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
Reil [10]
3 years ago
12

an elevator of mass 250kg is carrying two persons whose masses are 50kg and 100kg. if the forces exerted by the motor is 3000N.

calculate the mass of the bodies in the elevator.... Taking g as 10m/s²​
Physics
1 answer:
Aloiza [94]3 years ago
6 0

Explanation:

mass=force*acceleration

mass=3000*10

mass=30,000

You might be interested in
Anyone tell me what is the physics​
Katyanochek1 [597]

Answer:

physic is branch of science in which math is its brother and will deal with the equation,law and evidence of natural phenomenon.

6 0
3 years ago
Sound travels Faster through _____________ mediums.
Maru [420]

Answer:

I know for sure that it's either A or B have a great day sorry I don't know which one completely

3 0
3 years ago
Read 2 more answers
If two particles have equal kinetic energies, are their momenta necessarily equal? explain.
Mandarinka [93]

Answer:

No the given statement is not necessarily true.

Explanation:

We know that the kinetic energy of a particle of mass 'm' moving with velocity 'v' is given by

K.E=\frac{1}{2}mv^{2}

Similarly the momentum is given by m\times v

For 2 particles with masses m_{1},m_{2}and moving with velocities v_{1},v_{2} respectively the respective kinetic energies is given by

K.E_{1}=\frac{1}{2}m_{1}v_{1}^{2}

K.E_{2}=\frac{1}{2}m_{2}v_{2}^{2}

Similarly For 2 particles with masses m_{1},m_{2}and moving with velocities v_{1},v_{2} respectively the respective momenta are given by

p_{1}=m_{1}\times v_{1}

p_{2}=m_{2}\times v_{2}

Now since it is given that the two kinetic energies are equal thus we have

\frac{1}{2}m_{1}v_{1}^{2}=\frac{1}{2}m_{2}v_{2}^{2}\\\\(m_{1}v_{1})\times v_{1}=(m_{2}v_{2})\times v_{2}\\\\p_{1}\times v_{1}=p_{2}\times v_{2}\\\\\therefore \frac{p_{1}}{p_{2}}=\frac{v_{2}}{v_{1}}............(i)

Thus we infer that the moumenta are not equal since the ratio on right of 'i' is not 1 , and can be 1 only if the velocities of the 2 particles are equal which becomes a special case and not a general case.

5 0
4 years ago
An electron is emmited by an atomic nucleus in the process of...
Sliva [168]
I’m pretty sure it’s Radioactive decay
8 0
3 years ago
Read 2 more answers
How do i do a Wavelength and frequency problem
KengaRu [80]

Answer:

wavelength = v/f or wavelength equals to velocity over frequency

frequency= v/w or velocity over wavelength

frequency= 1/p or one over period or time

7 0
4 years ago
Other questions:
  • A skateboarder starts at 2.75 m/s and accelerates for 8.90 s over a distance of 16.7
    5·1 answer
  • 0. A 1700-W machine operates at 120 V. What i
    12·1 answer
  • In terms of volume,how do ml & cm3 relate to one another?
    7·2 answers
  • If the steam in the engine is able to raise a 30 kg piston to a height of 0.68 m, how much work has been done by the steam?
    11·1 answer
  • If you detected radio signals with an average wavelength of 67 cm and suspected that they came from a civilization on a distant
    13·1 answer
  • Which characteristic is related to kinetic energy but not potential energy?
    5·1 answer
  • What do fast-twitch and slow-twitch muscle fibers share in common
    10·1 answer
  • when an apple falls towards the earth the earth moves up to meet the apple. Is it true? If yes, why is the earth motion not noti
    9·1 answer
  • How much WATER needed to offset the force of jumping down from 20metre in vacuum environment,to keep me alive.
    5·1 answer
  • The ability for a muscle to work against a resistance for an extended period of time is.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!