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
VashaNatasha [74]
3 years ago
8

students make a small elevator machine with 5 kg and 10 kg masses on either side how fast will the masses accelerate once they a

re released?​
Physics
1 answer:
mihalych1998 [28]3 years ago
8 0

Answer:

The acceleration of the elevator machine is, a = 3 m/s²                

Explanation:

Given data,

The mass on the one end, m = 5 kg

The mass on the other end, M = 10 kg

According to the Atwood's machine

                    Ma = Mg - T

                     ma = T - mg

Adding those equations,

                   a (M + m) = g ( M - m)

                       a = (M + m) / ( M - m)

Substituting the values,

                       a = (10 + 5) / (10 - 5)

                          = 3 m/s²

The acceleration of the elevator machine is, a = 3 m/s²                

You might be interested in
An infinitely long straight wire has a uniform linear charge density of Derive the 4. equation for the electric field a distance
marshall27 [118]

Answer:

E = \frac{\lambda}{2\pi \epsilon_0 r}

Explanation:

Let the linear charge density of the charged wire is given as

\frac{q}{L} = \lambda

here we can use Gauss law to find the electric field at a distance r from wire

so here we will assume a Gaussian surface of cylinder shape around the wire

so we have

\int E. dA = \frac{q}{\epsilon_0}

here we have

E \int dA = \frac{\lambda L}{\epsilon_0}

E. 2\pi r L = \frac{\lambda L}{\epsilon_0}

so we have

E = \frac{\lambda}{2\pi \epsilon_0 r}

4 0
3 years ago
find the resistance of a multiplier connected with milliammeter of resistance 10 ohms with a deflection of 10 milliamperes and t
Murljashka [212]
The answer is 26 because you add
8 0
2 years ago
Assume that you can heat water with perfect insulation (all the heat from combustion of ethanol is transferred to water). What i
krok68 [10]

Answer:

volumme =0.36 ml

Explanation:

total heat required can be obtained by using following formula

q= mC \Delta T.......(1)

where,

m - mass of water,

C - specific heat capacity of water and = 4.184 j g^{-1} °C

\Delta T - total change in temperature.  = 10°C

The density of water is 1 g/cc. hence, 200 mL of water is equal to 200 g

putting all value in the above equation (1)

q = 200*4.184* 10 ° = 8368 J.

Therefore total number of moles of ethanol required to supply 8368 J of heat is

\frac {8368}{1368000} = 0.006117 moles.

The molar mass of ethanol is 46 g/mol.

The mass of ethanol required is 46* 0.006117 = 0.28138 g

The density of ethanol is 0.78 g/ml.

The volume of ethanol required is

\frac {0.28138}{0.78} = 0.36 ml

8 0
3 years ago
A planet of mass m moves around the Sun of mass M in an elliptical orbit. The maximum and minimum distance of the planet from th
zzz [600]

Answer:

the relation between the time period of the planet is

T = 2π √[( r1 + r2 )³ / 8GM ]

Explanation:

Given the data i  the question;

mass of sun = M

minimum and maximum distance = r1 and r2 respectively

Now, using Kepler's third law,

" the square of period T of any planet is proportional to the cube of average distance "

T² ∝ R³

average distance a = ( r1 + r2 ) / 2

we know that

T² = 4π²a³ / GM

T² = 4π² [( ( r1 + r2 ) / 2 )³ / GM ]

T² = 4π² [( ( r1 + r2 )³ / 8 ) / GM ]

T² = 4π² [( r1 + r2 )³ / 8GM ]

T = √[ 4π² [( r1 + r2 )³ / 8GM ] ]

T = 2π √[( r1 + r2 )³ / 8GM ]

Therefore, the relation between the time period of the planet is

T = 2π √[( r1 + r2 )³ / 8GM ]

5 0
3 years ago
During takeoff, an airplane climbs with a speed of 130 m/s at an angle of 47 degrees above the horizontal. The speed and directi
Reptile [31]
130cos(47deg) = 88.6598 m/s
5 0
3 years ago
Other questions:
  • If a wave has amplitude of 2 meters, a wavelength of 5 meters, and a frequency of 60 Hz, at what speed is it moving?
    13·2 answers
  • What total mass must be converted into energy
    6·2 answers
  • Which of the following changes the mass of an object?
    15·2 answers
  • Calculate the energy needed to heat 4 kg of water from 25°C to 45°C.
    10·2 answers
  • Using the knowledge you gained from your lessons and from this practical exercise, this engine appears to be a
    5·1 answer
  • What would happen if all the powers of government were held by one person or one group of people? Would it be a good thing or a
    9·1 answer
  • Two froghoppers sitting on the ground aim at the same leaf, located 35 cm above the ground. Froghopper A jumps straight up while
    6·2 answers
  • Difference between Pascal’s law and law of flotation
    14·1 answer
  • Determine the torque<br> produced by a perpendicular force of 75<br> N at the end of a 0.2 m wrench.
    13·2 answers
  • the video identifies the force pair produced when an apple falls through the air. which force belongs in a free-body diagram of
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!