At what time were the racers at the same position?
O 15
O 3s
O 5s
0 4s

Answer:

The most significant difference between the static and current electricity is that in static electricity the charges are at rest and they are accumulating on the surface of the insulator. Whereas in current electricity the electrons are moving inside the conductor.

Answer:

Weight and Mass !!!!!!

Explanation:

Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together. Air resistance causes the feather to fall more slowly.

Answer:

The input force is the force that when you push down and the output force is the stable going into the paper.

Explanation:

I really hope this helps ;)

Answer: yes

Explanation:

because so

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Work Shown:

velocity = (change in distance)/(change in time)

velocity = (200.0 meters)/(19.32 seconds)

velocity = (200.0/19.32) meters per second

velocity = 10.351966873706 meters per second

velocity = 10.35 m/s  after rounding to 4 sig figs

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Momentum = (mass)*(velocity)

Momentum = (77 kg)*(10.35 m/s)

Momentum = (77*103.5) kg m/s

Momentum = 796.95 kg m/s

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Edit: Corrected from 2000.0 to 200.0

Explanation:

That`s is the answer, just check

Answer:

Mars and venus have similar atmospheres

Answer:

Earth and Venus have similar atmospheres

Explanation:

Answer: The answer would be 454 miles.

Explanation: You multiply the average speed by time travelled

Answer:

Explanation:

According to Newton's third law of motion, every action has an equal and opposite reaction. When a rocket starts, it releases some gases which exerts and equal and opposite force which helps the rocket to move.

Hope this helps

plz mark as brainliest!!!!!!

Answer:

Average speed of the car is 36.36 miles per hour

Explanation:

It is given that,

Total distance traveled by the car, d = 200 miles

Total time taken, t = 5.5 hours

In this case, we have to find the average speed of the car. Average speed of the car is defined as the total distance divided by total time taken. Mathematically, it can be written as :

s = 36.36 miles per hour

Hence, the average speed of the car is 36.36 miles per hour.  \

Answer:

Kilogram and symbol kg.

If a  car moving at 30 m / s has 900 kJ of kinetic energy, then the mass of the car would have been 2000 kilograms.

Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total stored energy in the system which is represented by total potential energy.

As for the given problem, we have to find out the mass of the car if the car moving at 30 m/s has 900 kJ of kinetic energy.

Kinetic energy = 1 / 2 m v²

         900000 = 0.5 × m × 30²

                    m = 1000 / 0.5

                        = 2000 kilograms

Thus, If a  car moving at 30 m / s has 900 kJ of kinetic energy, then the mass of the car would have been 2000 kilograms.

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Time = (distance) / (speed)

Time = (26 meters) / (8 meters/hour)

Time = 3.25 hours or 3 hours 15 minutes

Answer:

He needs to throw the trash before he gets to the Trash can because he

needs some force for it to be able to go in because it he throw it after he passed it, it would not make it because your going a certain speed, and if you try to throw it when it is right in front of you, it will still miss because it is still going the same speed as the car.

Explanation:

Hope that helps you :)

Answer:

If the force on a cart doubles, the acceleration of the cart doubles.

Explanation:

For this problem, we need to consider the following equation:

Force = Mass x Acceleration

We can reasonably assume that the cart will have constant mass in the given force system.  With this assumption we can say the following relationship:

Force is directly proportional to Acceleration within the system.

Given that our force on the cart is doubled, then our acceleration of the cart must also be doubled.  You can mathematically express this as follows:

F = MA

2F = M * 2A

Hence, if force doubles, the acceleration doubles.

Cheers.

Answer:

To strike or crash into with resounding impact. To collide or strike with great force. Used to indicate the sound of a forceful blow or collision.

Answer:

To strike or crash into with resounding impact. To collide or strike with great force. Used to indicate the sound of a forceful blow or collision.

Explanation:

Pollination is the transfer of pollen for plant fertilization

The correct responses are as follows;

The description of the changes that take place is included in this response

6 (i) The circuit arrangement is a parallel circuit arrangement

(ii) The advantages are;

(iii)  Lamp C glows the brightest

(iv) The total resistance is 4 Ω

The reason roe the above responses are as follows:

During the course of pollination, the pollen, through movement, finds it way to the germ-cell in the female ovary, where it fuses with the female egg (gamete) located inside the ovule

The resulting fertilization produces the zygote, which forms an embryo inside the ovule by dividing several times

A seed is formed from the ovule when it develops a tough coat, and by rapid growth a fruit is formed as the ovary matures

5 (i) The kind of combination, where all the wires that enters the bulb are joined on one side of the bulbs, and all the wires that comes from the bulbs are joined on the other end of the bulb, before joining the circuit is a parallel connection

(ii) The advantages of bulbs connected in parallel are;

(iii) The bulb that glows brightest is given by the bulb that consumes the most energy per unit time, and therefore, the bulb that has the most power

Power consumed by each bulb is given as follows;

Bulb A, [tex]P_A[/tex] = 3 A × 60 V = 180 W

Bulb B, [tex]P_B[/tex] = 4 A × 60 V = 240 W

Bulb C, [tex]P_C[/tex] = 5 A × 60 V = 300 W

Bulb D, [tex]P_D[/tex] = 3 A × 60 V = 240 W

The highest power used by a bulb is 300 W, by bulb C

Therefore;

Bulb C is the brightest bulb

(iv) The total resistance of the circuit is given as follows;

[tex]Total \ resistance =\dfrac{Circuit \ voltage}{Total \ current}[/tex]

Total current, [tex]I_{tot}[/tex] = 3 A + 4 A + 5 A + 3 A = 15 A

Circuit voltage, V = 60 V (Given)

Therefore, we have;

[tex]Total \ resistance =\dfrac{60 \, V}{15 \, A} = 4 \, \Omega[/tex]

The total resistance is 4 Ω

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Answer:

Explanation:

The momentum of an object given it's mass and velocity can be found by using the formula

From the question

mass = 0.25 kg

velocity = 15 m/s

We have

momentum = 0.25 × 15

We have the final answer as

Hope this helps you

Answer:acceleration

Explanation:

We define acceleration as the rate of change of velocity. So if a moving object wants to change its velocity, it needs to accelerate.

