1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Novay_Z [31]
3 years ago
10

On the earth, when an astronaut throws a 0.250-kg stone vertically upward, it returns to his hand a time T later. On planet X he

finds that, under the same circumstances, the stone returns to his hand in 2T. In both cases, he throws the stone with the same initial velocity and it feels negligible air resistance. The acceleration due to gravity on planet X (in terms of g) is _______.a) g/. b) g/4. c) 2g. d) g/2. e) g.
Physics
1 answer:
Liula [17]3 years ago
4 0

Answer:

correct is d) a ’= g / 2

Explanation:

For this exercise let's use the kinematics equations

On earth

      v = v₀ - a t

     a = (v₀- v) / T

On planet X

    v = v₀ - a' t’

    a ’= (v₀-v) / 2T

Let's substitute the land values ​​in plot X

     a’= a / 2

Now let's use Newton's second law

       W = ma

      m g = m a

      a = g

We substitute

      a ’= g / 2

So we see that on planet X the acceleration is half the acceleration of Earth's gravity

You might be interested in
For a particular reaction, the change in enthalpy is 51kJmole and the activation energy is 109kJmole. Which of the following cou
Ronch [10]

Answer

given,

change in enthalpy = 51 kJ/mole

change in activation energy = 109 kJ/mole

when a reaction is catalysed change in enthalpy between the product and the reactant does not change it remain constant.

where as activation energy of the product and the reactant decreases.

example:

ΔH = 51 kJ/mole

E_a= 83 kJ/mole

here activation energy decrease whereas change in enthalpy remains same.

5 0
3 years ago
How does the shape and size of the continents today help support the Theory of Continental Drift?
astraxan [27]

The size and shape of the continents help support the continental drift because they all most fit together like puzzle pieces
4 0
3 years ago
Two froghoppers sitting on the ground aim at the same leaf, located 35 cm above the ground. Froghopper A jumps straight up while
evablogger [386]
Frog hopper B❤️recent emojis
3 0
3 years ago
Read 2 more answers
Carbon monoxide (CO) _____.
bekas [8.4K]
A. It is a compound made of oxygen and carbon
3 0
3 years ago
Read 2 more answers
A soccer player kicks a ball, applying a force of 1,000 newtons over a distance of 0. 2 meter. The ball travels 50 meters down t
Fed [463]
500 i think i’m wrong though
8 0
2 years ago
Other questions:
  • Vhich best describes the act of using senses or tools to gather information?
    9·1 answer
  • A cosmic-ray proton in interstellar space has an energy of 59 MeV and executes a circular orbit with a radius equal to that of M
    8·1 answer
  • which tool would you use to measure the amount of rainfall? a. graduated cylinder b. stopwatch c. scale d. thermometer
    11·2 answers
  • A ball is ejected to the right with an unknown horizontal velocity from the top of a pillar that is 50 meters in height. At the
    15·2 answers
  • A rock is tossed straight up from ground level with a speed of 22 m/s. When it returns, it falls into a hole 9.0 m deep. a. What
    9·1 answer
  • This chapter discusses that light sometimes acts like a photon. What is a photon?
    7·1 answer
  • 2.List two changes an unbalanced force can cause.
    5·1 answer
  • Identify a source of microwaves
    15·2 answers
  • As the wavelength of a wave increases on the electromagnetic spectrum,
    9·2 answers
  • If someone weighs 80n on Mars and comes back on earth will they weigh the same
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!