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
crimeas [40]
3 years ago
11

Two objects, one with a mass of and the other with a force of 30.0kg experience a gravitational force of attraction of 7.50 * 10

^- 8 N how far apart are centers of mass?

Physics
1 answer:
nydimaria [60]3 years ago
8 0

Answer:

Explanation:

The formula for this is

F_g=\frac{Gm_1m_2}{r^2} where F is the gravitational force, G is the gravitational constant, m1 is the mass of one object and m2 is the mass of the other object. We are looking for r, the distance between the centers of their masses.

Filling in:

7.5*10^{-8}=\frac{6.67*10^{-11}(90.0)(30.0)}{r^2} and moving things around to solve for r:

r=\sqrt{\frac{6.67*10^{-11}(90.0)(30.0)}{7.5*10^{-8}} } Doing all that and rounding to the 3 sig fig's you need gives us a distance of 1.55 m

You might be interested in
The frequency of the second harmonic of a certain musical instrument is 100 Hz. What is the fundamental frequency of the instrum
ruslelena [56]
The harmonic frequency of a musical instrument is the minimum frequency at which a string that is fixed at both ends in the instrument may vibrate. The harmonic frequency is known as the first harmonic. Each subsequent harmonic has a frequency equal to:
n*f, where n is the number of the harmonic and f is the harmonic frequency. Therefore, the harmonic frequency may be calculated using:
f = 100 / 2
f = 50 Hz
4 0
3 years ago
A body starts from rest and travels ‘s’ m in 2nd second, than acceleration is.
Lana71 [14]

Answer:

3m

Explanation:

3 0
2 years ago
Can the boiling point of water exceed 100c
lisabon 2012 [21]
Superheated water is liquid water under pressure at temperatures between the usual boiling point, 100c (212 F ) and the critical temperature , 374 C (705F) . It is also known as “subcritical water”
Or “pressurized hot water”.
6 0
3 years ago
All objects emit ______ radiation?<br> A-electromagnetic<br> B-kinetic<br> D-solar
natulia [17]
A, electromagnetic radiation
6 0
3 years ago
An airplane has a momentum of 8.55 x 107 kg.m/s[S] and a velocity of 900 km/h[S]. Determine the mass of the airplane.
kow [346]

Answer:

342,000kg

Explanation:

p=mv

8.55*10^7 kg*m/s=m(900 km/h)

85,500,000 kg*m/s=m(900 km/h)

(85,500,000 kg*m/s)/(900 km/h)=m

Get same units.... 900km/h = 250m/s

m/s cancel in the division, you are left with just kg!!

85,500,000/250=342,000kg! That's it!

6 0
2 years ago
Other questions:
  • Describe the energy transformations that occur from the time a skydiver jumps out of a plane until landing on the ground.
    9·2 answers
  • Which characteristics can be used to differentiate star systems? Check all that apply.
    13·2 answers
  • A scientist studies the effect of adding different amounts of salt on the boiling point of water. He places his results in the g
    9·2 answers
  • The revenue (in dollars) for selling q items is given by R ( q ) = 348 q − 2 q 2 and the costs (in dollars) of producing q items
    5·1 answer
  • PLZZZ HELP!!! What is the main difference between a permanent magnet and a temporary magnet?
    14·2 answers
  • When describing image formation in mirrors, what is the angle of incidence?
    6·2 answers
  • 1. Sam walked 4 meters north, 5 meters east, and 4 meters south. What is his
    7·1 answer
  • What practical function is provided by the ionosphere? Produces auroras charges atoms heats oxygen and nitrogen permits worldwid
    9·1 answer
  • I'll mark brainliest
    12·1 answer
  • The diagram below shows how sunlight is radiated back into the Earth's atmosphere as heat (infrared radiation).
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!