Hello!
For the explanation of this energy conservation exercise, where we'll use energy conservation law, let's see what this principle proposes.
How you should know, mechanical energy conserves in every point, that is to say mechanical energy is same in A point like B point. (Mechanical energy will be represented by "Me")
Once time we know that, let's take the 220 Joules momentum like A point, and when 55 Joules momentum like B point.
Then, let's use the energy conservation principle:
Me(A) = Me(B)
We know Mechanical energy in A point, so just lets replace according to our data:220 J = Me(B)
In B point, we know kinetic energy, but we dont know gravitational potential energy, so lets descompose Mechanical energy, into kinetic energy and gravitational potential energy:220 J = Ke + Gpe
We know kinetic energy value, so lets replace it:220 J = 55 J + Gpe
Finally, just clean Gpe and resolve it:Gpe = 220 J - 55 J = 165 J
Gravitational potential energy is of One hundred sixty five Joules (165 J).
║Sincerely, ChizuruChan║
how can the movement of energy can be tracked by observing the changes the energy causes to matter
5. If a bus travels 120 miles and travels at 35 miles per hour, how long will the trip take?
Please help ASAP
Answer:
3.43 hrs
Explanation:
Assuming the bus needs to travel 120 miles in total;
It has an average velocity of 35 mi/hr and a total distance of 120 mi.
We can use the equation for displacement:
d = v_(avg) * t Notice this is the area under the curve of a velocity vs time graph.The displacement of the bus is 120 miles and its average velocity is 35 mi/hr. Substitute these values into the equation.
120 = 35 * t t = 120/35 t = 3.43 hoursThe trip will take 3.43 hours for the bus to travel a total distance of 120 miles.
Speed = Distance/Time
we have speed and distance from the question;Now,
35 = 120/t
35/120 = 1/t
120/35 = t
3.42 hours = t
What is biomass energy?
a. Energy harvested from plant material
b. Energy harvested from recycled petroleum O c. Energy harvested from synthetic oil
d. Energy harvested from wind
Answer:
A.
Explanation:
Biomass energy can be harvested from plants, wood, waste, and living or once living organisms.
~ LadyBrain
A ball is thrown downward with an initial velocity of 12.1 m/s. How long will it take to reach a velocity of -24.5 m/s? (Negative indicates the downward direction)
A) 1.27 s
B) 3.73 s
C) there is not enough i for to solve the problem
D) 14.6 s
Answer:
Explanation:
The sig figs are off in the answer (unless you use -9.81 for the acceleration due to gravity. My classes always use -9.8, which is 2 sig figs. But nevertheless, we can solve it!) Use the velocity formula:
[tex]v_f=v_0+at[/tex] where vf is the final velocity, v0 is the initial velocity, a is the acceleration due to gravity, and t is the time in seconds. Filling in, using the fact that both the velocities are negative since the ball is going down:
-24.5 = -12.1 +(-9.8)t or
-24.5 = -12.1 - 9.8t and
-12.4 = -9.8t and divide to get that
t = 1.27 sec
Answer:
A)1.27s
Explanation:
The sig figs are off in the answer (unless you use -9.81 for the acceleration due to gravity. My classes always use -9.8, which is 2 sig figs. But nevertheless, we can solve it!) Use the velocity formula:
where vf is the final velocity, v0 is the initial velocity, a is the acceleration due to gravity, and t is the time in seconds. Filling in, using the fact that both the velocities are negative since the ball is going down:
-24.5 = -12.1 +(-9.8)t or
-24.5 = -12.1 - 9.8t and
-12.4 = -9.8t and divide to get that
t = 1.27 s
What color would my greenish blue fish look like if I had a light blue RGB light tank color?
Answer:
it would look greenish blueish
Explanation:
Which of the following physical properties makes copper and aluminum
useful for making frying pans?
A. Magnetism
B. Electrical conductivity
C. Density
D. Thermal conductivity
Help please!
Show the molecular formula and electron structure of the simplest compound that forms with only carbon and hydrogen atoms.
Answer:
Explanation:
Simplest hydrocarbon (something made of carbon and hydrogen only) is Methane [tex]CH_{4}[/tex]
A velocity-time graph is plotted showing the motion of a car. If the graph is a curved line, it means that
(a) The car started at rest
(b) Acceleration was constant
(c) Velocity is increasing uniformly
(d) Velocity is changing non uniformly
If the velocity time graph is curved, it then means that the velocity is changing non uniformly.
