Answer: true
Explanation:
Answer:
true
Explanation:
Using lubricants such as oil or grease can reduce the friction between the surfaces
A 20-kilogram mass is traveling with a velocity of 3 m/s. What is the object's kinetic energy?
solution
Given
mass= 20kg
velocity =3m/s
K.E=?
K.E= ½mv²
½×20×3²
½×20×9
½×180
90 J
What is a good question for a Science Fair (7th grade advanced) also im an online student so nothing really physical something that can really explain thru pictures. I just want suggestions thank you.
The connections of many simple pieces in the brain is evidence of the:
O A. lobes of the brain
B. brain's complexity
C. function of neurons
D. cerebral cortex
Answer:
B. brain's complexity
Explanation:
Ape.x
Two teams of girls are having a hug of war and neither side is winning. Each of the four girls on the west team is pulling with a force of 250. N. Three of the four girls on the east team are pulling with a force of 260 N each. With what force is the fourth girl on the east pulling.
Answer:
220N
Explanation:
Given that the first time has 4 girls
each girl pull at 250N, therefore the total force
250X4= 1000N
For the second team, the three girls out of the four pulls at 260N each,
let the fourth girl pulls at xN
the total force is 3X260+x
=780+x
we know that the total force on the west must equal the total force on the east
so
1000=780+x
solving for x we have
x=1000-780
x=220N
Therefore the fourth girl on the second team pulls at 220N
HELP ME PLEASE. i need to turn this in by tomorrow, also pls use the words above^ thank you i’ll mark u the brainliest.
Answer:
the corrdct answer is core
A book with a mass of 1kg is dropped from a height of 3m . What is the potential energy of th book when it reaches the floor?
Answer:
30 J
Explanation:
height = 3 m
mass = 1kg
acceleration due to gravity = 10m/s²
Potential Energy = mass× gravity × height
= 1kg ×10m/s²× 3m
= 30 J
what caused earths continents to drift apart?
Answer:
bada bop boop pow
Explanation:
a meteor Falls towards Earth's surface given that the acceleration due to gravity is 9.8 m/s^2 what is the meteors potential energy if it has a mass of 20kg at an altitude of 500
Answer: It’s 98,000
Explanation: Just did it on apex
Diego hypothesizes that the Earth wobbles on its axis in a pattern that is repeated every 20,000 years.
Which of the following ways would be the best way to test Diego's hypothesis?
A.
conduct a controlled experiment
B.
make observations in nature
C.
observe the movement of other planets
D.
make a model
Answer:
its d
Explanation:
i did itand it was d
A scientist measures the growth of a bamboo plant over time. The table
below shows the results.
Time (hours)
Height (cm)
10
1.2
20
1.5
30
1.8
40
2.1
50
2.4
60
2.8
How tall was the bamboo plant after 20 hours?
Answer:the answer is 1.5
Explanation: I know bc I just had that question on a test.
Which type of intelligence (analytic, creative, practical, verbal, mathematical, spatial, bodily-kinesthetic, musical, interpersonal, interpersonal, naturalist, or existentialist) does this individual has.
Professor Wooddro teaches an Introduction to Philosophy at the college. He loves to talk with students about the meaning of life and death and enjoys struggling with life's most challenging questions.
Answer:
verbal, IntrapersonalExplanation:
Remember, we are told that "Professor Wooddro teaches an Introduction to Philosophy at the college, and loves to talk about the meaning of life and death" which would require having verbal intelligence (the ability to understand and relate information using words).
Intrapersonal intelligence is also reflected by Professor Wooddro as we are told he "enjoys struggling with life's most challenging questions", which shows his knowledge of his own strengths or weaknesses.
After she’s finished cooking Emily measures the mass of the dough balls. According to the law of conservation of mass, the mass of the dough bars should be equal to
Answer:
The weight of the dough bars after being cooked.
A 3,000kg car rests on rough horizontal ground. A rope is
attached to the car and is pulled with a force of 11,000N to the
left. As a result, the car accelerates at 3 m/s2. The coefficient of
sliding friction (1) between the car and the ground is?
Answer:
0.07
Explanation:
Huge Brain
Coefficient of friction between the car and the ground will be 0.07.
Given in the question,
Mass of the car 'm' = 3000 kgForce 'F' by which the car is pulled = 11000 NAcceleration 'a' by which the car gets accelerated = 3 meters per second²Force applied on the car by which the car is accelerated,
F = ma
= 3000 × 3
= 9000 N
Force [tex]F_k[/tex] to overcome the friction = 11000 - 9000
= 2000 N
Gravitational force F' on the car = mg
= 3000(9.8)
= 29400 N
Since, [tex]\mu_k=\frac{F_k}{F'}[/tex]
[tex]=\frac{2000}{29400}[/tex]
[tex]=0.068[/tex]
≈ 0.07
Therefore, coefficient of friction between the car and the ground will be 0.07.
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HELP what is the answer to this question?
Answer:
b
Explanation:
BRAINLIEST WILL BE GIVEN
Answer:
Mac’s Speed = 2.5 m/s
Tosh’s Speed = 4 m/s
Tosh moves 1.5 m/s faster than Mac.
Explanation:
Tosh starts from an initial position of 12m and in a span of 3 seconds, (1.00 seconds to 4.00 seconds) he moves 12 meters.
So his speed is distance / time
s = 12 / 3
s = 4 m/s
Mac starts from an initial position of 2m and in a span of 4 seconds, he traveled 10m (2.00m to 12.00m).
Speed = Distance / time
s = 10 / 4
s = 2.5 m/s
What is an important property about the wires of a circuit?
Answer:
That they conect the curcut and porvide electricity.
Explanation:
Answer:the wires must be conducted so that they allow for electrons to flow through the material
Explanation:
Given 1 inch ≡ 2.54 cm and 1 foot ≡
12 inches, how many square centimeters are
in 3.22 ft2
?
Answer:
2991.47 [cm^2]
Explanation:
To solve this problem we must perform a dimensional analysis and use the corresponding conversion values:
[tex]3.22[ft^{2}]*\frac{12^{2}in^{2} }{1^{2}ft^{2}} *\frac{2.54^{2}cm^{2} }{1^{2}in^{2} } \\2991.47[cm^{2}][/tex]
a student pushes a book with a force of 5 N to the east.which statement
describes the reaction force?
Answer:
5N westward, acting on the student
Explanation:
Answer: 5N westward, acting on the student
Explanation:
Using only one management style with all people is the most effective leadership technique for any organization.
Answer:
False
Explanation:
More than one management style with all people is the most effective leadership technique for any organization. So, the given statement is False.
What is Leadership technique?Leadership styles are defined as those adopted by company leaders to increase efficiency, satisfaction, growth and advancement in all positions in the organization. It requires a different style in different situations and each leader needs to know when to show a special behavior.
These strategies define every leader's personal leadership style. Some effective leadership Techniques are as follows:
Understanding the objectives clearlyGet to know the teamAlways be a learnerListen.Learn to delegate.Thus, more than one management style with all people is the most effective leadership technique for any organization. So, the given statement is False.
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Lincoln can run at a speed of 3 m/s. How long would it take him to run 200 meters?
Answer:Answer is 66.66666666666667
Explanation:all you have to do is divide 200/3
Answer:
66 seconds
Explanation:
time=distance/speed
200/3=66.6
what happens all by itself because the nucleus is unstable
The force of gravity depends on the mass of objects and the distance between them. TRUE OR FALSE?
The force of gravity depends on the mass of objects and the distance between them. This is true statement.
What is force?Physics defines force as the push or pull that modifies the velocity of a massed object.
The ability to change a body's resting or moving condition is referred to as an external force. There is a magnitude and a direction to it.
You may determine the Force using a spring balance. The SI's measure of force is the Newton.
The force of gravity between two objects is directly proportional to the mass of the object and inversely proportional to the square of the distance between them.
Hence, the force of gravity depends on the mass of objects and the distance between them. This is true statement.
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Tech A says that some electric actuators are positioned by an A/C ECU which checks the air flow with sensors. Tech B says that electric actuators are positioned by an A/C ECU and some actuators have a potentiometer to tell the A/C ECU the position of the door. Who is correct?
Answer:
Tech B
Explanation:
The control of electric actuators may be through through a two-wire or a five-wire circuit through the driver circuit by bidirectionally controlling via the motor wire polarity. The door position is determined by counting the actuator commutator pulses by the control module in the actuator with 2-wire, while the actuator with 5-wire uses potentiometer feedback.
The A/C ECU is the Air Condition Engine Control Unit.
You were in a tog-o-war contest which your team won. Write a letter to your friend that tells why your team won the contest. Remember to include unbalanced forces and net force.
Answer:
Imagine a tug-of-war between you and one
friend. If you are stronger, you apply more
force to the rope. You pull your friend across
the line, and you are the winner! If your friend
is stronger, he might pull you across the line.
Sometimes the forces are equal. Neither you
nor your friend moves across the line. The two
forces are balanced.
