Answer:
meters per second squared
m/s^2
Explanation:
Hope this helps! :3
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Answer:
Acceleration is measured in m/s2 (meters per second squared)
Explanation:
A company has been in business for 40 years. It has tens of thousands of customer addresses in three different computer systems and written on paper in filing cabinets. Which of these people would be MOST helpful in organizing and securing this information?
A.
database administrator
B.
operations research analyst
C.
computer network support specialist
D.
computer user support specialist
The person in charge of information management is the database administrator.
What is a database?The term database refers to the arranging of the data that concerns clients in relevant entry point such as computers and file cabinets. This is the way by which companies are bale to keep track of their customers.
The person that is most helpful in the management of the tens of thousands of customer addresses in three different computer systems and written on paper in filing cabinets is the database administrator.
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Which equation can be used to solve for acceleration?
t=v/a
vf=at-vi
a=d/t
v=a/t
Answer:
t=v/a
Explanation:
Acceleration is defined as the rate of change of velocity with time. It is mathematically expressed as;
Acceleration = [tex]\frac{Final velocity - Initial velocity}{time}[/tex]
The change in velocity per unit of time is the acceleration
From this equation;
time = [tex]\frac{change in velocity }{acceleration}[/tex]
This expression is analogous to the expression chosen.
Something that causes significant personal stress, appears strange to others,
and
is a psychologícal disorder.
O A. is a split from reality
OB. impairs one's ability to function
OC. includes hallucinations
OD. happens across cultures
Answer:
Impairs one's ability to function
Explanation:
Answer:
Impairs one's ability to functionExplanation:
I just took the test
How do animals affect the amount of carbon earth’s atmosphere
Answer:
Animals cerate Carbon Dioxide through the process of respiration.
All animals exhale carbon dioxide out through respiration and increase the level of carbon dioxide in the atmosphere and this is intaken by the plants for photosynthesis.
What is carbon cycle ?Carbon cycle is the geological process that balance the amount of carbon dioxide in the atmosphere and biosphere. Carbon dioxide is an essential gas that maintains the living condition on earth.
All animals inhales oxygen and exhales carbon dioxide out. This carbon dioxide is used by plants to carry photosynthesis in plants. Plants absorb this carbon dioxide and combine with water forming oxygen gas and glucose.
This process repeats cyclically and the level of oxygen and carbon in the atmosphere gets balanced. Therefore, animals have a significant role in carbon dioxide cycle and oxygen cycle.
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7. A 1.5 N force is applied to an air hockey puck with a mass of 0.10 kg. With what
acceleration does the puck move across the air table?
Answer:
15m/s²
Explanation:
According to Newton's second law;
Force = mass * acceleration
Given
Force = 1.5N
mass = 0.10kg
Required
acceleration
Substitute into the expression;
1.5 = 0.1a
a = 1.5/0.1
a = 15m/s²
Hence the acceleration that the puck move across the air table is 15m/s²
A 250 kg cart is at the top of a hill that is 32 m high, what is its potential energy?
Answer:
80,000 JExplanation:
The potential energy of a body can be found by using the formula
PE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 10 m/s²
From the question we have
PE = 250 × 10 × 32
We have the final answer as
80,000 JHope this helps you
A iron crowbar weighing 85 N is lying on the ground. What force is required to lift one end of it?
Answer:
F L = W * L/2
F = W / 2 = 42.5 N
The crowbar is uniform and can be replaced by a point mass of 85 N at distance of L/2 and the applied force is at a distance of L
Newton's laws of motion
Answer:second law
Acceleration of an object depends on the mass of the object and the amount of force applied
A student jumps off of a cliff into a river 25.9 m below. If the student landed 20.7 m horizontally away from where they jumped how much time was the student airborne?
what is motion and explain also
Answer:
the action or process of moving or being moved.
Explanation:
In physics, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time.
PLZ HELP ITS A TIMED TEST!!!!!!!!!!!!!!!!
Which of the following construction tools relies on a lever to reduce the amount of effort needed to complete a task?
Question 12 options:
Image #1 the Crane
Image #2 Crow bar
Image #3 Nail
what vehicle component transfers engine torque to the axles allowing the wheels on the same axle to turn at different speeds
Differentials are the components of a car that transfer engine torque to the axles allowing the wheels on the same axle to turn at different speeds.
There are two differentials in a car. The first one is located on the rare wheels and the second one is located on the front wheels.
