It has to overcome friction and air resistance in order for your balloon car to start to move
What is a balloon car?
For balloon-powered car, the contracting balloon pushes the air in the balloon backwards. That means the air in the balloon is pushing balloon forwards. The balloon is joined to car, so the car rolls. The motion is nothing to do with pushing on the air behind car.
There are two main forces acting on balloon rocket car: Friction and Air resistance. The friction force is resistance between two objects sliding against each other. While building your car identify places where objects will be rubbing against each other creating friction. In order to get car to move, we need an unbalanced force. In other words, the force of air coming out of balloon must overcome the forces acting on the car. We will want to reduce friction and air resistance to help your car move.In the case of balloon car, the action is the air rushing out of the balloon, pushing against air behind the car. The opposite or equal reaction is that the air behind car pushing against the car with the same force, causing the car to propel forwards.The weight of car is too great and nothing moves: As the car weight increases, friction between axle and straw, wheel and axle, and wheel and floor increase. There comes a point where the forces from friction are greater than the force from air blowing out the balloon.Learn more about balloon car at https://brainly.com/question/13293570
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Octane is a component of gasoline. It reacts with oxygen, O2 , to form carbon dioxide and water. Is octane an element or a compound? How can you tell?
Octane is a compound since it is composed of more than two elements of the periodic table.
What is octane?Octane is a linear hydrocarbon made up of hydrogen and carbon molecules, which makes it an organic molecule. Octane will be part of the composition of gasoline. The quality of the gasoline is measured by the octane number, the more octane there is, the higher the octane number and the better the quality of the gasoline.
It is a compound since it is said to be if it is made up of more than two elements from the periodic table. The elements of the compound cannot be separated by physical processes such as filtration or decantation, but only by chemical processes.
Therefore, we can confirm that octane is a compound since it is composed of more than two elements of the periodic table.
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(please help answer with solution 50 points)
A golfer can hit a golf ball a horizontal distance of over 300 m on a good drive What maximum height will a 301.5 m drive each if it is launched at an angle of 25.0" to the ground? (Hint: At the top of its flight, the ball's vertical velocity com ponent will be zero.)
The maximum height of the ball is 35.1m.
Solution:
The angle of launch, theta = 25 degree
Let the initial velocity of launch be u
For a horizontal range , R = 301.5 m = u^2 * sin(2*theta) /g
301.5 = u^2 * sin(2*25) /9.81
u = 62.14 m/s
The maximum height , hm = (u * sin(theta))^2 /2g
hm = (62.14 * sin(25) )^2 /(2*9.81) m
hm = 35.1 m
At its highest point, the vertical velocity is zero. As the object falls toward the Earth its vertical velocity increases again, but points in the opposite direction to its initial vertical velocity. This is because gravity acts vertically downward, causing deceleration and making the vertical component of velocity zero. Projectile Motion for Vertical Velocity Calculator is an online tool for calculating the vertical velocity of particles in projectile motion.
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A 4 kilogram object accelerates at 2.5 m/s2. What is the net force in Newtons of the object?
The net force in Newtons of the object is 10N.
Solution:
m1 = 4kg
a = 2.5m/s²
Force m = ma
F = 4 * 2.5 = 10N.
The greater the net force acting on an object the greater its acceleration. Newton's second law of motion summarizes these relationships. We can rewrite the acceleration equation above to find the net force. The net force on an object is the combined effect of all compressive and tensile forces actually acting on the object.
When the forces pushing or pulling an object are unbalanced the object accelerates in the direction of the net force. The net force is the sum of all the individual forces acting on an object. Newton's first law can be viewed as a special case of Newton's second law when the net force F is zero. The acceleration must also be zero.
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A round stone rolls towards the edge of 21 meter cliff. As it reaches the edge of the cliff,
it is moving forward with a speed of 6.7 m/s. How far, horizontally, from the cliff face
will the rock land?
Answer:
13.9 m
Explanation:
Find time to fall vertically from 21 m to ground then multiply this TIME by the horizontal rate of 6.7 m/s
d = 1/2 a t^2
21 = 1/2 (9.81) t^2 shows t = 2.069 s
2.069 s * 6.7 m/s = 13.9 m
According to the psychoanalytic perspective a personality personality is based on
The psychoanalytic perspective states that a personality is based on the childhood experiences as well as unconscious mind.
What do you mean by psychoanalytic perspective?
In English, the terms psychoanalytic and psychoanalytical are employed. The latter phrase, which is older, originally just meant "related to the investigation of the human psyche." However, both titles evolved to refer to that as psychoanalysis became recognized as a separate therapeutic discipline. Even while both are still in use, psychoanalysis is the more common descriptor nowadays. Humans are defined as having sexual and violent urges from the perspective of a psychoanalytic lens.
Psychoanalytic theory of personality: a psychoanalytic approach that focuses on each person's unconscious thoughts, beliefs, and memories. It says that these traits affect our personalities and behaviors.
The three level of consciousness are:
Consciousness
According to Freud, every human has a conscious mind that stores all of the information they are aware of about their surroundings. Any ideas, emotions, or even easily recalled memories are all included in the conscious mind. It's all we already know and are conscious of.
Preconsciousness
The level immediately beneath aware is known as preconscious. Everything that is not in the conscious mind but may very simply be recalled and become conscious is included in the preconscious mind.
Unconsciousness
The unconscious mind is the third and last degree of consciousness. Anything that is suppressed, seems to have been forgotten, or any emotion or thought that is not conscious is what is known as the unconscious mind. This could include mistreatment or bullying of children toward their parents.
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