Answer:
The light from a light bulb
Explanation:
The energy in a ball as it is falling is the right example of mechanical energy. Mechanical energy is the sum of kinetic and potential energy.
What is mechanical energy?Mechanical energy is the energy obtained by the things in which work is performed. Mechanical energy is the energy that an item possesses as a result of its motion or location.
The light from a light bulb. and the light from the sun is a form of light energy, the heat from a fire is an example of the thermal energy,
The energy in a ball as it is falling is the right example of mechanical energy. Because it includes the potential energy which is the virtue of the position and the kinetic energy due to the motion.
Hence option A is correct
To learn more about the mechanical energy refer to the link;
https://brainly.com/question/13552918
A car enters a freeway with a speed of 6.5 m/s and accelerates to a speed of 24 m/s in 3.5 min. How far does the car travel while it is accelerating? (Hint: find the acceleration first)
a 3205.5 m
b 1548.75 m
c 76.13 m
d 761.3 m
Explanation:
Using Equations of Motion :
(1) v = u + at
24 = 6.5 + a * 210
a (Acceleration) = 0.083 m/s^2
(2) v^2 = u^2 + 2aS
S = 576 - 42.25 / 0.166
S (Distance travelled) = 3215.3 m
(Option A seems a typo since the answer is 3215.3 m)
Describe all of the forces acting on the ice cream in the root beer float. Relate these forces to the fact that the ice cream is floating
Answer: Sample Response: The root beer exerts a force on all sides of the ice cream. These forces are all equal and cancel each other out. Gravity pushes downward on the ice cream. This can also be called the weight of the ice cream. Buoyant force pushes the ice cream upward. The ice cream floats because the buoyant force is greater than the weight of the ice cream.
Answer:
The root beer exerts a force on all sides of the ice cream. These forces are all equal and cancel each other out. Gravity pushes downward on the ice cream. The ice cream floats because the buoyant force is greater than the weight of the ice cream.
Explanation:
Please help me fast and i brainliest!! Two balls are released from the same height. Ball A is released on the surface of Earth, and ball B is released on the surface of the moon. The mass and net force on each ball are recorded in the table. Net Force (N) Mass (kg) Ball A 19.6 2 Ball B 9.6 6 Ball C 6.6 ? Which statement is correct about the mass of ball C, which is released on the surface of the moon from the same height? The mass of ball C is less than the masses of ball A and ball B. The mass of ball C cannot be determined from the information provided. The mass of ball C is greater than the masses of ball A and ball B. The mass of ball C is greater than the mass of ball A but less than the mass of ball B
Answer:
If they both start at the same height then most likely that means that each has an intical velocity and a net force sooooo ball A 19.6
Explanation:
Answer: The mass of ball C is greater than the mass of ball A but less than the mass of ball B.
A bicycle is going 2.6 m/s when it speeds up to 15.4 m/s in 8 seconds. What is the acceleration?
Answer:
acceleration is 1.6 m/s^2
Explanation:
This is a question involving Kinematics so we can use one of the kinematic equations.
Given info: Vi= 2.6 m/s. Vf= 15.4 m/s. T= 8s
We need to solve for acceleration
The best equation to use is (Vf = Vi + at) as it contains all the info we need to solve for acceleration.
Now substitute the values given into the equation.
Vf = Vi + at >> 15.4 = 2.6 + a8
Now solve for a by rearranging the equation.
15.4 -2.6= 8a >> 12.8=8a >> 12.8/8= 8a/8 >> 1.6 =a
NOTES:
Acceleration is the rate of increase of velocity
Vf is final velocity or velocity after acceleration/de-accaeleration occurs
Vi is intial velocity or velocity before acceleration or de-accaeleration occurs
Time is time it took for a certain motion to occur.
y
4
3
2
1
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2.
1 2
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What is the slope of the line?
