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
Leya [2.2K]
3 years ago
5

The moons of Mars, Phobos (Fear) and Deimos (Terror), are very close to the planet compared to

Physics
1 answer:
katrin2010 [14]3 years ago
3 0

Answer:D- 0.2528

Explanation:

T=(Rp/Rd)^3/2

T=(9378/23459)^3/2

T=0.2528

The answer is D

You might be interested in
A bucket of mass m is hanging from the free end of a rope whose other end is wrapped around a drum (radius R, mass M) that can r
mr Goodwill [35]

Answer:

Explanation:

Let T be the tension .

Applying newton's second law on the downward movement of the bucket

mg - T = ma

On the drum , a torque of TR will be acting which will create an angular acceleration of α in it . If I be the moment of inertia of the drum

TR = Iα

TR = Ia/ R

T =  Ia/ R²

Replacing this value of T in the other equation

mg - T = ma

mg - Ia/ R²  = ma

mg =  Ia/ R² +ma

a ( I/ R² +m)= mg

a = mg / ( I/ R² +m)

mg - T = ma

mg - ma  = T

mg - m x mg / ( I/ R² +m) = T

mg - m²g / ( I/ R² +m ) = T

mg - mg / ( 1 + I / m R² ) = T

b ) T =  Ia/ R²

I = TR² / a

c ) Moment of inertia of hollow cylinder

I = 1/2  M ( R² - R² / 4 )

= 3/4 x 1/2 MR²

= 3/8 MR²

I / R² = 3/8 M

a = mg / ( I/ R² +m)

a = mg / ( 3/8 M + m )

T =  Ia/ R²

= 3/8 MR² x mg / ( 3/8 M + m ) x 1 /R²

= \frac{3mMg}{(3M +8m)}

7 0
3 years ago
Hi i need help pls help me
r-ruslan [8.4K]
The correct answer would be the last one
4 0
3 years ago
Read 2 more answers
Needing the answers ... i’ll make you brainliest ! Thank you✅
otez555 [7]

1) 4°C : It has the highest density as shown on the graph.

2) Water expands when it freezes, making it less dense than just water.

3) The ice would sink to the bottom, then the rest of the water would freeze as well, the entire lake/river/whatever will freeze eliminating the organisms that live there.

7 0
3 years ago
Bond formed when one or more electrons are transferred from one atom to another. True or False
Finger [1]

Answer: true

Explanation:

8 0
3 years ago
How can the frequency with which the direction of a current changes be regulated?
sesenic [268]

Answer:

In an inductive circuit, when frequency increases, the circuit current decreases and vice versa.

Explanation:

5 0
3 years ago
Other questions:
  • A freight car moves along a frictionless level railroad track at constant speed. The freight car is open on the top. A large loa
    10·1 answer
  • Suppose you want to use this human engine to lift a 2.35 kg box from the floor to a tabletop 1.30 m above the floor. How much mu
    14·1 answer
  • How many atoms are there in 3.4moles if helium ,show the calculation
    8·1 answer
  • You are conducting an experiment inside an elevator that can move in a vertical shaft. A load is hung vertically from the ceilin
    15·1 answer
  • WILL GIVE BRAINLIEST!
    5·2 answers
  • If your weight is force created by gravity on your body, and therefore is the Earth pulling you down, what is the reaction force
    6·1 answer
  • Which of the following are similarities between nuclear reactors and nuclear
    15·2 answers
  • What is the average temperature of the city, 89.6 Fahrenheit, on the Celsius scale?
    7·1 answer
  • Which describes one event that causes an eclipse?
    5·1 answer
  • What is an Alternative fuel?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!