of the following states of motion, the one which requires balanced forces is:
A: a decrease in speed in a straight line
B: an increase in speed in a straight line
C: constant speed in a straight line
D: a change in the direction of the motion

Answers

Answer 1
I believe it would be D a change in direction of motion
Answer 2

A balanced force is required for a change in the direction of the motion.

What is a force?

According to Newton's second law of motion, the force applied to a body is directly proportional to the product of mass and acceleration of the body.

Balanced forces

Balanced forces are those that are opposite in direction and equal in size. When forces are balanced there is no change in direction.

Thus, when there is change in direction, a balance force can be applied to cancel the change in direction of motion.

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Related Questions

14. Skeletal muscles always work in
what

Answers

When skeletal muscles contract, bones move. But how do muscles make your bones move? A voluntary muscle usually works across a joint. It is attached to both the bones on either side of the joint by strong cords called tendons. A tendon is a tough band of connective tissue that connects a muscle to a bone. Tendons are similar to ligaments, except that ligaments join bones to each other. Muscles move the body by contracting against the skeleton. When muscles contract, they get shorter. By contracting, muscles pull on bones and allow the body to move.

Hope this will you to understand the movement of the skeletal muscles

Answer:

ur mom fr tho it does everywhere also in the nose thighs gutes and your whole body

Explanation:

Plz help 200 pts


In the movie Black Panther, Wakanda's economy focuses on the production and use of a fictional metal known as vibranium, which has amazing chemical and physical properties. If this metal actually existed, where do you think the metal would be placed in the periodic table? What would be the elemental symbol?​

Answers

Answer:

We just know that the metal is called Vibranium.

to place something is the table   we need to know its atomic number and its mass. so if we can get that we can ans it.

Explanation:

Your attitude has no influence on how regularly you exercise.

Answers

Answer:

False

Explanation:

Answer: False

Explanation:

correct on edge✅

The specific heat capacity of oxygen is 918 J/kg °C. That means that it takes 918 J of energy to raise _____ kg of oxygen by 1°C. What number completes the sentence?

Answers

Answer:

In this case, the specific heat capacity of oxygen is 918 J/kg °C. That means that it takes 918 J of energy to raise 1 kg of oxygen by 1°C.

Explanation:

Specific heat is the amount of heat required to raise the temperature of a unit mass of a substance by one degree. Specific heat is also known as specific heat capacity or specific heat capacity.

In other words, it is defined as the amount of energy that we must contribute to increase its temperature.

The specific heat or heat capacity of a certain body is called by the letter "c".

The expression to calculate the specific heat of a substance is:

c = Q / m.Δt

where Q represents the heat energy transfer between the system and its environment, m the mass of the system and Δt the temperature variation to which it is subjected.

In this case, the specific heat capacity of oxygen is 918 J/kg °C. That means that it takes 918 J of energy to raise 1 kg of oxygen by 1°C.

The number that completes the sentence is 1 kg

What is specific heat capacity?

Specific heat capacity is the amount of heat required to raise 1kg of the substance by 1 °C or 1 K. The S.I unit of specific heat capacity is J/kg°C

The substance in question is oxygen.

From the question,

If the specific heat capacity of oxygen is 918 J/kg°C, It means that it takes 918 J of energy to raise 1 kg of oxygen by 1°C.

Hence, The number that completes the sentence is 1 kg.

Learn more about specific heat capacity here: https://brainly.com/question/21406849

hello I wanna know what is the Newton first is also called the law ​

Answers

Answer:

What is another name for the first law of motion? Why is it given that name? Law of inertia. Page 2. It is given that name because inertia is the tendency of an object to resist any change in its motion until an unbalanced force acts on it.

Explanation:

Calculate the horizontal force that must be applied to a 1,300 kg vehicle to give it an acceleration of 2.6 m/s² on a level road.

500 N

3,380 N

1,302.6 N

0.002 N

Answers

The answer is 3,380 N

The horizontal force must be applied to a vehicle of mass 1300 kg and of acceleration of 2.6 m/s² will be 3380 N. Hence, option B is correct.

What is Acceleration?

