Answer:
D and E
Explanation:
They both produce a new object or substance afterwards.
Answer:
D. and E.
Explanation:
Hope this helps and I hope u have an Amazing day!!
Our atmosphere exerts a pressure of 14.7 lb/in2. What is the force on one square foot of the earth’s surface caused by the atmosphere
Answer:
The force on one square foot of the earth’s surface caused by the atmosphere is 101.4 kN.
Explanation:
To force is given by:
[tex]F = P*A[/tex] (1)
Where:
P: is the pressure = 14.7 lb/in²
A: is the area = 1 m²
By entering the above values into equation (1) we have:
[tex]F = P*A = 14.7 \frac{lb}{in^{2}}*\frac{4.45 N}{1 lb}*\frac{1550 in^{2}}{1 m^{2}}*1 m^{2} = 101.4 kN [/tex]
Therefore, the force on one square foot of the earth’s surface caused by the atmosphere is 101.4 kN.
I hope it helps you!
1.
Which is not a characteristic of a compound?
•has different properties from its component elements
•can be represented by a chernical formula
•different samples have different properties
•a pure substance made of two or more elements
Answer:
different sample have different properties is not a characteristics of a compound ,
Explanation:
because compound will always same properties no matter how quantity is
6. Which formula could you use according to the scenario? Five grams of substance occupy 3 cm3 of a flask. Om = du OD Ot= d
Om = du OD Ot= d?
Explanation:
One group approached their investigation by dropping a mass so it
fell vertically downward. They planned to measure the position of the
mass as it descended using a motion detector. They checked whether
the motion detector that they were using was sensitive enough to
capture the motion during the fall, and they were satisfied.
Given that they are measuring the motion (position, velocity, and
acceleration) of the mass, the students can only measure
gravitational potential energy and kinetic energy; any other form of
energy is undetectable. If they hope to see that energy is conserved
in this system, which of the following assumptions must be true (or
approximately true)?
Air Resistance is negligible
The initial vertical velocity of the mass is negligible.
Answer:
Air Resistance is negligible
Explanation:
If they hope to see that energy is conserved, then energy must not be gained or lost during the experiment. That is, loss due to air resistance must be negligible.
Answer:
air resistance negligible=true
Explanation:
Calculate the force applied (in newtons) if a pressure of 2000Pa is acting on an area of 3m2.
What is a unit vector?
A) a vector with all three directions or
dimensions (x,y and z or i, j, k) that are given
B) a vector with only one dimension
C) a vector that has an x and y components that
D) are equal in magnitude
a vector with a magnitude of one
Answer:
A unit vector is (D) a vector with a magnitude of one
Explanation:
Unit Vector Information:
A unit vector is a vector with a magnitude of one. Vectors of different magnitudes can be scaled off the unit vector. Also, they can be used in two, three, or more dimensions.
Other Answers:
A. a vector with all three directions or dimensions that are given
This is the definition of a 3D vector. This is a line segment in three-dimensional space running from point A (tail) to point B (head). Each vector has a magnitude (or length) and direction.
B. a vector with only one dimension
This is the definition of an one-dimensional vector. This type of vector has no dimension, but a number of components, therefore it behaves like a real number.
C. a vector that has an x and y components that are equal in magnitude
(Unsure, I believe this would be defined as an equal vector. Correct me if I'm wrong and I will edit it.)
I hope this helps!
What are the names of all of the valves in the
heart? Check all that apply
ventricular valve
aortic valve
atrium valve
carotid valve
mitral valve
pulmonary valve
tricuspid valve
Hope this helps:)
can u mark brainiest
Colette launches an air rocket in the upward, positive direction. It launches
with an initial velocity of 25.5 m/s. It accelerates in the downward, negative
direction at a rate of 9.81 m/s2. After 3.5 seconds, what is the magnitude of
the rocket's displacement?
A) 29 meters
B) 31 meters
C) –150 meters
D) 150 meters
Answer:
b
Explanation:
Answer:
The answer is A) 29 meters
Explanation:
I got this question right on the test! :)
A football is kicked with a speed of 18 m/s at an angle of 65° to the horizontal. How far does the football travel horizontally before it hits the ground?
The horizontal distance traveled by the football is determined as 25.33 m.
Horizontal distance traveled by the football
The horizontal distance traveled by the football is calculated as follows;
X = u²sin(2θ)/g
where;
u is the initial speedg is acceleration due to gravityX = (18² x sin(2 x 65))/9.8
X = 25.33 m
Thus, the horizontal distance traveled by the football is determined as 25.33 m.
Learn more about horizontal distance here: https://brainly.com/question/24784992
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2. (1) A piece of rubber is 50 cm long when a weight of
35 N hangs from it and is 85 cm long when a weight
of 70 N hangs from it. What is the spring constant
of this piece of rubber?
Answer
By F = -kx {-ve just indicating the sign of the force}
=>35 = k x (85-50) x 10^-2
=>k = 100 N/m
Again by F = -kx
Which of these best describes why your weight would be different on another celestial body?
