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
kotegsom [21]
3 years ago
5

HELLPPP NOWWA!!!!!!!!!!!!

Physics
2 answers:
elena55 [62]3 years ago
8 0

Answer:

it would be a

Explanation:

i remeber taking the test im pretty sure its a

prisoha [69]3 years ago
7 0

Answer:

b

Explanation:

the gravitational pull also helps with that but

You might be interested in
A rocket in deep space has an empty mass of 220 kg and exhausts the hot gases of burned fuel at 2500 m/s. What mass of fuel is n
Scilla [17]

Answer:

Explanation:

Let fuel is released at the rate of dm / dt where m is mass of the fuel

thrust created on rocket

= d ( mv ) / dt

= v dm / dt

this is equal to force created on the rocket

= 220 dv / dt

so applying newton's law

v dm / dt = 220 dv / dt

v dm = 220 dv

dv / v = dm / 220

integrating on both sides

∫ dv / v    = ∫ dm / 220

lnv =  ( m₂ - m₁ ) / 220

ln4000 - ln 2500 = ( m₂ - m₁ ) / 220

( m₂ - m₁ ) = 220 x ( ln4000 - ln 2500 )

( m₂ - m₁ ) = 220 x ( 8.29  - 7.82 )

= 103.4 kg .

8 0
3 years ago
How do you solve e from the equation f=e/s
Andrej [43]
1738 Fetty wap bhsyfnd hdnchd hand hdnzudnusjd jdnshdkdndb hdkcnd
7 0
3 years ago
The concentration of an acid or base refers to how completely it dissociates in
Novosadov [1.4K]

Answer:

False

Explanation:

The Concentration of Acid or Base is the ph of the solution.

6 0
3 years ago
A 72.8-kg swimmer is standing on a stationary 265-kg floating raft. The swimmer then runs off the raft horizontally with a veloc
nalin [4]

Answer:

-1.43 m/s relative to the shore

Explanation:

Total momentum must be conserved before and after the run. Since they were both stationary before, their total speed, and momentum, is 0, so is the total momentum after the run off:

m_sv_s + m_rv_r = 0

where m_s = 72.8, m_r = 265 are the mass of the swimmer and raft, respectively. v_s = 5.21 m/s, v_r are the velocities of the swimmer and the raft after the run, respectively. We can solve for v_r

265v_r + 72.8*5.21 = 0

v_b = -72.8*5.21/265 = -1.43 m/s

So the recoil velocity that the raft would have is -1.43 m/s after the swimmer runs off, relative to the shore

7 0
3 years ago
Resistance independent to : a. Shape b. Size c. Physical state d. None
lesantik [10]

Answer:

d.none

Explanation:

because shape size and physical actually do are dependant

7 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the average speed of an automobile that travels 60km east and then 80km north in two hours
    9·1 answer
  • A coin dropped from the top of a precipice (cliff) takes 2.42 to hit the ground. How highis the precipice (cliff)? .
    9·1 answer
  • Humans start from a single cell. Eventually, as cells divide, they start to differentiate, or specialize. Some cells are special
    8·1 answer
  • An engineer is working on a new kind of wire product that is about the size of a bacterium cell. Which kind of technology is the
    7·2 answers
  • Which quantity can be calculated using the equation E = mc2?
    5·2 answers
  • How did early photosynthetic organisms change Earth’s atmosphere?
    8·1 answer
  • How are the raincoats waterproof? explain​
    13·1 answer
  • I REALLY NEED HELP!!!!
    11·1 answer
  • Which model could represent a neutral atom of boron?
    9·2 answers
  • A ball with a mass of 2.00 kg is dropped from a height of 10.0 m. 2kg 10 m How long will it take to hit the ground?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!