Thus the statement would be:

"If a race car wants to change its velocity then a net force is  required to cause the necessary acceleration".

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Acceleration defines how the velocity changes, suppose that you are in one dimension and you move with positive velocity, if you have also positive acceleration your velocity will increase.

If you have negative acceleration your velocity will decrease.

But if we go to 2 dimensions we can see that acceleration is way more complex, because it is what allows the changes of direction of motion (by changing the direction of the velocity).

Now, acceleration comes from Newton's second law of motion:

F = m*a

Force equals mass times acceleration.

Then if we know that a car wants to change its velocity, it needs to apply a force such that it causes the necessary acceleration to change the velocity as wanted.

From this we can see that the complete statement would be:

"If a race car wants to change its velocity then a net force is  required to cause the necessary acceleration"

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Answer:

Absolute strength = 1.25

Explanation:

Given:

Body weight of body = 120 lbs

Body weight of thing = 150 lbs

Find:

Absolute strength

Computation:

Absolute strength = Body weight of thing / Body weight of body

Absolute strength = 150 / 120

Absolute strength = 1.25

Answer:

The correct answers are Choices 'A' and 'B'.

Explanation:

The correct answers are Choices 'A' and 'B'.

Static equilibrium means that the object is not moving relative to ​a given frame of reference.

Choice 'A' Linear Momentum = →p=0

is required. "Not moving" means the velocity  

v must be 0(otherwise the object would be moving across the reference frame), so an object's linear momentum (which is its mass times its velocity) must be 0.

Choice 'B' Angular Momentum = →L=0 is required. "Not moving" also means that the object can not be rotating or spinning inside the reference frame, which means the rotational velocity ω must be 0. So an object's angular momentum (which is its mass times its rotational velocity) must be 0 .

Choice 'C' Change in Energy  is true (this is known as conservation of energy), but it is not a requirement of static equilibrium because "not moving" is not the same as "isolated."

There are many forms of energy, many of which are not related to movement. For example, a light bulb in a stationary lamp is in static equilibrium, but if the light is turned on .

Similarly, when you add gasoline to your car at a gas station, the car must be in static equilibrium, but the addition of the gasoline from outside the car changes the Total Energy of the car.

Choice 'D' Net Force ≠0 is a non-equilibrium condition because by Newton's second law of motion, so any non-zero net force will cause an acceleration, and acceleration is not a state of static (or dynamic) equilibrium.

d =200 m

Hi there !

Velocity formula

v = d/t => d = v×t

d = distance

t = time

d = 20m/s×10s = 200 m

Good luck !

It took a squirrel 0.50 s to run 5.0 m leftward when it reached the tree while maintaining a constant acceleration. The squirrel was running 15 m/s leftward when it reached the tree.

What was the squirrel's initial velocity?

Answer: -5

The initial velocity of the squirrel is 5m/s. Initial velocity is a vector quantity.

Acceleration is the rate of change of the velocity of an object with respect to the time. Acceleration is the vector quantity.

The initial velocity of the object can be calculated by the following equation:

s = 1/2 (u + v) t

5.0 = 1/2 (u + 15) × 0.50

10 = (u + 15) × 0.50

10 / 0.50 = (u + 15)

20 = (u + 15)

u = 20 - 15

u = 5m/s

Thus, the squirrel's initial velocity before getting startled is 5 meters per second.

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Answer:

The net force is 10 N.

Explanation:

A "net force" occurs when a particular object accelerates. It refers to the total number of forces that act on an object.

The boy pulling the cart and the other pushing it do their actions in the same direction. The force of pulling is 6 N while the force of pushing is 4 N. This means that the total force will not be cancelled.

To get the net force, add both forces since they are in the same direction (east).

Net force = 6 N + 4 N

Net force = 10 N (Newtons)

Answer:  Atoms are electrically neutral because they have equal numbers of protons (positively charged) and electrons (negatively charged). If an atom gains or loses one or more electrons, it becomes an ion.

Answer:Describe how scientists study the natural world. Explain ... In this way, scientists gradually build an increasingly accurate and detailed ... Science rests on evidence and logic, so it deals only with things that can be observed. ... This is a drawback, because it may make the observations difficult to interpret.

Explanation:

Answer:

Models

Explanation:

Answer:

Independent variable: method of teaching.

Dependent variable: summer sessions.

confound variable: improvement.

Explanation:

Independent variable is described as a variable that is being manipulated and changed in order to see its effect on the dependent variable. The dependent variable is directly affected by the independent variable.

The dependent variable is described as a variable that is being tested by an experimenter in particular research or experiment.

Confound variable is determined as a "third variable" in an experiment which is responsible for examining an already existing "cause-and-effect" relationship.

Summer in the northern

Winter in the southern

Answer:

electrons

Explanation:

it just does