What is the velocity time graph?The velocity time graph is used to describe the changes in the velocity of a body with time. The slope of the graph is known as the acceleration of the motion.
If the velocity time graph is curved, it then means that the velocity is changing non uniformly.
Learn more about velocity time graph:https://brainly.com/question/11290682
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What is the speed of the car relative to the speed of the bicycle
Answer:
The highest speed officially recorded for a bicycle ridden in a conventional upright position under fully faired conditions was 100 km/h (62 mph) by Alale (be mola) over 200 m.
Explanation:
What the effect positively charged objects and negatively charged objects have on each other
Answer:
often Positive and negative charges balance each other which gives an overall neutral charge. if they are unbalanced then it will result in static electricity.
The pelvis bone functions as an attachment point for legs, so the pelvis found in dolphins is .... organ.information about this organ tells us that
It would be C then B
C because vestigial means remnant of something that was once there
B because a pelvic bone is typically found in creatures that walk
Which resource would be the best choice to learn more information about studying martial arts?
I think videos help more than books when it comes to martial arts. You can get it on YouTu.be if your teacher doesn't teach you online, in this pandemic.
Answer:
The answer is A.) Dance studio.
Explanation:
See screenshot below
Hope this helps! :D
(Can you mark me brainliest?)
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Which of the following is a part of a constitutional republic
Laws are written by a king
People must obey the president.
People vote for representatives.
People cannot affect the government.
What current flows through a hair dryer plugged into a 110 Volt circuit if it has a resistance of 25 ohms?
Answer:
Ohm's Law says
V=I⋅R.
A bit of algebra says
I=VR So V= 110V 25 Ω=4.4VΩ=A
I hope this helps,
Explanation:
What occurs when light bends while passing from one medium to another?
Answer:So the answer is B
Explanation: When the light rays either bend or change their direction while passing from one medium to another it is called refraction of light. The refraction of light takes place when light travels from air into glass, from glass into air, from air into water or from water into air.
Two children are pulling and pushing a 30.0 kg sled. The child pulling the sled is exerting a force of 12.0 N at a 45o angle. The child pushing the sled is exerting a horizontal a force of 8.00 N. There is a force of friction of 5.00 N.
Answer:
okay sooo the weight is: 294 n
the normal force is 286 n
the acceleration is: -0.38 m/s²
Answer:
294 n
286 n
-0.38 m/s²
Explanation:
Please help I’ll give brainliest
kinds of solar power stations
a machine lifts a 35-kg object 20.0 m in 2.0s. How much power is produced bu the machine to lift the object?
The power is produced by the machine to lift the object is 3430 Watts.
What is power?Power in physics is the quantity of energy that is transported or transformed per unit of time. The watt, or one joule per second, is the unit of power in the International System of Units. Power is also referred to as activity in ancient writings. A scalar quantity is power.
Given parameters:
Mass of the object = 35 kg.
Height: h = 20.0 s.
Time taken = 2.0 s.
work done by the machine = mgh = 35 ×9.8 × 20.0 joule = 6860 joule.
Hence, power of the machine = work done/time = 6860/2.0 Watts = 3430 Watts.
Learn more about power here:
https://brainly.com/question/29575208
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if the rotation of a planet of radius 7.66 x 10^6 m and free-fall acceleration 8.34 m/s^2 increased to the point that the centripetal acceleration was equal to the gravitational acceleration at the equator, what would be the tangential speed of a person standing at the equator?
answer in units of m/s
Answer:
On the surface of the moon the weight of an object points towards the center of the moon and its magnitude is approximately 1/6 the magnitude of its weight on the surface of the earth. The mass of the object, i.e. its resistance to acceleration, is the same everywhere
How do we create a magnet using electricity ?
Answer:
By simply wrapping wire that has an electrical current running through it around a nail, you can make an electromagnet. When the electric current moves through a wire, it makes a magnetic field. If you coil the wire around and around, it will make the magnetic force stronger, but it will still be pretty weak.
Explanation:
Qual seria o consumo mensal de energia elétrica de um chuveiro de potência de 7000W quel funciona cerca de 10 minutos por dia??
