Answer:
Conservation principles tell us that some quantity, quality, or aspect remains constant through change.
Explanation:
Ball A is projected vertically upwards at a velocity of 16m.s-¹ fron the ground. ignore the effects of air friction. use the ground as zero reference. a) calculate the time taken by ball A to return to the ground. b) draw a velocity time graph for ball A
Answer: 3.26 s
Explanation:
Given
The ball is projected upward with a velocity [tex]u=16\ m/s[/tex]
Using the equation of motion
[tex]s=ut+\frac{1}{2}at^2[/tex]
Here, displacement is zero as the ball returns to its initial position
[tex]\Rightarrow 0=16\times t-0.5\times g\times t^2\\\Rightarrow t(16-0.5\times 9.8\times t)=0\\\text{i.e.}\ t=\dfrac{16}{4.9}=3.26\ s[/tex]
the velocity of the ball at any instant is given by
[tex]v=u+at\\v=16-9.8t[/tex]
help pls this is for science
Answer:
It's a transverse wave.
A toy cart with a weight of 10N moves with a constant velocity of 2 m/s to the right on a horizontal table. According to Newton's Laws of Motion, which of the following statements is correct?
a
The table exerts a force of 10N upward on the toy cart.
b
The toy cart exerts a force of 10N upward on the toy table.
c
The toy cart exerts a force of 2N downward on the table.
d
The toy cart exerts a force of 2N to the right on the table.
Answer:
Its A ik cuz i just studied it when i was answering this question...
Explanation:
have a good day!
what is jello tell me i know lets see if you know
You travel 200 m in 120minutes. What is your speed in miles per hour?
Answer:
100
Explanation:
60 minutes is an hour and there are 120 minutes so there are 2 hours. You divide 200 m by 2 and you get 100.
Ana walks from 4 m to 200 cm. Which of the following statements is true about
her motion? Explain
distance = 2 hm
distance = 20 cm
distance = 2 cm
distance = 2.0 m
Kelly sits on a rock in a field. Which of the following examples correctly name force pairs? Select all that apply.
А
Kelly pushes on the rock, and the rock pushes on Earth.
B
Earth pulls on Kelly, and Kelly pulls on Earth.
с
The rock pushes on Earth, and Earth pulls on the rock
D
Kelly pushes on the rock, and the rock pushes on Kelly.
Answer:
A
Explanation:
what’s the equation for this
Define discrimination and write a sentence using the word.
Define discrimination and write a sentence using the word.
Answer:
discrimination: prejudice towards a person/group based on their race, sex, age, and/or sexual orientation
Explanation:
People of color face discrimination because of the color of their skin.
Answer:
Discrimination is treatment or consideration of, or making a distinction of or against a person or thing based on the group, class or category to which that person is perceived to belong or rather.
help me with this question plz
Answer:
Greatest position of the ball are z
The distance from Earth to the North Star is about 430 light-years. Which of the following statements describes why scientists use the light-year unit to measure distance in space?
A.) A light-year is very small and distance in space are very small
B.) A light-year unit is very small and the distance in space are very large
C.) A light-year unit is very large and distance in space are very small
D.) A light-year unit is very large and distance in space are very large
Answer:
D
Explanation:
D
A measure of the body's resting energy expenditure based on data that is collected four hours after eating or physical activity is called the _________?
How many significant digits are in the number 0.010?
Oxygen is needed for the reactions that cause artifacts to decay in the ocean.
Some ancient shipwrecks have been well-preserved deep in the ocean.
Review the information in the data table. Which statement about the
relationship between rates of reaction and concentration of reactants is true?
Object
Location
Decay time
Average
concentration of
oxygen
Wooden ship
Deep ocean
Very low
1,000 years
Wooden rowboat Shallow beach
High
1 to 2 years
O A. Reactions are faster when there is a lower concentration of
reactants.
Answer: The answer is C.
Explanation:Just took the quiz
The statement about the relationship between rates of reaction and concentration of reactants true is reactions are slower when there is lower concentration of reactants.
What is chemical reaction?The chemical reaction is the reaction between two reactants which led to the formation of products.
The products are substances which forms after reaction. The reactants are the substances which are original materials.
Oxygen is needed for the reactions that cause artifacts to decay in the ocean.
Some ancient shipwrecks have been well-preserved deep in the ocean.
Reviewing the information in the data table, we conclude that reactions are slower when there is lower concentration of reactants.
