in 10 min! Please show work!
Davien and Jackson are headed to a beach that is 50km from school. At noon, Davien leaves his house that is 10 km closer to the beach than the school is and moves at 40 km/h. Jackson starts from school at 12:30 P.M. and moves at 100 km/h. What time does Davien reach the beach? *
Answer:
They both arrive at 1:00 PM
Explanation:
Amount Davien has to drive : 40km
Amount Jackson has to drive = 50km
Davien moves at 40km/h,
Therefore, it only takes Davien 1 hour to get there.
12:00 PM + 1 hour = 1:00 PM
Jackson moves 100km/h
He needs to drive 50 min, so 50/100 = 1/2
It takes him half an hour, or 30minutes
If he leaves at 12:30, then he gets there at 1:00 PM
D
Question 1
1. All matter is made up of extremely small particles called:
nanospecks
dust
atoms
O mass
Answer:
Atoms
Explanation:
That's what everything is made up of.
The_____ of a substance is the temperature at which a solid begins to liquefy
Answer:
Melting point
Explanation:
when a solid turns to a liquid, it is melting
4. Jed drops a 10 kg box off of the Eiffel Tower. After 2.6 seconds, how fast is the box moving? (Neglect air resistance.)
Answer:29.4m/s
Explanation: Vf=Vi +at= 0 initial velocity +(9.8)(3)= 29.4 m/s
A plane lands and comes to a complete stop through 180 m of runway with a deceleration of 6.25 m/s2 [N]. Determine the plane’s velocity when it first touched the landing strip.
Answer:
47.43 m/s
Explanation:
Given that,
Final speed of a plane, v = 0
Distance, d = 180 m
Acceleration of the plane, a = -6.25 m/s² (deceleration )
We need to find the plane's velocity. Let it was u. So, using the third equation of kinematics as :
[tex]v^2-u^2=2ad\\\\u^2=0^2-2\times (-6.25)\times 180\\\\u=\sqrt{2250} \\\\u=15\sqrt{10}\ m/s\\ \\\text{or}\\\\u=47.43\ m/s[/tex]
So, the plane's velocity when it first touched the landing strip is 47.43 m/s.
which statement best explains the genetic variation that results from sexual reproduction
a. each chromosome contains many copies of the same gene
b. offspring receive genes that are exactly the same as one parent’s genes
c. each chromosome contains many different genes
s. offspring receive a mix of genes from two different parents
Answer:
S. offspring recieve a mix of genes from two different parents
Offspring acquire genes that are exactly the same as one parent’s genes. Option B is correct.
Given that,
To choose the statement best explains the genetic variation that results from sexual reproduction.
Sexual reproduction is the process of creating new organisms by combining the genetic details of two individuals of different genders. The genetic details in most animals is carried on chromosomes in the nucleus of reproductive cells called gametes, which unite to form a diploid zygote.
Here,
The solution is due to the fact that each parent has two distinct sets of genes. Furthermore, each parent only passes on half of their DNA to their offspring. And that the half that is passed on is arbitrary. All of this ensures that each child is born with a distinct set of genes.
Thus, Offspring acquire genes that are exactly the same as one parent’s genes. Option B is correct.
Learn more about sexual reproduction here:
https://brainly.com/question/7464705
#SPJ2
why is lightning seen before thunder is heard?
Answer: Lightning is seen before thunder is heard" is correct about thunderstorms
Explanation:
A "thunderstorm" is a disturbance in weather that is related with lightning, dense clouds, heavy rain, hail or thunder. During a thunderstorm, lightning is always seen before thunder because the speed at which the light travels is faster than that of sound's speed.
Also, thunder's noise could be heard up to 10 km away from lightning flash. The thunder sound lasts for a few seconds. The thunder makes noise because of the rapid and fast expansion of the heating of the air.
Pls mark as brainliest!
Answer:
because light is faster than sound
Explanation:
the speed of light is 299 792 458 m / s
and the speed of sound is 343 m / s
can someone please help me I don’t understand how i’m supposed to solve this
Answer:
the net force is 10 and it is pushing to the right
Explanation:
The net force is the total and sonce the 20N is overpowering the 10N it will have 10N which will put the 20N ahead