Answer:
Monthly cost = 35.7
Explanation:
Given the following data;
Power = 7000 Watts
Time = 10 minutes
Number of days = 30 days
Conversion:
60 minutes = 1 hour
10 minutes = 10/60 = 0.17 hours
To find the monthly cost of electricity;
Energy = power * time
Energy consumption = 7000 * 0.17
Energy consumption = 1190 Watt-hour = 1.19 KWh (1 Kilowatts is equal to 1000 watts).
Next, to find cost of monthly energy consumption;
Cost = 1.19 * 30
Cost = 35.7
How are plants propagated using
leaf and leaf-bud cuttings?
What is formula for Electrical Power?! (with resistance included in it)
Answer:
V = I × R and the power law equation (formula): P = I × V. P = power
weber is derived unit of ...........
Answer:
magnetic flux
hope this helps :))
Answer:
magnetic flux
Explanation:
An athlete runs 600 m in 2 minutes and the next 1000 m in 1 minute on the same straight
path. What is his average speed and average velocity?
Answer:
Explanation:
Average speed is found by adding together the total distances traveled by the athlete and divide that total by the total time it took.
Average velocity is vector, which means it includes direction. If the athlete heads one way and then turns around, his displacement might actually be negative! Yikes! Let's look at speed first:
[tex]s=\frac{600+1000}{2+1}=\frac{1600}{3}=533\frac{1}{3}\frac{m}{min}[/tex]
Velocity is the displacements added together divided by the total amount of time it took. The displacement is the same as the distance here, since the athlete did not veer off his straight-path and didn't turn around.
Average velocity = average speed = 533.3 m/min
13. Which cart has the greatest inertia?
1. a 1-kg cart traveling at 4 m/s
2. a 2-kg cart traveling at 3 m/s
3. a 3-kg cart traveling at 2 m/s
4. a 4-kg cart traveling at 1 m/s
Nêu 2 ví dụ cho mỗi trường hợp sau: vật chuyển động,đứng yên,chuyển động do với vật này đứng yên so với vật khác,chuyển động thẳng,chuyển động cong,chuyển động tròn.
Answer:
Hai ví dụ như sau:
a) Vật thể chuyển động - Phương tiện di chuyển, Người đàn ông đi bộ
b) ở trạng thái nghỉ - Xe đứng, người ngồi
c) Chuyển động vì một vật đứng yên so với một vật khác - Một người đàn ông ngồi trên sân ga đứng yên so với đoàn tàu đang chuyển động, Một ô tô chuyển động ngang qua những ngôi nhà đang đứng yên
d) chuyển động thẳng - Đi bộ trên đường, chuyển động lên trên
e) chuyển động cong - Chạy trên đường tròn, đạn bắn ra từ súng
f) chuyển động tròn đều - Xe chuyển động trên đường cong, êlectron chuyển động vuông góc với từ trường đều
Explanation:
Hai ví dụ như sau:
a) Vật thể chuyển động - Phương tiện di chuyển, Người đàn ông đi bộ
b) ở trạng thái nghỉ - Xe đứng, người ngồi
c) Chuyển động vì một vật đứng yên so với một vật khác - Một người đàn ông ngồi trên sân ga đứng yên so với đoàn tàu đang chuyển động, Một ô tô chuyển động ngang qua những ngôi nhà đang đứng yên
d) chuyển động thẳng - Đi bộ trên đường, chuyển động lên trên
e) chuyển động cong - Chạy trên đường tròn, đạn bắn ra từ súng
f) chuyển động tròn đều - Xe chuyển động trên đường cong, êlectron chuyển động vuông góc với từ trường đều
Select the statement which are true for current, voltage and resistance:
A. As resistance increases, current also increases.
B. Current is directly proportional to voltage.
C. As resistance increases, current decrease.
D. If the voltage of a bulb is 12 V, and the resistance is 4 ohms, then the current must be 5 A.
Answer:
B.
Explanation:
Current is directly proportional to voltage and inversely proportional to the resistance.
The statement that is true is:
B. Current is directly proportional to voltage.
and
C. As resistance increases, current decreases.
Please help, if u can. i linked the picture down below :)
Answer:
For Parent #1 missing box it's t and for Parent #2 missing box is t