Answer:
easy no cheater
Explanation:
A rowboat that is traveling 2.5m/s to the north, encounters a current traveling 4.3m/s to the east. What is the resultant velocity of the rowboat, including the angle?
define the focus of a concave lens
Answer:
Principal focus of concave lens -
★ The point at which rays parallel to principal axis coming from infinity appear to converge after being refracted from concave lens is called the principal focus of concave lens.
________________________
• Additional information -
★ Principal focus - A number of rays parallel to the principal axis after reflection from a concave mirror meet at a point on the principal axis or appear to come from a point after reflection from a convex mirror on the principal axis. This is called principal focus.
can someone give me the answers to this question
Answer:
Rubbing his hand and ironing is Mechanical Energy being transformed into Thermal Energy.
Throwing a rock vertically in using Kinetic Energy, it then transforms into Gravitational Energy as the rock falls.
Explanation:
First, as Kwane rubbing his and and iron his clothes using the energy to create heat, that is thermal being transformed.
The rock being thrown uses kinetic energy and due to graviational force of the earth, it is being transformed into Potential Gravitational Energy.
>Explain whether life could exist on other
planets or moons in our solar system.
Answer:
The direct answer to the question "Can there be life..." is that there is potentially a non-zero possibility. Testing the null hypothesis, that there "cannot be life" is quite difficult. Evidence for and against both positions exists. However strong the arguments for life, space provides many harsh environments, yet we know deep in our oceans at hydro-thermal vents or in volcanic geysers there is life. Seeing volcanism on other worlds at least provides a necessary energy source. But the null hypothesis has a fatal flaw. We know of one location where there is life, and we discover over and over again that its conditions are not very special in the Universe. The famous Drake equation goes much further, to single out intelligent life that still exists today and wishes to communicate. But in very sad news for the null hypothesis, even it is non-zero.
A seesaw pivots as shown in below. What is the net torque about the pivot point?
With explanation please
I GIVE 25 POINTS
Answer:
2.3 Nm clockwise
Explanation:
Take counterclockwise to be positive and clockwise to be negative.
∑τ = (3 N) (2.5 m) − (7 N) (1.4 m)
∑τ = 7.5 Nm − 9.8 Nm
∑τ = -2.3 Nm
The net torque is 2.3 Nm clockwise.
What other angle would give the same range at 19 degrees?
Answer:
I think it is acute angle.
Explanation:
Because it is an angle between 0° and 90°. Hope this answer wil help you.
A man is paddling a kayak with the force of 254 N, at an acceleration of 1.39 m/s2. If the kayak weighs 30 kg, what is the mass of the man?
see attached photo below!
Answer:
0 m/s²
Explanation:
Velocity is the slope of the position vs time graph. The graph is linear, so the velocity is constant. Since the velocity is constant, the acceleration is 0.
Is the answer C or B
Answer:
c
Explanation:
though c is wider it has more water.
The answer is *C* Because The C Jar is Wider than others so it holds more water
If an object is moving and it changes its position by 2 min
every 4 s starting from the origin, then the position vs. time
graph is:
Answer: a straight line with a positive slope
Explanation:
If an object is moving and it changes its position by 2 units every 4 s starting from the origin,
What is speed?The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is meter/second.
Learn more about speed from here If an object is moving and it changes its position by 2 units every 4 s starting from the origin,
speed = distance /time
= 2 units / 4 seconds
= 0.5 units/seconds
Thus, the speed of the object would be 0.5 units /seconds
brainly.com/question/7359669
#SPJ6
the question seems incomplete the complete question is If an object is moving and it changes its position by 2 units every 4 s starting from the origin, then the position vs. time graph is
PLEASE HELPPP YALL
Please help me with this question; with steps though because I have to show my work. Thank you. I'll give brainliest to first response and five star ratings!! Please helppppp
Explanation:
Just shift everything except r to the other side.
