Answer:
Bread turns brown in the toaster.
plz mark brainliest!! plzzz
10)A car is moving from rest and attained a velocity of 80 m/s. Calculate the
acceleration of the car after 5 s?
Answer:
initial velocity (u)=0
final velocity (v)=80m/s
time(t)=5s
acceleration (a)=?
Explanation:
we have
v=u+at
80=0+a×5
5a=80
a=80/5=16m/s²
What is the unit of measure for the rate at which electricity flows?
That's the Ampere.
1 Ampere = 1 Coulomb of charge per second.
49. A vertically hung 0.50-meter- long spring is stretched from its equilibrium position to a length of 1.00 meter by a weight attached to the spring. If 15 joules of elastic potential energy are stored in the spring , what is the value of the spring constant?
Answer:
[tex]K=120[/tex]
Explanation:
From the question we are told that
Length of spring [tex]l_1=0.5m[/tex]
Length of stretched [tex]l_s=1m[/tex]
Potential energy of spring [tex]E=15J[/tex]
Generally equation for energy stored is mathematically given as
[tex]U=1/2K \triangle x^2[/tex]
[tex]K=\frac{2U}{\triangle x^2}[/tex]
[tex]K=\frac{2*15}{ 0.5^2}[/tex]
Therefore value of the spring constant in N/m? is given as
[tex]K=120[/tex]
The value of the spring constant is 120 N/m.
Spring constant
The spring constant of the spring is calculated by applying the principle of conservation of energy as follows;
[tex]\frac{1}{2} k \Delta x = U[/tex]
Where;
K is the spring constantΔx is the extensionU is the elastic energyThe value of the spring constant is calculated as follows;
[tex]k = \frac{2U}{\Delta x} \\\\k = \frac{2\times 15}{0.5^2}\\\\k = 120 \ N/m[/tex]
Learn more about spring constant here: https://brainly.com/question/1968517
Waves propagate along a stretched string at a speed of 8.0 m/s. The end of the string vibrates up and down once every 1.5 s. What is the wavelength of the waves traveling along the string?
Answer:
So we have waves F= 1/t So F= 1/1.5= 0.66V= wavelength × F 8.0m/s= x × 0.66x=12.2The wavelength of the waves traveling along the string is 12 meters.
What is a Wavelength?
The distance between adjacent successive crests or troughs of a wave is termed as its wavelength. Wavelength is calculated in the wave's direction.Given:
Waves propagate along the stretched string at speed = 8.0 m/s
The end of the string vibrates up and down once every 1.5 s.
∴ Time = 1.5 s
We have to find the wavelength of the waves.
We know,
⇒ Time = 1/frequency
⇒ 1/frequency = 1.5
Now
⇒ speed = frequency × wavelength
⇒ wavelength = speed / frequency
⇒ wavelength = 8 × 1.5
⇒ wavelength = 12 m
Therefore, the wavelength of the waves traveling along the string with given speed is 12 m.
Learn more about the Wavelength here: https://brainly.com/question/17774076
#SPJ2
The strength of an electrical field decreases as you move farther from the source.
True or False
Why do we see Moon phases?
Answer:
The moon its self does not generate life.
Explanation:
Moon phases are determined by the relative positions of the Moon, Earth, and Sun. Instead, the Moon's phase depends only on its position relative to Earth and the Sun. The Moon doesn't make its own light, it just reflects the Sun's light as all the planets do. The Sun always illuminates one half of the Moon.
{ hope this helps T-T }
Can music exist without the elements?
Answer:no
Explanation:
Calculate the force applied (in newtons) if a pressure of 7Pa is acting on an area of 21m?.
Answer:
147N
Explanation:
pressure = 7pa
area= 21m
force=?
now,
p = f/a
7 = f/21
f = 21×7
therefore, f = 147N.
13. Explain whether the following answers are reasonable or not. Check the magnitude, the units, and the
direction. You DO NOT have to solve the problems yourself.
a) A car speeds up as it enters the freeway. It accelerates at 5.4 m/s? What was the car's final speed?