The purpose of differentials is to allow the wheels to turn at different speeds required when the car is making a turn. The differentials send the torque from the transmission to the drive wheels.
During the turn, the differentials allow the front and rare wheels to turn at different speeds.
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a pitcher throws a .015 kg baseball from rest to a final velocity of 45. what is the magnitude of the change in momentum of the baseball
Answer:
0.675 kg m/s
Explanation:
Momentum = mass x velocity
= 0.015 x 45 = 0.675 kg m/s
P.S. I'm not sure of this answer, so it might be a good idea to check this with some other sources.
Change in momentum = 0.675 kg m/s
What is momentum ?
Momentum is a property of a moving body that the body has by virtue of its mass and motion and that is equal to the product of the body's mass and velocity
change in momentum = final momentum - initial momentum
final momentum = m*v = 0.015 * 45 = 0.675 kg m/s
initial momentum = m* v = 0.015 * 0 = 0
change in momentum = 0.675 kg m/s
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At extreme position, velocity is zero but acceleration is maximum in SHM.how can you theoretically explain it?
At extreme position, velocity is zero but acceleration is maximum in Simple Harmonic motion because of maximum displacement of pendulum.
Why acceleration is maximum when velocity is zero in SHM?At extreme position, velocity is zero but acceleration is maximum in Simple Harmonic motion because at extreme points the motion of the pendulum is at zero which means that velocity is zero but the pendulum attains maximum displacement. Acceleration is maximum when it gets the extreme position because the displacement is maximum at extreme position. If the velocity of the simple harmonic motion is maximum, the acceleration must be equal to zero and we know that the acceleration is equal to zero only when the particle or object is at initial position.
So we can conclude that at extreme position, velocity is zero but acceleration is maximum in Simple Harmonic motion because of maximum displacement of pendulum.
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1. If you throw a ball into the air, the Earth's gravity will cause the ball to
Explanation:
fall at a faster velocity than what it was thrown! Hope this helps!
A spaceship of mass 2.40x10⁶kg is to be accelerated to a speed of 0.700 c. (a) What minimum amount of energy does this acceleration require from the spaceship's fuel, assuming perfect efficiency?
The minimum energy required is 3.02 x 10²³ joule.
We need to know about relativistic energy to solve this problem. The rest energy of the object can be determined by
Eo = m₀ . c²
where Eo is rest energy, m₀ is rest mass and c is the speed of light (3 x 10⁸ m/s).
The total energy of object can be described as
E = Eo / √(1 - v²/c²)
where E is total energy, v is the object speed.
From the question above, we know that :
m₀ = 2.4 x 10⁶ kg
c = 3 x 10⁸ m/s
v = 0.7c
Find the rest energy
Eo = m₀ . c²
Eo = 2.4 x 10⁶ . (3 x 10⁸)²
Eo = 2.16 x 10²³ joule
Determine the total energy
E = Eo / √(1 - v²/c²)
E = 2.16 x 10²³ / √(1 - (0.7c)²/c²)
E = 2.16 x 10²³ / 0.71
E = 3.02 x 10²³ joule
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Nuclear fusion requires high temperatures and pressures in order to bring the nuclei close to each other.
This is because all nuclei have a __________ charge. What word completes the sentence?
Answer:
The answer is positive.
Explanation:
In a middle of an atom, nucleus, contain neutrons (neutral charge) and protons (positive charge) so it will become positively charge nucleus.
Question 7 (2 points)
Which statement accurately describes the charge of the nucleus of an atom? (2 points)
O a The nucleus can be either positively charged or neutral.
Ob
The nucleus never has an electrical charge.
O c
The nucleus always has a positive charge.
Od
The charge of a nucleus can change from positive to negative.
The nucleus of an atom will have a positive charge due to the existence of protons, which are positively charged subatomic particles.
Protons and neutrons are present in an atom's nucleus. We are aware that a proton has a charge of + 1 and a neutron has a charge of 0 (or no charge). As a result, the atom's nucleus will always be positively charged. A nucleus is a name for the dense area in the middle of an atom. Because there are positively charged subatomic particles present, the nucleus usually has a positive charge. The subatomic particles, which are present in atoms but far smaller than atoms, are there. Protons, neutrons, and electrons are the three primary subatomic particles found in matter. An atom's nucleus contains protons and neutrons, while its outermost nucleus contains electrons. Neutrons are subatomic particles with a charge of zero, whereas protons are positively charged.