The rate of change in an object's velocity concerning time is known as acceleration in mechanics. The vector quantity of accelerations. The direction of the net force that is acting on an object determines its acceleration.

Since acceleration has both a magnitude and a direction, it is a vector quantity. Velocity is a vector quantity as well.

According to the question, the given values are :

Mass, m = 1300 kg

Acceleration, a = 2.6 m/s²

Force = 1300 × 2.6 m/s²

F = 3380 N.

So, the force applied will be, 3380 N.

To get more information about Acceleration :

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What is the acceleration of a 19 kg bike pushed with a force of 340 N? F = ma
A) 6460 m/s
B) 18 m/s2
C) 17.6 m/s2

Answers

Answer:

C

Explanation:

HELPPPPP it’s due in 10 minutes

The structural layer of the sun are shown in the cross-sectional diagram.


which layer represents the chromosphere?
A. c
B. d
C. e
D. f

Answers

Answer:

A.c

Explanation:

The chromosphere is above the photosphere, the visible "surface" of the Sun. It lies below the solar corona, the Sun's upper atmosphere, which extends many thousands of kilometers above the chromosphere into space. The plasma (electrically charged gas) in the chromosphere has a very low density.

In basic terms it is the 2nd one out from the core.

Answer: It’s probably A.c. The guy above did a bit too much to explain. lol

Explanation:

During the previous year, Zach's weather station measured 0.8 yards of rain. Express this amount in cm.​

Answers

Answer:

73.152cm

Explanation:

We have been given:

          0.8yards of rain

Problem, convert to cm = ?

Solution:

The problem deals with the conversion from one length dimension to another.

 So:

           1 yard   = 91.44 cm

     So   0.8 yards  = 0.8 x 9.44 = 73.152cm

The solution to this problem is 73.152cm

HELP PLEASE I NEED AN A FOR THIS TO PASS

Answers

Answer:

D: The velocity increases during the time periods labeled A and C

Explanation:

Since gravity pulls us down to Earth, it will pull down the ball faster when the ball is falling.

someone help me! you get 27 points if you get it right

Answers

Answer:

1. D

2. D

3. A

The reason why your body goes right and the car car goes left is because your body tries to stay where it was, which is on the right. Your upper body doesn't feel a force and because of that continues in the same direction. Your lower half is pulled out from under you by seat friction to the left, leaving you leaning to the right.

1. Find the momentum of an object of mass 5 kg with a velocity of 2 m/s. *
a. 2.5 kg.m/s
O b. 10 kg.m/s
c. 0.25 kg.m/s
d. 20 kg.m/s

Answers

Answer:

10kgm/s

Explanation:

Momentum = Mass * Velocity (both in standard units)

Momentum = 5 * 2 = 10kgm/s

Which of the following is not necessary for the creation of fossil fuels?
A. Organic matter
B Heat
C Pressure
D. Wind

Answers

Answer: I believe the answer is D. Wind.

Hope this helps! ^^

2. A sled with no initial velocity accelerates at a rate of 1.1 m/s down a hill. How
long does it take the sled to go 13 m to the bottom?

Answers

Answer:

Time, t = 4.862 seconds

Explanation:

Given the following data;

Initial velocity = 0

Acceleration = 1.1m/s²

Distance = 13m

To find the time, we would use the second equation of motion;

S = ut + ½at²

Substituting into the equation, we have;

13 = 0*t + ½*1.1*t²

13 = 0.55t²

t² = 13/0.55

t² = 23.64

Taking the square root of both sides, we have;

Time, t = 4.862 seconds

What acceleration is produced by a force of 250 N acting on a mas
25 kg?

Answers

Answer:

10m/s2

Explanation:

f=ma

f/m= a

or,250/25=a

or,10 = a

therfore, acceleration is produced 10m/s2

A monkey increases its gravitational potential energy by climbing to the top of a tree. What happens to that potential energy if he climbs back down halfway?

Group of answer choices


It would decrease by three fourths.


It would double.


It would remain the same.


It would decrease by half.

Answers

It would decrease by half

Answer:

it would decrease by half.