Thus, the correct option is C.
Learn more about chemical reaction.
https://brainly.com/question/22817140
#SPJ5
what type of galaxy tends to be the oldest? Explain.
Answer:
Elliptical galaxies, such as M87, are the oldest and roundest galaxies in the universe. Astronomers think these galaxies are formed in major mergers—dramatic collisions between galaxies that result in one massive galaxy being entirely consumed by another.
Explanation:
hope this helps...
have a good day...
Write forty million in scientific notation.
Answer:
40,000,000 ⇒ scientific notation
= 4 × [tex]10^{7}[/tex]
i need help with 1-10
Answer:
1) C. Energy
2) A. Joule
3) D. Joule
4) B. Potential
5) A. Greater
6) C. Largest
7) A. Speed and mass
8) A. Kinetic
9) A. Kinetic
10) D. Height and mass
A 4kg object has a momentum of 12 kg*m/s, what is the objects velocity?
Answer:
3m/s
Explanation:
momentum=mass x velocity
to find velocity...
we change subjects and make velocity the subject,thus , velocity=momentum/mass
v=12/4 =3m/s.
2. You are stirring some soup on the stove and you notice that the metal spoon is getting hot.
What type of heat transfer?
A small dog walks 12 meters east and then 5 meters north. How many meters is the dog from her starting position?
Answer:
17 meters
Explanation:
because 12 meters +5 meters =17 meters
Can someone please help me and i will give brainliest if i can.
Answer:
Because 1 change in one factor can effect the other and that one can effect the other and so on and so on.
So, let's just say water were to stop flowing, how would the oceans take that? How would precipitation take it?
It's the space between two object
5 Letter word
Answer:
Matter? Atoms? Oxygen Molecules?
A marble is thrown horizontally with a speed of 15.0 m/s from the top of a building. When it strikes the ground, the marble has a velocity that makes an angle of 65.0° with the horizontal. From what height above the ground the marble was thrown. How far from the base of the building, did the marble land?
the main purpose of the turbine in a turbojet engine is to
Answer:
The main purpose of the turbine in the turbojet engine is to Drive the compressor.
Explanation:
A jet plane can travel at a speed of 600 km/h. How far will the jet travel if it flies at full speed for 2 hours?
Answer:
that jet will fly 1200 km in 2 hours
A pendulum has a mass of 0.060 kg swinging at a small angle from a light string, with a period of 1.4 s. What is the length of the pendulum?
Answer:
0.5 m
Explanation:
From the question given above, the following data were obtained:
Mass (m) = 0.060 kg
Period (T) = 1.4 s
Lenght (L) =?
NOTE:
1. Acceleration due to gravity (g) = 10 m/s²
2. Pi (π) = 3.14
The length of the pendulum can be obtained as follow:
T = 2π√(L/g)
1.4 = 2 × 3.14 × √(L/10)
1.4 = 6.28 × √(L/10)
Divide both side by 6.28
1.4 / 6.28 = √(L/10)
Take the square of both side
(1.4 / 6.28)² = L/10
Cross multiply
L = 10 × (1.4 / 6.28)²
L = 0.5 m
Therefore, the length of the pendulum is 0.5 m
Answer:0.49
Explanation:
Khan academy
. 8 quarts = ________ pints 12 pints 10 pints 4 pints 16 pints
Answer:
According to my calculations it equals to 16 pints
Explanation:
You know that there is a calculator online for this stuff right?
Nuclear energy is released during____.
SELECT ALL THAT
1. Chemical reactions
2. Fission
3. Radioactive decay
4. Breakup of molecular bonds
5. Induced splitting of atoms
Answer: fission and radioactive decay
And induced splitting of atoms
Explanation:
6. Ella holds an ice cream cone in her hand. She soon notices that her hand begins
to feel cold. What is different about the particles that make up her hand?
A They are getting larger.
B They are gaining average energy.
C They are moving slower on average.
D They are joining together.
Answer:
C
Explanation:
the ice cream is transferring the coldness into her hand and slowing down the particles. hot means they move faster, cold is to slow down
HERES THE ANSWER AND QUESTION
Check all that are solutions of the inequality.
-1.2
0
-1.4
Negative 1 and one-third
-1.25
-1
THE ANSWER IS A,B,F
Answer:
agree
Explanation:
Answer:
THE ANSWER IS A,B,F
Explanation: