Answer:
3.0 would be it
Explanation:
Because if you think bout it the 5.0 negative 2.0 is 3.0
Which of the following does not describe when something has acceleration?
Changes in displacement
Changes in speed
Changes in direction
Changes in speed and direction
Answer:
changes in displacement
Explanation:
Within a few sentences, explain the difference between meiosis and mitosis.
what happens to the brightness of the bulb when the resistor is increased?
Answer: As the variable resistance increases its resistance, the current which flow through the lamp will decrease and therefore its brightness decreases. ... If the resistors are very large, they have no impact and the lamps will be the same brightness.
Explanation:
Answer:
The intensity or brightness of the bulb increases as more dry cell is added in the circuit.
Explanation:
Hope it helps :)
hii please help i’ll give brainliest if you give a correct answer please
Answer:
your body is exerting a force on the chair and nothing is happening
Explanation:
Answer:
the second one
Explanation:
as you sit down you are using gravitational force which is pulling straight down but as you sit down there are currently no forces in motion while sitting
Help me plz. I'll mark brainiest
Answer:
I'm pretty sure question one is D. Anatomy and physiology
Explanation:
normally you'd have to learn about Physiology before you move on to therapy from my knowledge...
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9. Peter drove 57 miles down the coastline in 3 hours. What was his
average speed? (6.8C)
O 171 mi/h
O 50 mi/h
O .05 mi/h
O 19 mi/h
A car advertisement states that a certain car can selerate from rest to 20 m/s in 7 seconds. Find the car's average acceleration
Answer:
2.86m/s²
Explanation:
[tex]\boxed{average \: acceleration = \frac{change \: in \: velocity}{time} }[/tex]
Car's average acceleration
[tex] = \frac{20 - 0}{7} \\ = 2.86 \: m/ {s}^{2} \: (3 \: s.f.)[/tex]
The reason why the change in velocity over time is average acceleration is because we are finding the total difference in velocity and dividing it against the total duration. This means that the acceleration of the car can vary throughout the 7 seconds (may not be a constant acceleration) but on average, the car's acceleration 2.86m/s², to 3 significant figures.
Change in velocity
= v -v₀
= final velocity -initial velocity
Since the car is at rest at the beginning, the initial velocity (v₀) is 0m/s.
Answer:
Given :-Acceleration = 20 m/sTime = 7 secTo Find :-Average acceleration
Solution :-As we are already knowing that
[tex] \sf Acceleration_{Avg} [/tex] = TA/T
TA = Total acceleration
T = Time
A = 20/7
A = 2.85 m/s²
isss in the pic pls help
Answer:
reacts with metals: acid
reacts with nonmetal: base
taste sour: acid
can cause burns: both
conduct electricity: both
taste bitter: base
Frying an egg conduction convention radiation
Answer:
frying an egg is conduction because the pan is touching the stove and the pan is touching the eggs
Explanation:
how many molecules is in this formula 3H2O
Answer: There are 9 molecules.
Explanation: 3H2O has 6 hydrogen atoms and 3 oxygen atoms. Heres a diagram.
HHO + HHO + HHO = 3H2O
Vivian went on a bicycle trip through Germany with her family. One afternoon, she rode her bicycle along a long flat road at a constant speed for 24 kilometers (km). The ride took her 1.2 hours (h). At what speed did she ride her bicycle?
Answer:
20km/h
Explanation:
Given parameters:
Distance moved = 24km
Time = 1.2hrs
Unknown:
Speed of her ride = ?
Solution:
Speed is the distance covered per unit of time.
So;
Speed = [tex]\frac{distance}{time}[/tex]
Speed = [tex]\frac{24}{1.2}[/tex] = 20km/h
Explain the centripetal force or Newton's second law...
Answer: a centripetal force is toward the center of curvature, the same as the direction of centripetal acceleration. According to Newton's second law of motion, net force is mass times acceleration: net . For uniform circular motion, the acceleration is the centripetal acceleration
Explanation:
Centripetal force is the force which causes the change in direction of velocity towards the center of the circular motion of an object.
What is Centripetal Force?Centripetal force is any kind of force which causes a change in the direction of velocity of an object which is moving towards the center of the circular motion. The component of this force which is perpendicular to the velocity of the object is the part which results in the centripetal force.
The force of gravity which acts up on a satellite in the orbit is an example of a centripetal force. The friction of the tires of a car which makes a turn that is similarly provides centripetal force on the car.
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What is the net force on this box?
100 N
80N
90 N
110
100 N
Answer:
where is the box? how can we answer if your question is lack given? how do we know what box is it your talking about
Use what you have learned in the reading to answer the following question. The point of a compass needle points to Earth’s north pole. The point in the compass needle has–
~the same polarity as Earth's north pole.
~the opposite polarity from Earth’s north pole.
~no polarity.
~unlimited polarity.
The point in the compass needle has the opposite polarity from Earth’s north pole. The correct option is B.
What is a compass needle?The compass needle A magnetized pointer within a compass that can freely align with the Earth's magnetic field.
The magnetic needle is the most important part of the compass. It swings around the compass as you move, but the red end always points north and the white (or sometimes black) end always points south.
If you mean the geographical North Pole, the needle would point south because that is the only way to get there; more specifically, it would point south along the 112.4 degrees west longitude meridian towards the magnetic north pole at 82 degrees north, where compasses point.
Thus, the correct option is B.
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What is the difference between a chemical change and a physical change? *
A. There is no difference.
B. A chemical change CAN NOT be reversed. A physical change CAN be reversed.
C. A physical change CAN NOT be reversed. A chemical change CAN be reversed.
D. They can both be reversed.
Answer:
I do belive that it is B hrs cn I an gn
Which of the following best demonstrates Newton's Third Law?
Question 3 options:
The harder you kick a soccer ball, the faster it accelerates
An object sitting on the ground will stay there until somebody or something pushes it
Wearing a seatbelt prevents you from continuing to move when the car has stopped
When you walk your foot pushes down on the ground while the ground pushes back on your foot
Answer:
when you walk your foot pushes down on the ground, while the ground pushes back on your foot
Explanation:
it was another brainly question, Goodluck :)
What is kinetic energy
Answer:
Kinetic energy, form of energy that an object or a particle has by reason of its motion. ... Kinetic energy is a property of a moving object or particle and depends not only on its motion but also on its mass.
Credits to britannica.com
Explanation:
Hope this helps
Kinetic energy of an object is the energy that it possesses due to its motion.
Please help!!!
What do all of the inventors discussed in this lesson have in common?
All of the inventors can be characterized as problem-solvers.
O All of the inventors created new things as children.
All of the inventors used engineering principles to create new things.
O All of the inventors needed mathematics principles to formulate solutions.
Answer:
All of the inventors can be characterized as problem-solvers.
Explanation:
Took the practice
Answer:
All of the inventors can be characterized as problem-solvers.
Explanation:
What is the weight on Earth of a girl with a mass of 32 kg (F = ma)?
Answer:
~ 314 N
Explanation:
F = ma
= 32 ( 9.81) = ~ 314 N
Example of electrical to sound? And explain how the energy is changing forms?
microphone for example
Which is the main purpose of an experimental conclusion?
O A. to describe the steps in an experiment
O B. to state whether a hypothesis has or has not been
supported
O C. to criticize the observations that led to the investigation
O D. to explain how data was collected
Answer:
the Answer is B
because the purpose of experimental conclusion it is to prove rather is a right or wrong is a hypothesis is right or wrong
What happens to kinetic energy when potential energy increases?
Please explain in detail and step by step
Explanation:
Irfan should take care that the mirror has to be 1/2 of his height and it is
there is not any other specification to be looked at and irfan's height is 180 cm
During the course of a trajectory, is the vertical component of the velocity a constant or a changing value? ___________________ If it is a changing value, then describe its changes (increasing, decreasing, or ...)
