Over the course of the 4 hours for which farmer Joe's tractor is pulling the heavy plow, the plow is gaining energy by virtue of its displacement --termed the Kinetic energy.
According to the question, Farmer Joe drives the tractor for 4 hours.
However, the tractor is connected to a heavy plow and is used to pull the plow across a rocky field.
The question requires that we determine if the plow is gaining or losing energy.
In the plow's state of rest, prior to when it is connected to the tractor and pulled by the tractor; the plow possess a form of energy by virtue of its position termed the Potential energy.However, the focus of the question is during the pulling action of the tractor on the plow.
As such, the plow now has a kinetic energy by virtue of its displacement..Ultimately, the plow is gaining energy as it is being pulled by the tractor and now has Kinetic energy.
Read more:
https://brainly.com/question/15879747
Sue and Jenny kick a soccer ball at exactly the same time. Sue’s foot exerts a force of 68.9 N to the north. Jenny’s foot exerts a force of 85.4 N to the east.
a) What is the magnitude of the resultant force on the ball?
Answer in units of N.
Explanation:
the magnitude of the resultant force =
√(68.9² + 85.4²)
=√(4,747.21 + 7,293.16)
=√12,040.37
= 109.7 N
»Sue's style feet (north) = 68.9N
»Jenny style feet (East) = 85.4N
So, the resultant force on the ball is
= √(68.9² + 85.4²)
= √(4,747.21 + 7,293.16)
= √(12,040.37)
≈ 109.72N✅
~Physics#2
here’s a clearer picture :)
Explanation:
so your answer is 4 km/ day, which I have given in earlier answer,.
hope this helps you again.
will an object have the same weight on moon as it does ?
Answer:
The mass of an object is the same everywhere either on earth or moon.
The weight of an object depends on a gravitational acceleration and it's different from one on earth and that on moon.
therefore the weight changes but the mass is the same.
Explanation:
Hope this helps
PLEASE HELP ME SOMEONE PLEASE
Answer:
a protons
b equals
c neutrons
d add
e electrons
Volcanic Island Arcs, such as Japan, form when a(n) __________ plate is subducted below a(n) _________________ and takes seawater with it. A rock and water mixture will break through the crust.
Volcanic Island arcs form when an oceanic tectonic plate is subducted below a tectonic plate taking seawater with it.
Volcanic island arcs occur offshore during volcanoes. They occur due to the subduction of an oceanic plate under another tectonic plate. Volcanic Island arcs occur mostly in ocean basins.
Due to the subduction of oceanic plates under tectonic plates, Island Arcs are found, mostly along the margins of continent.
Hence we can conclude that Volcanic Island arcs Form when an oceanic tectonic plate is subducted below a tectonic plate taking seawater with it.
Learn more : https://brainly.com/question/18662349
What happens to the density of a fluid as it temperature increases/decreases?
A 3000-kg spaceship is moving away from a space station at a constant speed of 3 m/s. The astronaut in the spaceship decides to return to the space station by switching on engines that expel fuel so that the sum of the forces exerted on the spaceship by the expelled fuel points toward the space station. What is the magnitude of the minimum force needed to bring the spaceship back to the space station
Answer:
P = m (v2 - v1) change in momentum
P = - m v1 if v2 is to be zero
F = P / t change in momentum equals applied force
F = m a = - m v1 / t
a = -v1 / t or a * t = -v1`
Any combination of a and t that is greater than v1 will bring the space station to a halt
If a is small then t must be large
Any applied force will eventually bring the ship to a halt and then begin the acceleration towards the starting point
make a island with all renewable energy soursws and how it works and about it but at year 9 level
Answer:
How are we expected to make an island
A traveling at 35 m/s increases its speed to 40 m/s in 5 seconds in order to make a lane change.
What is the car's acceleration
Answer:
The acceleration of the car was one meter per second squared.
Explanation:
We can use one of the kinematic equations:
[tex]\displaystyle v_f = v_i + at[/tex]
Where v_f is the final velocity, v_i is the initial velocity, a is the acceleration, and t is the time (in seconds).
