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
dsp73
3 years ago
9

Three blocks are arranged in a stack on a frictionless horizontal surface. The bottom block has a mass of 37.0 kg. A block of ma

ss 18.0 kg sits on top of it and a 16.0 kg block sits on top of the middle block. A downward vertical force of 170 N is applied to the top block. What is the magnitude of the normal force exerted by the bottom block on the middle block?
Physics
1 answer:
Alex777 [14]3 years ago
7 0

Answer:

N₂ = 503.8 N

Explanation:

given,

mass of bottom block = 37 Kg

mass of middle block = 18 Kg

mass of the top block = 16 Kg

force acting on the top block = 170 N

force on the block at top

N₁ be the normal force from block at middle

now,

N₁ = 170 + m g

N₁ = 170 + 16 x 9.8

now, force on block at middle

N₂ be the normal force exerted by the bottom block

N₂ = N₁ + m₂ g

N₂ = 326.8 + 18 x 9.8

N₂ = 503.8 N

hence, normal force by bottom block is equal to N₂ = 503.8 N

You might be interested in
Explain how to determine the volume of an irregularly shaped object such as a rock
alexira [117]
If you have no way to accurately measure all of the object's bumps and dimples, then the only way to measure its volume is by means of fluid displacement. 

-- Put some water into a graduated (marked) container, read the amount of water, drop the object into the container, and read the new volume in the container.  The volume of the object is the difference between the two readings.

-- Alternatively, stand an unmarked container in a large pan, and fill it to the brim. Slowly slowly lower the object into the unmarked container, while the pan catches the water that overflows from it.  When the object is completely down in the container, carefully remove the container from the pan, and measure the volume of the water in the pan.  It's equal to the volume of the object.
6 0
3 years ago
Can someone help me with this science question like uhm!??!? anyone
Anastaziya [24]

Answer:

mechanical layers of the earth

Lithosphere

-Asthenosphere

-Mesosphere

-Outer Core

-Inner Core

Chemical layers of the earth:

-Crust

-Mantle

-Core

I hope this helps :)

7 0
2 years ago
Consider a turnbuckle that has been tightened until the tension in wire AD is 350 N. Draw the FBD that is required to determine
Mars2501 [29]

Answer:

yes

Explanation:

yes

6 0
2 years ago
Which quantity is measured in newton seconds (Ns)?
pshichka [43]

Answer:

Impulse

Explanation:

Impulse is force times time

7 0
2 years ago
Sheila eats an energy bar right before she goes on a run. What energy changes will occur in sheila as she runs after eating?
LiRa [457]
The energy bar eaten by Sheila has chemical energy locked up inside it. This chemical energy is converted to mechanical energy in form of potential and kinetic energy and this in turn is converted to heat energy as the run progresses. Thus, the energy changes are: chemical energy to mechanical energy [kinetic and potential] and finally to heat energy.
8 0
2 years ago
Read 2 more answers
Other questions:
  • A radioactive nucleus has a half-life of 5 x 108 years. Assuming that a sample of rock (say, in an asteroid) solidified right af
    5·1 answer
  • The only type of investigation that involves a control group is
    9·2 answers
  • A Cephied is a star that belongs to a class of yellow supergiant pulsating stars; these stars vary periodically in brightness, a
    15·1 answer
  • Convert
    7·1 answer
  • A bucket of warm water can be considered a closed system for a very short period of time. Which best explains this phenomenon? A
    9·1 answer
  • When looking at the Impulse of an object during a collision, we often use "average force"? When an object hits something, is the
    8·1 answer
  • PLZ HELP ON #22-26!!!! <br><br>Please explain why and how you got your answer.
    13·1 answer
  • Our Milky Way galaxy is 100,000 ly in diameter. A spaceship crossing the galaxy measures the galaxy's diameter to be a mere 1 ly
    9·1 answer
  • I need help with this. Lab: Conservation of Linear Momentum<br>Assignment: Lab Report Urgent!!
    6·2 answers
  • Block A of mass 2.0 kg is released from rest at the top of a 3.6 m long plane inclined at an angle of 30o, as shown in the figur
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!