Answer:
1) Changing value
2) The velocity is decreasing for upward motion and increasing for downward motion due to gravitational force
Explanation:
1) A trajectory is the motion of an object which is being acted upon by specified forces. The flight path of an object in projectile motion is its trajectory
During the course of a trajectory, the vertical component of the velocity, [tex]v_y[/tex], is a changing value
2) The vertical component of the velocity first decreases, during the upward motion, according to the following equation;
[tex]v_y[/tex] = [tex]u_y[/tex] - g·t
Where;
[tex]v_y[/tex] = The vertical component of the velocity after a given time, t
[tex]u_y[/tex] = The initial vertical velocity
t = The time of motion of the trajectory
g = The acceleration due to gravity ≈ 9.8 m/s²
When the vertical velocity of the object decreases to zero, which is the point at which the object reaches the maximum height of its motion, the direction of the vertical motion of the object reverses, and object begins to accelerate and increase its velocity downwards according to the following equation;
[tex]v_y[/tex] = [tex]u_y[/tex] + g·t
Therefore, the velocity of the object is decreasing on its way up, and then increasing on its way down.
Select the correct sequence of steps for lighting a Bunsen burner?
A. Apply the spark above the barrel of the Bunsen burner.
B. Open the gas adjustment at the base of the Bunsen burner.
C. Connect the burner hose to the gas outlet.
D. Open the gas valve on the gas outlet
D. C, A, B
C, A, D, B
C, D, A, B
C, D, B, A
Answer:
CDBA
Explanation:
Just did it on Study island
The correct sequence of steps for lighting a Bunsen burner would be C, D, B, A, therefore the correct answer is option D.
What is thermal energy?Thermal energy sometimes referred to as heat energy, may be described as the type of energy in which heat is transmitted from one body to another body as a result of their molecular motions.
The following would be the proper procedure for lighting a Bunsen burner:
Link the gas outlet and the burner hose.
The gas output valve should be opened.
Open the Bunsen burner's base-mounted gas adjustment valve.
The Bunsen burner's barrel should be covered with the spark.
Thus, the right response is option D since the proper stages to ignite a Bunsen burner are C, D, B, and A.
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On the way home from school, you notice the speedometer on the car is at 5,200 miles. When you get home, the speedometer reads 5,208 miles. With only this information what value could you calculate?
O Velocity
O Displacement
O Acceleration
O Distance
Answer:
O Distance
Explanation:
With the given information, it is possible to find the distance of the car has traveled on the home from school.
This is possible because distance is the length of path a body covers.
From the given values:
Distance = 5208 - 5200 = 8miles
It is not possible to find the displacement because no direction was given.
Also velocity is not possible since the time frame of travel was not state.
If two forces are acting on an object , one is 25N west, and the other is 50N east. Calculate the net force.
Answer:
Explanation:
Since the forces are only in the x-direction, you could just add the two forces. The West is to the left, so it would be -25N with the negative sign indicating direction. The East is to the right, so that would be +50N.
50 + (-25) = 25N to the right or the positive i-hat direction
An employee was watching Jessica, an IT employee, typing in many different confusing terms. Jessica explained that she needed to fix the code and test a couple of programs before she could train the employee on how to use the software. Which IT career would be responsible for these tasks?
Network Systems
Programming and Software Development
Information Support and Services
Interactive Media
Answer:
B.) Programming and Software
Explanation:
Answer on Edge
Answer:
its B
Explanation:
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in what way is Speed related to Kinetic Energy?
Answer:
Explanation:
In order to find kinetic energy, you need information about the velocity. Speed is the magnitude of the velocity.
Kinetic energy is 1/2mv^2
m being mass
v being velocity
The kinetic energy of an object is directly proportional to the speed of the object. If we double the speed of the object then the kinetic energy of the object will increase by a factor of four or four times.
What is Kinetic energy?Kinetic energy is the energy which is present in an object which has because of its motion. If we want to accelerate an object, then we must apply the force of some magnitude. Applying a force, requires us to do some work. After the work has been done, then the energy has been transferred to the object, and the object will be moving with a new constant speed.
Kinetic energy is directly proportional to the mass of the object and to the square of its speed or velocity:
K.E. = 1/2 m × v²
If the mass has the units of kilograms and the velocity of meters per second, then the kinetic energy has units of kilograms-meters squared per second squared.
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