The final velocity is 40 m/s, the initial velocity is 35 m/s, and the time is 5 s. Substitute and solve for a:
[tex]\displaystyle \begin{aligned}(40 \text{ m/s}) &= (35 \text{ m/s}) + a(5\text{ s}) \\ \\ 5 \text{ m/s} &= a(5\text{ s}) \\ \\ a &= 1\text{ m/s$^2$} \end{aligned}[/tex]
In conclusion, the acceleration of the car was one meter per second squared.
the kinesis of objects and figures within the frame and of the frame itself are both aspects of ________.
How does a pedometer help people reach their fitness goals?
Answer:
Pedometers are designed to detect vertical movement at the hip and so measure the number of steps and provide an estimate of distance walked. They cannot provide information on the temporal pattern of physical activity or the time spent in different activity at different intensity.
6. A surface receiving sound is moved from its original position to a position three times fa
received sound thus becomes
O A. three times lower
O B. nine times lower.
O C. three times higher.
O D. nine times higher.
Answer: Answer is D
Explanation:
A surface receiving sound is moved from its original position to a position three times farther away from the source of the sound. The intensity of the received sound thus becomes nine times as low.
A surface receiving sound is moved from its original position to a position three times farther away from the source of the sound. The intensity of the received sound thus becomes nine times lower . Option(B) is correct.
What is intensity of sound?The power of sound per unit area is used to define sound intensity. The measurement of sound intensity in the air is the typical context. The surface of the sound source also plays a role. The kinetic energy of the mass of air is produced by the source's and the vibrating surface's increasing amplitudes.
With the air's mass vibrating and with its average speed, this kinetic energy rises. The distance from the sound source affects how strongly the ear perceives a sound. The characteristics of the elastic medium between a sound source and the ear also affect intensity. The sounds are weakened by non-elastic materials like wool, felt, etc.
Mathematically: sound intensity = acoustic pressure/normal area to the direction of propagation.
So, when a surface receiving sound is moved from its original position to a position three times farther away from the source of the sound, its normal area becomes 9 times larger and intensity of the received sound thus becomes nine times lower .
Learn more about sound intensity here:
https://brainly.com/question/14695848
#SPJ2
PLEASE HELP ASAP THANK YOU You're out for run. Your initial velocity is 1.5 m/s. Suddenly a crazy dog starts chasing you and you
accelerate to a velocity of 3 m/s. It takes you 10 seconds to find a safe place to hide from the
Chihuahua. What was your displacement?
Show work
Answer:
Your displacement would be
s = 22.5 m
s=1/2(v+u)t
A bullet is fired horizontally at 343 m/s from the top of a building where height is 37.3 m. The built will be
in flight for seconds
Answer:
Explanation:
A classic projectile motion question. Horizontal motion does not matter whatsoever in the context of this equation as we are looking at the vertical component of velocity only. Since the question states that it is fired horizontally, there is no vertical component of velocity. Thus, v0y = 0.
Assuming the projectile is on the Earth, we can use the free-fall acceleration, 9.8 m/s^2.
The question gives us Δy, which is 37.3m.
Using the second kinematics equation, Δy = v0t + (at^2)/2, we can substitute in the values.
37.3 = 0 + 0.5(9.8)t^2
37.3 = 4.9t^2
7.61224489796 = t^2
t = 2.75902970226 seconds.
1. Width of A postage stamp is one m, 15 cm, or 20 mm
2. A thickness of ACD 0.1 m 0.01 m or 0.001 m
3. Height of a bus 152.4 mm, 20M, or 250 cm
4 Length of an inch worm 25.4 mm, 25.4 cm or 0.254 m
5. Length of a football field 91.44 m 200 m or one km
Will give brainless
Another unfortunate bug splatters on the windshield of a moving car. Which has the greater change in momentum---the bug or the car?
Answer:
The change in momentum for the bug and the car will be equal, impulses will be equal in opposite directions and the bug will have a greater acceleration compared to the car, because it has a smaller mass.
Explanation:
Hope this helps..
11 12 13 14 15 16 17 18 19 20
TIME REMAINING
01:40:56
Who described atoms as small spheres that could not be divided into anything smaller?
Bohr
Dalton
Rutherford
Thomson
Answer:
jhon Dalton described it
Explanation:
hope it works out for you
if please mark brainiest
John Dalton described atoms as small spheres that could not be divided into anything smaller.