Therefore, the nucleus of an atom will always have a positive charge. Consequently, an atom's nucleus has a positive charge because of the presence of protons.
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2.
What can you infer by looking at the electromagnetic spectrum (see image)? please get it right :(
A 500N car is pulled up to 20m plant to a flat from 5m above the ground by an effort of 150N parallel to the plank what is the VR??who can answer!!!!
Answer:
4Explanation:
VR = Velocity ratio = Distance moved by effort/Distance moved by load
Given:
Distance moved by effort = 20m
Distance moved by Load = 5m
VR = 20/5
VR = 4
Hence the velocity ratio of the car is 4
1a. for the free body diagram below, are the forces balanced or unbalanced?
Answer:
i think its unbalance because one side has 25 newtons and the other is 20 newtons there not the same
Every form of matter has two kinds of properties - What are they?
What is the difference between chemical and physical properties?
Why is melting point a physical property?
this is urgent
Answer:
1-physical properties, and chemical properties.
2-The physical properties of matter are those characteristics that can be measured without altering the atomic structure, while the chemical properties of matter are those.
3-For the change of state to occur, the temperature must be constant. The melting point is an intensive physical property of matter; this means that it is not linked to the amount of substance or the size of the body.
A Scientist was studying cockroach movement through a small passage. The scientist attached sandpaper to the inside surfaces of the passage. Which variable was the scientist most likely trying to investigate?
A. weight
B. friction
C. temperature
D. energy transfer
Answer:
b
Explanation:
the cockroach was rubbing up against something
When you cook a steak, what kind of energy do you increase in the steak?
O A. Sound energy
OB. Thermal energy
O C. Nuclear energy
O D. Elastic energy
Answer:
B im pretty sure.
Explanation:
Which do you prefer to be healthy first? People, community or enviroment? Support you answer.
The environment because maintaining a healthy environment is central to increasing quality of life and years of healthy life.
Explanation:
Which element is located in period 3 of the periodic table?
A. He
B. K
C. C
D. Al
Answer:
From the given options, the option (D) is correct. Because Al is the aluminium which is located in period 3 of the periodic table.
Explanation:
We know that the 3rd period contains 8 elements which are as follows:
sodiummagnesiumaluminiumsiliconphosphorussulfurchlorine, and argonThe sodium and magnesium, the first 2 elements, are members of the s-block of the periodic table, while the rest of the members are the elements of the p-block.
Thus, from the given options, the option (D) is correct. Because Al is the aluminium which is located in period 3 of the periodic table.
When you slide a box across the floor what force must you push to be stronger than
A) support force
B) friction force
C) gravity
D) air resistance
Answer:
B) Friction force
Explanation:
if the object is heavy then it will need more force to move it unlike a tennis ball for example.
which is a possible sequence in the life cycle of a massive star?(1 point) planetary nebula, super red giant, protostar, supernova, star, black hole planetary nebula, super red giant, protostar, supernova, star, black hole nebula, protostar, star, super red giant, supernova, neutron star nebula, protostar, star, super red giant, supernova, neutron star super red giant, protostar, nebula, star, neutron star, supernova super red giant, protostar, nebula, star, neutron star, supernova supernova, star, black hole, planetary nebula, super red giant, protostar
The possible sequence in the life cycle of a massive star is protostar, star, super red giant, planetary nebula, supernova, black hole.
What is supernova?A supernova is the enormous, dazzling explosion of a star. Supernovae or supernovas are the plural forms of its abbreviation, SN or SNe. This brief astronomical event occurs either in the latter stages of the formation of a large star or when a white dwarf is set off into uncontrolled nuclear fusion. The original object, referred to as the progenitor, either falls into a neutron star or a black hole, or entirely disintegrates. Before fading over the course of several weeks or months, the optical luminosity of a supernova can reach a peak that is similar to the luminosity of an entire galaxy. The latest supernova in the Milky Way to be directly observed was Kepler's Supernova in 1604, however more recent supernova remnants have been found.
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4 Generators are used to convert chemical energy into electrical energy. One company
that designs generators claims that their newest design can convert 1,000 joules of
chemical energy into 1,200 joules of electrical energy. What conclusion can you draw
about this company's design?
A No conclusion can be drawn without more information.
B It has a very good and realistic efficiency.
C It is impossible to convert chemical energy into electrical energy.
D It is impossible to create more energy than was input.
Answer:
fg
Explanation:
bbjtvnjj
Which statement compares the attractive forces that hold particles together?