What happened to a apple's weigh as the plane rose up toward the sky?

Answers

Answer 1

Answer:
Okay, I don't know if this question is supposed to be a trick question or not. The weight of the apple does not change as the plane travels up the atmosphere, but the MASS changes. Weight doesn't change no matter what environment you're in, but the mass changes in different environments. In this case, the weight is constant but the mass is decreasing as you go higher up.

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you measure that it takes 0.75 seconds for a leaf to fall from a tree to the ground. the leaf experiences air resistance as it falls. if there were no air resistance, how long would it take the leaf to fall?

Answers

There's not enough information given in the problem to calculate that answer.

A leaf falling from a tree on Earth, a sheet of printer paper falling off the back
of a truck on Venus, and a steel ball sinking through a bucket of Scotch whiskey
on Mars, might all reach the bottom in 0.75 second. The time it would take each
of them to fall the same distance through a vacuum in the same place would be
different, and the 0.75 second is not enough to enable you derive it ... even if
you did know the acceleration of gravity in each place. All you can say is that
without resistance, it would fall faster, and hit bottom in less than 0.75 second.

Answer:

less than 0.75 seconds

Explanation:

The freezing point of water is the same as its a. melting point. b. boiling point. c. sublimation point. d. evaporation point.

Answers

Answer: melting point.

Explanation:

Freezing point is the temperature at which liquid phase changes to solid phase. Freezing point of water is $0^0C$ .

$H_2O(l)\rightarrow H_2O(s)$

Melting point is the temperature at which solid phase changes to liquid phase. Melting point of water is $0^0C$ .

$H_2O(s)\rightarrow H_2O(l)$

Melting and freezing are reversible processes which takes place at $0^0C$ for water.

Boiling point is the temperature at which vapor pressure of the liquid becomes equal to atmospheric pressure.

Sublimation point is the temperature at which gaseous phase changes to solid phase.

Thus the freezing point of water is the same as its melting point.

The freezing point of water is the same as its melting point. (option a)

The freezing point of a substance refers to the temperature at which it changes from a liquid state to a solid state. In the case of water, this is when it turns from liquid water into ice. It's crucial to note that the freezing point of a substance is the same as its melting point, which is the temperature at which the solid changes back into a liquid. So, the answer is option a. The freezing point of water is the same as its melting point.

Hence the correct option is (a).

To know more about freezing point here

brainly.com/question/31357864

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The wavelengths for visible light rays correspond to which of these options?A.
about the size of a pen
B.
about the size of a virus or a large molecule
C.
about the size of an amoeba
D.
smaller than an atom
E.
about the size of a football field

Answers

Answer:

this is the correct answer

Explanation:

Answer:

sorry about the other person but its b

Explanation:

What is the kinetic energy of a 30 kg falling object when the object reaches a velocity of 20 m/s?

Answers

Ek = 1/2mv^2 Ek = 1/2 * 30kg * 20^2 m/s Ek = 6000J Hope this Helps!

As a result of mitosis, the cels of a Molecular organism sure which of these properties select to correct answers. A. All cells have the same number of chromosomes. B. The number of chromosomes varies amongst the cells C. All cells have identical genetic information. D. Genetic information varies among the cells.

Answers

Answer:

C. All cells have identical genetic information.

Answer:

A and C

Explanation:

Assume a hydro power plant with 85% efficiency and 30m head. It is measured that 60 kg of water passes through the turbine in 1 s. What is the output electrical power of this power plant? a) less than 1 kW
b) between 1 kW and 10 kW
c) more than 10 kW

Please show calculations!

Answers

The potential energy of each kg of water, before it falls, is

   (M G H) = (1kg) (9.8 m/s²) x (30 m) = 294 joules

The potential energy lost by 60 kg of water pouring through is

(60 x 294) = 17,640 joules

The power output of the plant is

   (17,640 joules/sec) x (85%) = 14,994 watts
   = almost but not quite 15 kW.

(If you used 10 for gravity, it would come out to 15.3 kW)

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In a ballistic pendulum experiment, projectile 1 results in a maximum height h of the pendulum equal to 2.6 cm. A second projectile (of the same mass) causes the the pendulum to swing twice as high, h2 = 5.2 cm.The second projectile was how many times faster than the first?

A force is applied to a 30-kg object, resulting in an acceleration of 15 m/s. What is the force being applied to the object?