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
GuDViN [60]
3 years ago
12

2. Write an expression for the work

Physics
1 answer:
JulsSmile [24]3 years ago
6 0

Answer:

work  done=Fs

Explanation:

F : force

s : displacement

by definition

You might be interested in
Atoms can join together to form ______ substance​
ELEN [110]

Answer:

Molecules

Explanation:

:)

7 0
3 years ago
An object weighs 32 newtons. What is its mass if a gravitometer indicates that g = 8.25 m/s?
Elan Coil [88]

Explanation:

weight=mass×g

32=mass×8.25

mass=

\frac{128}{33}  = 3.878kg

8 0
2 years ago
n deep space, sphere A of mass 47 kg is located at the origin of an x axis and sphere B of mass 110 kg is located on the axis at
Volgvan

Answer:

a)-1.014x 10^{-7J

b)3.296 x  10^{-7J

Explanation:

For Sphere A:

mass 'Ma'= 47kg

xa= 0

For sphere B:

mass 'Mb'= 110kg

xb=3.4m

a)the gravitational potential energy is given by

U_{i = -GMaMb/ d

U_{i= - 6.67 x 10^{-11} x 47 x 110/ 3.4 => -1.014x 10^{-7J

b) at d= 0.8m (3.4-2.6) and U_{i=-1.014x 10^{-7J

The sum of potential and kinetic energies must be conserved as the energy is conserved.

K_{i + U_{i= K_{f + U_{f

As sphere starts from rest and sphere A is fixed at its place, therefore K_{i is zero

U_{i= K_{f + U_{f

The final potential energy is

U_{f= - GMaMb/d

Solving for 'K_{f '

K_{f = U_{i + GMaMb/d => -1.014x 10^{-7 + 6.67 x 10^{-11} x 47 x 110/ 0.8

K_{f = 3.296 x  10^{-7J

6 0
3 years ago
How much physical activity do adults need?
serg [7]
30? Physical activity
8 0
3 years ago
Read 2 more answers
When you drop a 0.43 kg apple, Earth exerts
Archy [21]

Answer:

The acceleration of the earth is 7.05 * 10^-25 m/s²

Explanation:

<u>Step 1:</u> Data given

mass of the apple = 0.43 kg

acceleration = 9.8 m/s²

mass of earth = 5.98 * 10 ^24 kg

<u>Step 2:</u> Calculate the acceleration of the earth

Following the third law of Newton F = m*a

F(apple) = F(earth) = m(apple)*a(apple)

F(apple) = 0.43 kg * 9.8 m/s² = 4.214 N

a(earth) = F(apple/earth)/m(earth)

a(earth) = 4.214N /5.98 * 10 ^24 kg

a(earth) = 7.05 * 10^-25 m/s²

The acceleration of the earth is 7.05 * 10^-25 m/s²

4 0
3 years ago
Other questions:
  • Most stars are members of groups of two or more stars, called _____.
    8·1 answer
  • A very strong, but inept, shot putter puts the shot straight up vertically with an initial velocity of 11.0 m/s. how long does h
    10·1 answer
  • The water in a tank is pressurized by air, and the pressure is measured by a multi-fluid manometer as shown. determine the gage
    5·2 answers
  • Before the widespread use of computers, how was the epicenter of an earthquake determined?
    14·2 answers
  • The electrons of carbon and hydrogen are _____________ in this molecule of methane.
    7·1 answer
  • According to Newtons third law of motion when one object exerts a force on a second object what is true about the forces?
    14·1 answer
  • I WILL NAME YOU BRAINLIEST IF YOU ANSWER THIS!! This question will make you think twice, let see if you can answer this! Worth 1
    12·2 answers
  • An object that does not allow light to pass through it is
    5·2 answers
  • True or False: Modulated waves can be analog or digital.
    5·1 answer
  • A planet's distance from the sun is 2.0x10^11 m. what is the orbital period?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!