[tex]r = \sqrt{ \frac{3v}{\pi \: h} } [/tex]
In general, which factor is NOT critical when beginning an exercise program? A. using appropriate protective equipment during exercise B. finding friends who like to exercise the same way you do C. seeing your doctor for a physical assessment prior to beginning exercise D. choosing clothing that is designed to match your exercise program Please select the best answer from the choices provided.
O A
О В
O C
PLEASE HELP!!!
Answer:
B. I looked it up I hope it's right
Explanation:
i hope this helps.
Answer:
its obviously C
Explanation:
i smart like dat
what is 404.2 rounded to the nearest ten thousandth?
Answer:
The answer to your question is 404.2000
WILL GIVE BRAINILY TO FIRST PERSON TO ANSWER!!!!
Complete this sentence. If volume remains the same while the mass of a substance ________, the density of the substance will_______________. increases, stay the same decreases, stay the same decreases, increase increases, increase
The answer is increase.
d = m/v. if you increase the mass without changing the volume, the density will increase.
Which phrase describes a scientific law?
Answer:
a scientific law must be universally correct there could be no contradictions regarding the law anywhere
A car is traveling at 40 m/s. If it travels for 30 s how far will it travel.
Answer:
okay I might be wrong but it was an answer i had in like fifth grade MAYBE 1,200 meters
Explanation:
QUESTION: Is there a relationship between height and shoe size? Write a one sentence
summary of your graph.
J
Answer:
There is no particular relationship between the height and shoe size. But the shoe sizes in males is usually bigger than females. And the shoe size tends to get bigger when the person is taller.
Explanation:
what is the volume of a mineral
Answer:
calculate the volume of each sample by subtracting the intial water volume from the volume after the sample was added . Record the volume of each sample on your chart in mililiters(ML).
Explanation:
I need help finding the average acceleration fo tyler and bree
What is the average of 255, 242, 245?
Answer:
The average is 247.33 if it is for the whole number then it is 247
Explanation:
I did it by adding it all together and dividing it by 3
Answer:
247.33 is the average.
Explanation:
To find the average of a set of numbers:
a. add them up.
b. divide by how many numbers there are.
SO:
a. 255 + 242 + 245 = 742.
b. 742 (total) divided by 3 (# of numbers) = 742/3 = 247.33.
Hope this helps!
Which sentence describes Newton's second law?
O A. Two forces are unbalanced if they are unequal or they are not
acting in opposite directions.
O B. When the forces on an object are balanced, the object does not
move.
C. Larger net forces are required to accelerate objects that have
more mass.
D. The action force applied by one object to another is equal in
magnitude to the reaction force.
Answer: Larger net forces are required to accelerate objects that have more mass
Explanation:
Does a calculation lose any information when converted from centimeters to meters? Explain
Answer:
No
Explanation:
There are many units that are used to measure length of an object. For example centimeters, meters, millimeters etc.
There is a relationship between any of two units to measure lengths. If we want to convert some length from cm to m, it can be done as follows :
1 cm = 0.01 m
or
1 m = 100 cm
When we use this conversion, the calculation remains the same. Only the way to represent it will be different.
Hence, there is no lose of information when converted from centimeters to meters.
How long would it take Jesse with an acceleration of -2.50 m/s^2 to bring his bicycle with an initial velocity of 13.5 m/s to a complete stop?
a.6.1 s
b.3.7 s
c.12.1 s
D.5.4 s
Answer:
use first equation of motion v=u+at..v is 0..since we have to take him to rest and u is 13.5
Explanation:
u = 13.5 m/s
a = - 2.5 m/s^2
v = u + at
0 = 13.5 - 2.5 * t
t (time to reach a complete halt) = 5.4 sec
What claim can you make about the relationship between energy and mass?
what is acceleration of a 12 kg cart if a net force of 144 N is applied on it?
Answer:
The correct answer is I just did the quiz
Force,F=144N
Mass,m=12Kg
Force=Mass*Acceleration
144=12*a
12a=144
a=12