Answer:
Constant Velocity
ANSWER ASAP
identify whether each of the following is a form of mechanical energy: elastic potential energy, chemical potential energy, gravitational potential energy.
Answer:
I'm not great at science, but I believe that the answer is elastic potential energy.
Explanation:
Components of mechanical systems store elastic potential energy if they are deformed when forces are applied to the system. Energy is transferred to an object by work when an external force displaces or deforms the object.
explain how the colors of the rainbow are formed
Explanation:
a ray of light pass through raindrops which acts like prism and split the light into its 7 constituent...which when seen by our eyes , we presume it to be a rainbow
Question 2 of 30 The government needs to provide public goods for what reason? A. They are necessary for raising the standard of living. B. Citizens demand government regulation to protect their freedom. C. Private companies cannot profit by providing them. D. The government can reduce taxes by profiting from public goods. SUBMIT
Answer:
Either C or D.
Explanation:
Either one of them.
2. A 1,100 kg car comes uniformly to a stop. If the vehicle is accelerating at -1.2 m/s ², which force is closest to the net force acting on the vehicle? (8.6A) *
Answer:
Since the car comes uniformly to a stop, the force that acts on the vehicle is the net force whose magnitude is equal to 1320 N.
Explanation:
The force acting on the vehicle is given:
[tex] F = ma [/tex]
Where:
m: is the mass = 1100 kg
a: is the acceleration = -1.2 m/s²
We can find the magnitude of the net force:
[tex] F = ma = 1100 kg*1.2 m/s^{2} = 1320 N [/tex]
Since the car comes uniformly to a stop, the force that acts on the vehicle is the net force calculated above.
I hope it helps you!
Answer: its d because it said net force meaning the sum of the forces equaling to d
Explanation:
I weigh 790 N. If my feet make contact with a 303 cm2 patch of ground, what pressure do I make with the floor?
Answer:
A person's shoe has area of 44cm2 on the ground, their weight is 650N. What is their pressure (in N/cm2) A piece of glass can withstand a pressure of 21000 N/m2, what is the minimum force needed to break the glass with a special hammer of surface 3 cm by 4cm.Ice cracks if the pressure on it is more than 3000 N/m2. If a man of mass 800N wants to safely walk over the ice what area do each of his snow boots need to be in m2.
Explanation:
A train travels for 120 seconds (s) at a speed of 50 meter per second (m/s). What was the distance (m) that it travelled?
Answer:
2
Explanation:
50 times 2
HELP ASAP PLS. ILL GIVE BRAINLIEST
Answer:
I'm not completely sure, but I believe the first and third of the three are mechanical.
Explanation:
Chemical potential isn't moving or about to go into motion. It can't be mechanical.
describe the energy transfers of an electron around a circuit when the switch is closed
Answer:
When a switch is closed, electrons move through a circuit from the negative side of a battery to the positive side
Explanation:
Note that current is marked to flow from positive to negative on circuit diagrams, but that's for historical reasons only. Benjamin Franklin did a fabulous job of understanding what was going on, but no one yet knew about protons & electrons, so he assumed current was flowing from positive to negative.
However, what really happens is electrons flow from negative (where they repel each other) to positive (where they are attracted).
As electrons flow through a circuit, they need 'something to do'. In many cases, that something is to light a bulb or heat an element, such as an element on a stove. So, the energy of an electron can be converted to heat or light.
I hope I'm understanding your question correctly
How can you tell when the forces acting on a system are balanced?
a. no lift
b. no accelleration
c. no displacement
d. no gravity
Answer:
a. no lift
Explanation:
To determine if the forces acting upon an object are balanced or unbalanced, an analysis must first be conducted to determine what forces are acting upon the object and in what direction. If two individual forces are of equal magnitude and opposite direction, then the forces are said to be balanced.
plz give me a brianliest
when the pressure Is High the density Is smaller or larger
A net force of magnitude 10 N acts on a 1 kg
object.
What will be the magnitude of the object’s
acceleration?
Answer:
The answer is 10 m/s^2
Explanation:
Newtons Second Law is: F=ma
Taking into account the Newton's second law, the object’s acceleration is 10 m/s².
