after the box has left the rubber band but is still moving upward, what is the passenger's apparent weight?
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If the upward acceleration is equal to the acceleration due to gravity (), then the apparent weight would be zero, indicating that the passenger is experiencing weightlessness or is in a state of free fall.
When the box has left the rubber band but is still moving upward, the passenger's apparent weight would be less than their actual weight.
The apparent weight of an object is the force exerted on it by a supporting surface, which in this case is the floor of the box. It is equal to the normal force acting on the object.
As the box accelerates upward, there are two main forces acting on the passenger: the gravitational force (weight) pulling them downward and the normal force pushing them upward. The normal force is responsible for providing the upward acceleration to the passenger.
Since the passenger is moving upward, the normal force exerted by the floor must be less than their actual weight to create the net upward force necessary for upward acceleration. Therefore, the passenger's apparent weight is reduced.
The exact value of the apparent weight depends on the magnitude of the upward acceleration and the mass of the passenger. The apparent weight can be calculated using the equation:
Apparent weight = Actual weight - (Mass of passenger * Magnitude of upward acceleration)
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Jake designed an experiment to demonstrate a solar eclipse. The steps of the experiment are listed below. Place a light bulb on a stand. Stick a pencil into a small styrofoam ball. Switch on the light bulb and darken the room. Stand with your back towards the light bulb. Hold the pencil with styrofoam ball in front of you at arm's length. Jake's experiment has a flaw. Which of these statements best describes a method to correct the flaw in Jake's experiment? A) Stand facing the light bulb. B) Replace the light bulb with a candle. C) Use a big globe instead of styrofoam ball. D) Clamp the styrofoam ball behind the light bulb.
Kinetic energy is dependent on which of the following?
What is it called when air particles spread apart?
a. ocean waves
b. UV rays
C. Laser
d. X-rays
e. microwave
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b. False
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False
Hope i helped!!
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Answer:
Boiling is the "rapid vaporization of liquid" when the liquid is heated at the point where the pressure of the vapor is equal to the pressure exerted by the atmosphere in the liquid.
So during the boiling, the vaporization of the water is also occurring but is a little bit more complex.
Some questions that you may ask your friend to differentiate those two phenomena are:
Which one is used to cook things like pasta? (boiling)
in which process, a liquid is transformed into a gas? (evaporation)
Which one includes the other? (boiling)
Final answer:
Evaporation and boiling are both phases changes, but they differ in the specifics of how and when they happen. These differences involve the temperature and location within the liquid where they occur, as well as the speed of the process.
Explanation:
To differentiate between evaporation and boiling, you could ask your friend these questions:
- Does the process occur at any temperature or only at a specific temperature (the boiling point)? (Evaporation can occur at any temperature while boiling only occurs at the boiling point.)
- Does the process occur throughout the liquid or only at the surface? (Boiling occurs throughout the liquid while evaporation happens only at the surface.)
- Is the process slow or fast? (Evaporation is a slow process while boiling is relatively quick.)
By asking these questions, your friend will be able to identify the key differences that separate evaporation from boiling.
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B) forced
C) matched
D) selective
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Answer:
D) selective
Explanation:
The selective placement in the adoption studies refers to practice by which the adoption agencies tend to match some definite characteristics of the adopted child's adopted parents than that of child's biological parents.
It results in the correlation of the environments between the biological relatives raised in two different homes.
For example, when the child is placed in a home which is similar to the home of the biological parents.
Answers
Explanation:
time spent to run from house to school=100/5=20s
time spent to return from school=100/10=10s
average velocity=200m/(10+20)
- =6.66m/s