A. Different celestial bodies have different gravitational pulls
B. The smaller the celestial body, the greater weight
C. The farther the celestial body from the sun, the more the gravitational pull
D. Weight is constant, so it would not change
Answer:
A
Explanation:
The answer is A due to the gravity is stronger the greater the mass but the less the mass is the weaker the gravity. In conclusion, the answer is A because the strength of gravity depends on the mass.
what does it mean to say energy is conserved
While studying bacterial cells, scientists measure the lengths of the cells in one colony. The chart shows their data. The scientists notice that one measurement stands out. How should the scientists best deal with this measurement? accept it as true and use 85 micrometers in the data when they find the average length accept it as true but say that it is the only cell that has ever been that long consider that there was an error during measuring and collect further data consider that it is possible but very unlikely for these bacterial cells to be so long
Answer:
Following are the solution to the given question:
Explanation:
Its best approach to this measurement ought to be to indicate that there was a mistake throughout the calculation, as well as the gathering of further details while researching cells for bacteria, directly measuring the cell length of a colony. This chart illustrates its data, which scientists have observed that there's still a measurement.
is -3 a solution to equation 3x -5 = 4+ 2x
Answer:
No!
Explanation:
The correct answer is x = 9.
If I push on the wall with 75 Newtons of force, the wall will push back with __
Answer: 0
Explanation:
75 newtons will push back canceling it out make it 0
If I push on the wall with 75 Newtons of force, the wall will push back with 75 Newtons of force.
What is force?Force is defined as a cause which is capable of changing the motion of an object. It can cause an object which has mass to change it's velocity. It is also simply a push or a pull . It has both magnitude as well as direction.Hence, it is a vector quantity.
It has SI units of Newton and is represented by'F'.Newton's second law states that force which acts on an object is equal to momentum which changes with time. If mass of object is constant, acceleration is directly proportional to net force acting on an object.
The concepts which related to force are thrust and torque .Thrust increases the velocity of an object and torque produces change in rotational speed of an object.
Learn more about force,here:
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Jason rides his bicycle for 3 hours at a speed to 40 km/h. What distance does he
travel? -
Answer:
120km
Explanation:
Calculate the gravitational potential energy of a 2 kg banana hanging 5
meters above the ground.
(Use 10 m/s2 for gravity)
Answer:
100 J
Explanation:
The potential energy is given by the formula ...
PE = mgh
= (2 kg)(10 m/s^2)(5 m) = 100 J
Thermal energy can not be transferred or transformed into other forms of energy.
O True
False
Answer:
I believe it is false I took the test
Answer:
false
Explanation:
7. Sketch a labeled history graph of a vibrating particle. Be sure to label the axis of the graph correctly, and point out
what qualities of the wave can be determined from the graph.
What is a material that can dissolve in another material called?
Slippery
Physical
Soluble
Insoluble
Answer:A material that can dissolve in another material called Soluble
Explanation:
Answer:
Option 3.
Soluble is the correct/best answer choice.
When 560,000 is written in scientific notation, what is the power of 10?
Answer: 5
Explanation: In scientific notation you must bring one number to left of the decimal point. Therefore it is 5.6 × 10^5. Therefore the power of 10 is 5.
The water cycle was described in the Scriptures long before modern scientists understood it.
True False
Answer:
False
Explanation:
Low humidity is typically associated with cold temperatures since cold air holds less water compared to warm air. While it is possible for indoor humidity to be as low as 10%, most people generally find humidity levels of about 40 to 45 percent comfortable.
10people comment on this please and pick a number
20020257 12/2/2020 11:02 am
No cheating you have to send this to 10 people girl or boy, even me & see what they want from you
1. I wanna marry u
2. Love
3. chocolate ️
4. I like u
5. Just friends
6. Best friends
7. Texting
8. I love u
9. Good Memories
10. I want money
11. Dance together
12. Watch movie
13. Share memories
14. Exchange clothes
15. A real relationship
16. A date
17. get drunk
18. Buy flowers
19. A long walk
20. friends with benefits
21. role play
22. one night stand
23. love bite
24. forever together
If you don't send this to 10 people in the next 10 mins u will have bad luck in .relationship in next 8 years. Your time starts now. pick onee
Answer:
3 chocolate
explanation
Answer:9 and 6
Explanation:
In addition to a reference point you also need distance and __________ to describe location
displacement
btw in not sure
which one?? please someone quick!
Answer:
i think its second law of motion.
Explanation:
Answer:
it’s the second law
Explanation:
ANSWER QUICK PLS
1. What is the distance between a 900 kg compact car and a 1600 kg pickup truck if the gravitational force between them is about 0.0001 N?
Answer:
what was the answer? Was it 0.98?
Answer:
it's 98
Explanation:
Please please help! I really need the answer!!
what are the names of the different ions when they are negative and positive charged?
I Need help asappp!!!
Answer: Inertia
Explanation: If it is multiple choice chose acceleration and inertia
What is meant by the components of a vector
What distance does a biker travel if he rides at a constant speed or 22 m/s for 45 seconds?
Answer:
it would be 990 m.
Explanation:
22 m/s x 45 seconds.