ANSWER: 6.3 m/s forward
I
plz help me
I have to get it done today
the gravitational force between the sun and earth is larger than sun and the moon. what do you think the reason for this is?
Answer: The greater an object's mass, the more gravitational force it exerts.
Explanation: So, to begin answering your question, Earth has a greater gravitational pull than the moon simply because the Earth is more massive. Sorry if I get this wrong. I am in 5th grade! ♥
The gravitational attraction between the Sun and Earth is stronger than the attraction between the Sun and the Moon, principally because of the Sun's greater mass and greater distance from Earth.
An object's mass affects how much gravitational pull it exerts. Both the Earth and the Moon are much less massive than the Sun. Approximately 330,000 times more massive than the Earth, and roughly 27 million times more massive than the Moon, is the Sun. Because of the Sun's greater mass, its gravitational pull is thus much stronger.
The strength of the gravitational force between two objects is greatly influenced by their distance from one another. The Sun and Earth are separated from one another by a far smaller distance than the Sun and Moon. The Sun is located roughly 150 million kilometers from Earth, while the Moon is located roughly 384,400 kilometers from the Sun on average. The inverse square law asserts that the gravitational force decreases with increasing distance, and that it is only one-fourth as strong when two objects are twice as far apart.
Hence, the gravitational force between the sun and earth is larger than the sun and the moon due the mass of the sun and earth is greater than the moon and sun. The distance between the sun and the earth is comparatively smaller than the distance between the sun and the moon.
To learn more about Gravitational Force, here:
brainly.com/question/29190673
#SPJ4
A car is traveling in a race. The car went from the initial velocity of 35 m/s to the final velocity of 65 m/s in 5 seconds. What is the acceleration? 0-13 m/s2 0-6 m/s2 0.6 m/s2 O 13 m/s2
Answer:
6m/s²
Explanation:
Given parameters:
Initial velocity = 35m/s
Final velocity = 65m/s
Time taken = 5s
Unknown:
Acceleration = ?
Solution:
Acceleration is the rate of change of velocity with time taken;
Acceleration = [tex]\frac{Final velocity - Initial velocity }{time}[/tex]
So;
Acceleration = [tex]\frac{65 - 35}{5}[/tex] = 6m/s²
Cowbirds follow groups of cows, or other grazing animals, eating the insects kicked up by the walking animals. The herbivores are not bothered by the cowbirds. This relationship is an example of:
a
Competition
b
Commensalism
c
Predation
d
Mutualism
Answer:
d: mutualism
Explanation:
I'm guessing that means they're on mutual grounds so they don't mind sharing?
A bowling ball with a mass of 9 kg is moving at a speed of 4 m/s. What is its
kinetic energy?
O A. 144 J
O B. 72J
O C. 18J
O D. 36 J
Help please!!
Because the electrons in a molecule of hydrogen fluoride (HF) are more strongly pulled toward the fluorine atom, the molecule is nonpolar.
Please select the best answer from the choices provided
T
F
Answer:
false
Explanation:
this makes the molecule very polar
What distance does a rocket travel flying for 5 seconds at 100m/s?
Answer:
500m
Explanation:
100x5=500
then add the m
are clocks permanently stuck to walls?
Answer:
It depends
Explanation:
what is this question
Answer:
No...
Explanation:
I think this may be a trick question... so from my reasonable logic, I'm gonna say no because more often then not they are attached to the wall with nails/screws. Or they are hanging.
So they could come off. Also if someone was desperate, they could always grab a chainsaw and force it off of the wall. Not a great idea though, then the wall would be broken!! Most likely the clock too!
Hank, Ryan, Stu, and Ted are each the same mass and are parachuting through the air after having jumped from the same height. Who has transferred the most kinetic energy to his surroundings? A. Ted B. Ryan C. Stu D. Hank
Answer:
it is hank
Explanation:
Answer:
Hank
Explanation:
i did it in study island
Which of the following is an example of an immiscible liquid?
1. oil and water
2. water and juice
3. sugar and water
4.water and food coloring
PLEASE ANSWER FAST AND I WILL CHOOSE AS BRAINLIEST.