3
We say that the net force on an object is the combination of all the forces acting on it. To find the net force of
forces that are acting in the same direction, add them together. For example, if you pull on a box with a force of 25
newtons (N) while your friend pushes the box (in the same direction you are pulling) with a force of 30 N, the net
force applied to the box in that direction is 55 newtons.
4
To find the net force of forces that are acting in opposite directions, subtract the smaller force from the larger
one. If you are pulling on a tug-of-war rope with a force of 40 N, and your friend is pulling with a force of 35 N in
the opposite direction, the net force on the rope is 5 newtons in your direction. You win!
Explanation:
My team won the thug of war contest because we exerted a greater net force than the opponent team.
The letter requested is an informal letter. The letter opens with a heading which contains the writers' address and date.
Universal Model School,
90 Aba Owerri Road,
Aba.
October 22, 2021.
Next is the salutation, for example;
Dear Chris,
Next is the body of the letter, you can begin the first paragraph by asking after his welfare and that of his family and studies.
In the second paragraph, you can let him know that the reason for motion is the action of unbalanced forces. In the thug of war game, each side exerts a force. The team that wins is the team that exerts a greater net force causing the cord to move towards their own side.
The conclusion should have such words as;
Yours Truly,
Your name
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The bowler threw the 9kg bowling ball with a force
of 90N. What was the bowling ball's acceleration?
Answer:
10 m/s²
Explanation:
9kg= mass 90N=force acceleration=?
the equation is;
Acceleration (m/s²)= force(N) ÷ mass(kg)
What does Newton's third law describe?
A. Equal and opposite forces
B. How the amount of mass influences the amount of force needed
to move an object
C. The tendency of moving objects to stay in motion
D. The attractive force between two objects due to their masses
Goal: Use dimensional analysis to solve conversion problems. 1. Observe: In the question, you are asked to convert kilometers to centimeters. To do this, first you will convert kilometers to meters. Drag the 1000 meters/1 kilometer tile down. A. What do you notice? __________________________________________________ B. Because kilometers appear in the numerator of one term and in the denominator of another, they cancel, or disappear. The process of converting units by canceling is called dimensional analysis. How many meters are in 0.828 kilometers? ________________________________ C. A meter is a much shorter unit of measurement than a kilometer. Based on this fact, does your answer to B make sense? ______________________________________
Answer:
A. The kilometers unit is cancelled out and the result shown is 828 meters.
B. 828 meters are found in 0.828 Kilometers
C. Yes
Explanation:
A. When the 1000 meters/1 kilometer tile is dragged down, the kilometers unit is cancelled out and the value 828 meters appears.
This is because the kilometers appear in the numerator of one term and in the denominator of another, they cancel, or disappear. The process of converting units by canceling is called dimensional analysis.
B. 0.828 Kilometers * 1000 meters/1 kilometer = 828 meters
Therefore, there are 828 meters in 0.828 kilometers.
C. A meter is a much shorter unit of measurement than a kilometer. Based on this fact, it does make sense that 0.828 Kilometers which is less than 1 kilometer is equal to 828 meters.
(A) The process of converting units by canceling is called dimensional analysis.
(B) There are 828 meters in 0.828 kilometers.
(C) It does make sense that 0.828 Kilometers which is less than 1 kilometer is equal to 828 meters.
The given problem is based on some basic fundamentals and applications of dimensional analysis. So as per the given problem, each subpart says,
A.
When the 1000 meters/1 kilometer tile is dragged down, the kilometers unit is cancelled out and the value 828 meters appears.
This is because the kilometers appear in the numerator of one term and in the denominator of another, they cancel, or disappear. The process of converting units by canceling is called dimensional analysis.
Thus, we can conclude that the process of converting units by canceling is called dimensional analysis.
B.
Converting the given value of kilometers into the meters as,
0.828 Kilometers * 1000 meters/1 kilometer = 828 meters
Thus, we can conclude that there are 828 meters in 0.828 kilometers.
C.
A meter is a much shorter unit of measurement than a kilometer. Based on this fact, it does make sense that 0.828 Kilometers which is less than 1 kilometer is equal to 828 meters.
Thus, we can conclude that it does make sense that 0.828 Kilometers which is less than 1 kilometer is equal to 828 meters.
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Which ballet move is most similar to a track runner jumping over hurdles?
a Balancing on one leg
b Complex footwork patterns
c Straight leg dance kick
d Split leap
18. What do you call a change in state from a liquid to a gas?
Answer:
evaporation
Explanation:
how many apples are in 29 trees if each tree has 45 apples?
Answer:
1305 I think but not sure