Who was John Dalton?John Dalton is the scientist who described atoms as small spheres that could not be divided into anything smaller. He proposed his atomic theory in 1803, which included the postulate that all matter is composed of tiny, indivisible particles called atoms. D
Dalton's theory also stated that atoms of different elements are unique in their mass and chemical properties and combine in simple whole-number ratios to form compounds. Dalton's model of the atom was a solid, indivisible sphere that was the smallest possible unit of an element.
While this model has been refined and updated with new discoveries, Dalton's contributions laid the foundation for the modern understanding of atomic structure and chemical reactions.
Learn more about John Dalton, here:
https://brainly.com/question/1500237
#SPJ7
A 2.6 kg rock is dropped from a height of 10 m. With what speed will it strike the ground. Ignore air resistance. Solve using conservation of energy (start with Ebefore = Eafter).
Answer:
[tex]mgh = \frac{1}{2} m {v}^{2} \\ v = \sqrt{2gh} \\ = \sqrt{2 \times 9.8 \times 10} \: m. {s}^{ - 1} [/tex]
Sean, an astronaut stands on the edge of a lunar crater and throws a Frisbee™ horizontally with a velocity of 5.00 m/s. With no atmosphere on the moon the Frisbee ™ will not have any force of lift so it will “fly” like a stone. The floor of the crater is 77.0 m below the astronaut. What horizontal distance will the Frisbee™ travel before hitting the floor of the crater? (The acceleration of gravity on the moon is 1/6th that of the Earth).
Answer:
48.55mm
Explanation:
why do solar eclipses happen only during a new moon?
Answer:
For a solar eclipse to occur the moon must be between the earth and the sun (the light of the sun is blocked)'
By definition this is a new moon (which occurs when the moon cannot be seen because it is located between the sun and the earth).
16. After a crime scene has been photographed, the field inspector will collect and package the * O circumstantial evidence O scientific method O physical evidence O individual characteristics
The physical evidence are the silent witnesses against the perpetrators of a crime
The correct option of what the field inspector packages after the crime scene has been photographed is the option;
Physical evidenceReason:
Physical evidence are evidence that originate from inanimate objects or origin that is nonliving, and includes every material or object that serve as an indicator that someone has committed a crime, or that can link a perpetrator to crime
Examples include; Documents, hair, skin, fingerprints, weapons, soil, or fibers
The field inspector, collects the evidence that shows that a crime has been committed which are the physical evidence, after the crime scene has been photographed
Therefore, the correct option is; Physical evidence
Learn more here:
https://brainly.com/question/16340616
I NEED A SCIENCE EXPERT TO GIVE ME THE RIGHT ANSWERS TO THESE ASAP
Answer:
indepent valuable and random variable
Please answer this
knvijhbuehguqehguhgnghjnguhsgi0jrgij
Answer: The correct answer is c
Explanation: When heat radiates it is showing moisture and mixed ways they combine
Answer:
the answer is c trust me bruv
Explanation: im smart
inimbita ka ng iyong kamag aral na magpunta pagkatapos ng inyong klase sa isang video shop na malapit sa inyong paaralan ngunit nag bilin ang nanay mo na umuwi ka nang maaga dahil mayroon siyang ipagagawa sa iyo ano ang gagawin mo?
Answer:
sabihin sa kamag-aral na deh muna ako sasama kasi may papagawa pa nanay ko Sakin.
Explanation:
pa brainliest
Which of the following is the correct definition of electric magnetic field
Answer:
the electric magnitic is not a field to have an violen not elictric because a pandmic
sana maka toulong
Which of the following is most likely to require direct current (DC) for proper operation?
a. A blender
b. A flashlight
c. An electric heater
d. A microwave oven
Answer:
the answer is b
Explanation:
in the gravitational field strength formula, g=Gm/r^2, whats the formula for finding m?
Answer:
Explanation:
just isolate the m
m= g.r²/G
how much is the velocity of a body when it travels 600m in 5 minutes ?
its answer is 2M/S
but I don't know solution to take this answer
Explanation:
Displacement= 600 m
Time= 5×60 = 300 sec
Velocity= Displacement/time
= 600/300
= 2 m/s
When a basketball player jumps to make a shot, once the feet are off
the floor, the jumper's acceleration
There's no question.I think these are just the answer choices
What is the density of a block of wood, that weigh 18 grams, and volume is 56ml
Answer:
0.3214 grams per millimetre
Explanation:
Answer: 32
Explanation:
D = m/v
D = 18/56
D = ?