35 POINTS!!!!
Answer:
the answer is 1, oil and water
Answer:
It is oil and water i took the quiz and got it correct !
Hope this helps you! :D
A freight train has a mass of 270, 700 kg and has an acceleration of 40 m/s2. How much force is acting on the train? Formula:
Answer:
1.08 x 10⁷N
Explanation:
Given parameters:
Mass of freight train = 270700kg
Acceleration = 40m/s²
Unknown:
Force acting on the train = ?
Solution:
From Newton's second law of motion, we know that:
Force = mass x acceleration
So;
Force = 270700 x 40 = 1.08 x 10⁷N
4. Can an object's displacement be negative? What does the sign indicate about the
displacement?
Answer:
1. Displacement can be positive OR negative. The sign implies the direction of the displacement. 2. In one dimension the direction is indicated by the sign: negative if to the left and positive if to the right.
Explanation:
calculate the heat of television if:
light-119J
Sound-1J
electricity-200J
heat-?
quickly pls
Answer:
002 bc eause iy is
Explain how a bathroom scale is like a biofeedback machine.
Answer:
Explanation:
How does temperature affect the volume and pressure of a gas?
Answer:
as temperature increases, the pressure of gas also increases as well as volume
Explanation:
PLEASE ILL GIVE YOU BRAINLIEST
Which word identifies this part of a eukaryotic cell?
A. vesicles
B. chromatin
C. cytoplasm
D. nucleolus
Answer:
c
Explanation:
Answer:
my answer has to be more than 20 characters long
Explanation:
C.cytoplasm
A man is attempting to push a chair across the floor exerting a force of 50 N .When will the chair exert a force of 50 N on the man?
Answer:
ALWAYS ( in all cases and at all times)
Explanation:
From Newton's 3rd Law of motion which states that every action that occurs (force) there will be equal as well as opposite reaction. Therefore as the man is pushing the chair exerting 50N force, the chair also is is exerting equal force as well as opposite force on him as he is pushing it
Please answer will mark brainlyist
Answer:
B) golf
Explanation:
i think
Can anyone help me with this? I really need the help
for each of them you need to type how they make you feel when you like need to make decision
Explanation:
a truck starts from rest and accelerates for 25 seconds to reach a velocity of 60m/s . calculate the rate of acceleration for the truck
Answer:
2.4m/s²
Explanation:
Given parameters:
Initial velocity = 0m/s
Time 25s
Final velocity = 60m/s
Unknown:
Acceleration = ?
Solution:
Acceleration is the rate of change of displacement
Acceleration = [tex]\frac{Final velocity - Initial velocity}{time}[/tex]
Acceleration = [tex]\frac{60 - 0}{25}[/tex] = 2.4m/s³
HELP ME PLEASE
Which of the following is true about the International Space Station?
A. It is on the surface of Mars.
B. It is the size of ten football fields.
C. It was built from separate parts sent to space.
D. It was a partnership between the US and Soviet Union
Please
Answer:
The answer is C. Its not on mars and its not 10 football feilds its only 1
The International Space Station was built from separate parts sent to space.
What is International Space Station?A sizable spacecraft in orbit orbiting the Earth is called the International Space Station. Crews of astronauts and cosmonauts reside there as a home. The space station serves as an exceptional science lab. The space station was created and used by international cooperation.
The components of the space station were put together by astronauts while they were in space. It travels around 250 miles above Earth's surface on its typical orbit. It has a speed of 17,500 mph. It therefore orbits the planet every 90 minutes. The space station is being used by NASA to learn more about surviving and operating in space. These discoveries will enable sending more people into space than ever before.
For the entire space station, there is no set ownership stake. Instead, each partner should maintain authority and control over the elements it registers and over employees in or on the Space Station who are its nationals, according to Article 5 of the IGA. As a result, only one partner holds sole control of each ISS module. However, the contracts for using the space station's amenities are more intricate.
Learn more about International Space Station here:
https://brainly.com/question/13033832
#SPJ6