Newton's Second Law, also called the Fundamental Law of Dynamics, establishes the relationship that exists between the forces that act on an object and the acceleration it experiences.
This law indicates that: "The change in motion is directly proportional to the printed motive force and occurs according to a straight line along which that force is printed."
This means that the acceleration of a moving object depends on the amount of force applied to it at a given moment.
Mathematically, Newton's second law is expressed by:
F= m×a
where:
F = Force [N] m = Mass [kg] a = Acceleration [m/s²]In this case, you know:
F= 10 N m= 1 kg a= ?Replacing:
10 N= 1 kg× a
Solving:
a= 10 N÷ 1 kg
a= 10 m/s²
Finally, the object’s acceleration is 10 m/s².
Learn more about the Newton's second law:
brainly.com/question/23845187?referrer=searchResults brainly.com/question/13959891?referrer=searchResultsThree women push a stalled car. Each woman pushes with a 425N force. What is the mass of the car if the car accelerates at 0.85m/s2?
Please help me, this school work is not the easiest for me.
Answer:
A = mm2
M = km2
F = mg
Explanation:
ASAP I WILL GIVE BRAINLIEST A big wheel with triple the circumference of a smaller wheel will rotate with ____ the force. Group of answer choices
Answer:
A big wheel with triple the circumference of a small wheel will rotate with triple the force.
Explanation:
when this circumference is tripled, it means triple the force (they are directly correlated)The job of a nucleolus is to build ribosomes.
True or False
Answer:
true
Explanation:
Answer: the job of the nucleus is to actually combine into complete ribosomes not make them .
Explanation: ribosomes make protein . so the nucleuses job is to make protein .
39
WERELAIS
01:21:51
Which type of reaction is C2H2011 - 12C + 11H202
O synthesis
decomposition
O oxidation
combustion
Answer:
A
Explanation:
synthesis decompostion
Answer:
Decompositon
Explanation:
A platform diver jumps vertically with a velocity of 4.2 m/s. The diver enters the water 2.5 s later. How high is the platform above the
water?
Answer:
41.13m
Explanation:
Given parameters:
Initial velocity = 4.2m/s
Time taken = 2.5s
Unknown:
height of the platform = ?
Solution:
To solve this problem, we must use the appropriate motion equation.
S = ut + [tex]\frac{1}{2}[/tex]gt²
u is the initial velocity
t is the time
g is the acceleration due to gravity
Now, input the parameters and solve;
S = (4.2x2.5) + ( [tex]\frac{1}{2}[/tex]x 9.8 x 2.5²)
S = 41.13m
Le he regalado a mi hijo un coche de plástico para que se entretenga lanzándolo por el suelo. Lo lanza a una velocidad de 12 m/s, y el coche tan solo es capaz de recorrer 9 metros hasta detenerse. Si el coche tiene una masa de 2kg. ¿Cuál es la fuerza de rozamiento?
Answer:
16 N
Explanation:
Initial speed of a car, u = 12 m/s
Finally, it stops, v = 0
The car covers a distance of 9 meters.
The mass of a car is 9 kg
We need to find the friction force. Friction force always acts in the opposite direction to the direction of motion. It is given by :
F = ma
a is the acceleration of the car. We can find it using third equation of motion as follows :
[tex]v^2-u^2=2as\\\\a=\dfrac{-u^2}{2s}\\\\a=\dfrac{-(12)^2}{2\times 9}\\\\a=-8\ m/s^2[/tex]
Net force is given by :
F = ma
[tex]F=2\times (-8)\\\\=-16\ N[/tex]
So, the force of friction has a magnitude of 16 N.
A baseball is thrown 50.0m in 3.0s, what is the average speed of the baseball? Calculated answer is 16.666667! What is the correct answer when using significant figures?
Answer:
20m/s
Explanation:
Given parameters:
Distance of throw = 50m
Time = 3s
Unknown:
Average speed = ?