Explanation:

Cell with structures labeled A, B, and C
Cell with structures labeled A, B, and C
What structure represents a chloroplast in the cell?

Answers

The answer is A. :)
I agree as well the answer is A as well

the gravitational force produced between any two
objects kept at 2.5*10^km apart is 580N. at what distance
should they be kept so that the gravitational force becomes
half?​

Answers

Answer:

The two objects should be kept at a distance of [tex]3.535\times 10^{4}[/tex] kilometers.

Explanation:

From Newton's Law of Gravitation, gravitational force ([tex]F[/tex]), measured in newtons, between two objects is inversely proportional to the square of distance ([tex]r[/tex]), measured in meters. That is:

[tex]F \propto \frac{1}{r^{2}}[/tex] (1)

[tex]F = \frac{k}{r^{2}}[/tex] (2)

Where [tex]k[/tex] is the proportionality ratio, measured in newtons-square meter.

Now we eliminate the proportionality by constructing the following relationship:

[tex]\frac{F_{2}}{F_{1}} = \left(\frac{r_{1}}{r_{2}}\right)^{2}[/tex] (3)

If we know that [tex]\frac{F_{2}}{F_{1}} = \frac{1}{2}[/tex] and [tex]r_{1} = 2.5\times 10^{7}\,m[/tex], then the distance between the two objects so that gravitational force becomes half is:

[tex]\frac{1}{2} = \frac{(2.5\times 10^{7}\,m)^{2}}{r_{2}^{2}}[/tex]

[tex]r_{2}^{2} = 1.25\times 10^{15}\,m^{2}[/tex]

[tex]r_{2} = 3.535\times 10^{7}\,m[/tex]

[tex]r_{2} = 3.535\times 10^{4}\,km[/tex]

The two objects should be kept at a distance of [tex]3.535\times 10^{4}[/tex] kilometers.

2. If a spring has a spring constant of 400 N/m, how much elastic potential
energy is stored when the spring is stretched by 0.25 m?​

Answers

Answer:

The kinetic energy of a spring is equal to its elastic potential energy.

The elastic potential energy is 12.5N-m or 12.5 Joules.

Explanation:

[tex] = \frac{1}{2} k {x}^{2} \\ = \frac{1}{2} (400)( {.25)}^{2} \\ = 12.5[/tex]

The athlete at point A runs 150m east, then 70m west and then 100m east. Determine the resultant displacement of the athlete relative to point A

Answers

Answer:

180m to the east

Explanation:

Displacement is the distance traveled in a specific direction. It is a vector quantity with both magnitude and direction. Therefore, the start and finish position is very paramount.

  point A runs 150m east,

   70m west

  100m east

                                       150m

                --------------------------------------------------------→

                                                                   70m

                                                         ←---------------------

                                                                   100m

                                                         -----------------------------------→

The displacement of the athlete  = 150 - 80 + 100  = 180m to the east

Resultant displacement of the athlete will be "180 m (Towards east)".

According to the question,

Point A runs:

150 m (east)70 m (west)100 m (east)

Now,

The displacement will be:

= [tex]150-80+100[/tex]

= [tex]250-80[/tex]

= [tex]170 \ m \ (east)[/tex]

Thus the answer above is correct.

Learn more about displacement here:

https://brainly.com/question/21116279

A 58 kg counterweight on a trebuchet is raised to a height of 3.1 meters. Calculate how much potential energy it has

Answers

Answer:

1762.04J

Explanation:

Given parameters:

Mass of counterweight  = 58kg

Height  = 3.1m

Unknown:

Amount of potential energy  = ?

Solution:

The potential energy of a body is the energy due to the position of the body.

It is given as:

 Potential energy  = mass x acceleration due to gravity x height

So;

 Potential energy  = 58 x 9.8 x 3.1  = 1762.04J

How much force is needed to accelerate a 70 kg rider and her 200 kg
motor scooter at 4 m/s/s? (Include measurement label) *

Answers

Answer: f= mass×acceleration

They said t1he scooter so 200× 4

=800N

Explanation:

I am not that sure

A. A person does 5415J of work in 4.5 minutes, how much power, expressed in watts, rounded to the tenths place, was generated?
B. Calculate the potential energy of an object whose mass is 56.90kg when dropped from a height of 2150.cm. Round your answer to the nearest tens place.
C. Calculate the kinetic energy of an object with a mass of 355g moving at a velocity of 7.73 m/s. Round your answer to the nearest tenths place.
D. What is the total energy of a system with KE = 1368 J and a PE = 5782J? Express your answer in kJ.