Solution:
Average speed is distance divided by time;
Average speed = [tex]\frac{distance }{time}[/tex]
Insert the parameters and solve;
Average speed = [tex]\frac{50}{3}[/tex] = 16.66667m/s = 20m/s
What ideas from the American Revolution inspired leaders of the French Revolution
Answer:
The newly-formed government of the United States also became a model for French reformers. Ideas that were once just abstract thoughts – such as popular sovereignty, natural rights, constitutional checks and balances and separation of powers – were now part of an actual political system that worked
Answer:
The newly-formed government of the United States also became a model for French reformers. Ideas that were once just abstract thoughts – such as popular sovereignty, natural rights, constitutional checks and balances and separation of powers – were now part of an actual political system that worked.
I hope that helped you sorry if not-
reliable definition
Answer:
Reliable, infallible, trustworthy apply to persons, objects, ideas, or information that can be depended upon with confident certainty. Reliable suggests consistent dependability of judgment, character, performance, or result: a reliable formula, judge, car, meteorologist.
Explanation:
Help please and thank you
Answer:
A.
Explanation:
Low interest rates are better than high interest rates when borrowing money with a card or loan. Low-interest are beneficial for people who need to carry a balance from time to time, because less interest means less opportunity to slide into unmanageable debt.
B and D would be the lower interest rates.
Compound interest allows funds to grow at a faster rate than they would in an account with a simple interest rate. Compound interest include calculating the annual percentage yield, the annual rate of return or the annual cost of borrowing money. The cost of compound interest is not always apparent and if investments are not managed, making interest payments can cost money. Simple interest is calculated based on the principal amount and the earned interest is not compounded.
C gains less interest than A.
The higher the interest rate, the more money earned or the more money owed.
14. Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of
40.0 m/s.
Answer:
200,000 JExplanation:
The kinetic energy of an object can be found by using the formula
[tex]k = \frac{1}{2} m {v}^{2} \\ [/tex]
m is the mass
v is the velocity
From the question we have
[tex]k = \frac{1}{2} \times 1000 \times {40}^{2} \\ = 500 \times 400[/tex]
We have the final answer as
200,000 JHope this helps you
Hello!!
Sorry to contradict the before answer, but he's wrong.
The formula is correct:
k = 1/2 * mv²
If we replace it with our data:
k = 1/2 * (1000 kg) (40 m/s)²
Here is the problem, 40^2 is = 1600, so the result is wrong:
k = 500 Kg * 1600 m²/s²
And if we resolve it:
k = 800 000 Joules
Then the kinetic energy of the roller coaster car is 800 000 Joules.
Match the terms to their definition.
1. meter
reference point from which all other measurements are made.
2. metric system
the basic measure of length in the metric system
3. milli-
to be aware through the senses.
4. perceive
prefix meaning one-thousandth (.001).
5. standard unit
a decimal system of weights and measures
meter = the basic measure of length in the metric system
milli- = prefix meaning one-thousandth (.001)
percieve = to be aware though the senses
standard unit = reference point from which all other measurements are made
metric system = a decimal system of weights and measures
Which statement describes all chemical changes but not all physical changes.
Answer:
burning, cooking, rusting, and rotting.
Explanation:
Answer:
what are the statements so i can help just comment and i will get back to you
Explanation:
How does an object gain potential energy
A) by melting
B) by gaining speed
C) by cooling to a lower temperature
D) by being raised above the ground
Answer:
d
Explanation:
Answer:
D
Explanation:
Gravitaional potential energy is energy that is stored by moving an object to a greater height above the ground.
im not sure if its right, but i tried :)
What sport was inspired by basketball adapted for older adults who were still interested in being physically active
Answer:
shes right, I just took the test
Which is an example of convection currents
Marshmallows toasting over a campfire
A pot being heated by an electric burner
Feet getting hot when stepping across sand
A radiator emitting want air and drawing in cool air
Answer:
A radiator emitting warm air and drawing in cool air is an example of convection current
Explanation:
I am guessing you meant "A radiator emitting warm air and drawing in cool air'
Answer:
A radiator emitting warm air and drawing in cool air
Explanation:
Help Please fast like now!!
Answer: d. availability of places to play
Explanation: I think that it’s d because availability of space to do your physical activity is important. Availabilty of places to play is an environmental factor due to where you decide to play.
Which of these is a biotic factor?
Answer:
animals, plants, trees, grass, bacteria, moss, or molds
Explanation:
Anything that is a living organism is a biotic factor