Answers

Answer: I only have the answer for A, but still, the answer is 20.07.

Explanation: Because the number ends in a 15, round to the nearest tenth which is 20. So now the number is 5420. To get the Watts (W) you have to take 5420 and divide it by the time in seconds. 4.5 minutes in seconds is 270, so 5420 divided by 270 equals 20.07. So 20.07 is the answer.

HELP PLS 100 POINTS TAKING TEST RN


WHEN you look at the speedometer in a moving car, you can see the car's.

A.instantaneous speed.
B.average speed.
C.instantaneous acceleration.
D.average acceleration.
E.average distance traveled.?

Answers

Answer:

I think he answer is C but I could be wrong

Explanation:

brainliest plz

Answer:

d mark brainlyest

Explanation:

is it possible for an object to be in motion without any external force applied? justify

Answers

Newton’s first law is commonly stated as:
An object at rest stays at rest and an object in motion stays in motion.
However, this is missing an important element related to forces. We could expand it by stating:
An object at rest stays at rest and an object in motion stays in motion at a constant speed and direction unless acted upon by an unbalanced force.
By the time Newton came along, the prevailing theory of motion—formulated by Aristotle—was nearly two thousand years old. It stated that if an object is moving, some sort of force is required to keep it moving. Unless that moving thing is being pushed or pulled, it will simply slow down or stop. Right?
This, of course, is not true. In the absence of any forces, no force is required to keep an object moving. An object (such as a ball) tossed in the earth’s atmosphere slows down because of air resistance (a force). An object’s velocity will only remain constant in the absence of any forces or if the forces that act on it cancel each other out, i.e. the net force adds up to zero. This is often referred to as equilibrium. The falling ball will reach a terminal velocity (that stays constant) once the force of air resistance equals the force of gravity.

Hope this help

What was the long-term effect of the Northwest Ordinance of 1787?

Answers

Answer:

Established a government for the Northwest Territory, outlined the process for admitting a new state to the Union, and guaranteed that newly created states would be equal to the original thirteen states

Explanation:

Goooogle, so I hope this helps somewhat

Also, isn't this a History question? You put physics lol

m
Bcth drives cast at 30 , then slows to a stop at the red light. A graph of her velocity over time is shown below,
s
where castward is the positive velocity direction.
Velocity
30
A
20+
10+
MY
Pro
2
4
6
8
10
Time (s)
Pro
Теа
Which graph shows her acceleration over time?
Choose1

Answers

Answer:

question is not clear.......

In 2010, scientists obtained an image of an asteroid that was dangerously close to Earth. Which technology did the scientists likely use to capture the image?

GPS, because it uses satellites that provide position and velocity data
radio telescope, because it captures radio waves from space
MRI, because it uses magnets to produce a picture
submarine communication, because it uses LF radio waves

Answers

Answer:

radio telescope, because it captures radio waves from space

Explanation:

The technology the scientists used to capture the image is likely to be a radio telescope. This telescope is able to produce images from electrical signals transmitted by the radio waves the trail of the asteroid generates.

Telescope are used to study very far and distant bodies. So, due to their special design, it is the best instrument to use for this kind of study. The radio telescope picks radio waves produced from astronomical bodies in space.

Answer:

radio telescope, because it captures radio waves from space

Explanation:

Edge 2021



Determine the change in velocity between 2.0 to 6.0 seconds. ____

Group of answer choices

-1.6 m/s

-2.1 m/s

-9.5 m/s

Answers

Answer:

-2.1 m/seconds velocity

What are the factors of works?

Answers

Answer:

Explanation:

The seven factors are work load, family life, transportation, compensation policy and benefits, colleagues and supervisor, working environment and working condition and career growth.

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