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
boyakko [2]
3 years ago
5

What is the resultant of a pair of forces, 100N, upward and 75N, downward?

Physics
1 answer:
soldi70 [24.7K]3 years ago
3 0

Answer:

25N

Explanation:

100 - 75 = 25

That should be right if im not dumb...

You might be interested in
How might a nation be affected if another nation did not follow agreed upon water rules
forsale [732]
The other nation will get mad at the other nation and they could start a war
................................................................
4 0
3 years ago
A horizontal 826 N merry-go-round of radius 1.17 m is started from rest by a constant horizontal force of 57.8 N applied tangent
Julli [10]

Answer:

The kinetic energy of the merry-go-round is \bf{475.47~J}.

Explanation:

Given:

Weight of the merry-go-round, W_{g} = 826~N

Radius of the merry-go-round, r = 1.17~m

the force on the merry-go-round, F = 57.8~N

Acceleration due to gravity, g= 9.8~m.s^{-2}

Time given, t=3.47~s

Mass of the merry-go-round is given by

m &=& \dfrac{W_{g}}{g}\\~~~~&=& \dfrac{826~N}{9.8~m.s^{-2}}\\~~~~&=& 84.29~Kg

Moment of inertial of the merry-go-round is given by

I &=& \dfrac{1}{2}mr^{2}\\~~~&=& \dfrac{1}{2}(84.29~Kg)(1.17~m)^{2}\\~~~&=& 57.69~Kg.m^{2}

Torque on the merry-go-round is given by

\tau &=& F.r\\~~~&=& (57.8~N)(1.17~m)\\~~~&=& 67.63~N.m

The angular acceleration is given by

\alpha &=& \dfrac{\tau}{I}\\~~~&=& \dfrac{67.63~N.m}{57.69~Kg.m^{2}}\\~~~&=& 1.17~rad.s^{-2}

The angular velocity is given by

\omega &=& \alpha.t\\~~~&=& (1.17~rad.s^{-2})(3.47~s)\\~~~&=& 4.06~rad.s^{-1}

The kinetic energy of the merry-go-round is given by

E &=& \dfrac{1}{2}I\omega^{2}\\~~~&=&\dfrac{1}{2}(57.69~Kg.m^{2})(4.06~rad.s^{-1})^{2}\\~~~&=& 475.47~J

5 0
3 years ago
2 objects have a total momentum of 400kg m/s, they collide. Object A’s mass is5kg & object B’s mass is 11kg. After the colli
ss7ja [257]

Answer:

Explanation:

We shall apply law of conservation of momentum .

Momentum before collision = momentum after collision .

Momentum before collision = 400 kg m/s

Momentum after collision = 5  x v + 11 x 15

where v is velocity of A after the collision .

5  x v + 11 x 15 = 400

5 v = 400 - 165

5v = 235

v = 47 m /s .

3 0
3 years ago
Hazardous wastes are placed into categories to aid in _____.
torisob [31]
The waste that poses substantial or potential threats to public and environment health
Hazardous waste are actually defined as RCRA in 40 CFR 261 the the four hazardous traits are 
ignitability 
reactivity 
corrosivity  
toxicity 
i think its b
4 0
3 years ago
Read 2 more answers
An AWG No.16 line cord with type HPN insulation has an amp airy of
Lostsunrise [7]

12 amp is your answer

5 0
2 years ago
Other questions:
  • Explain how you would draw magnetic field lines in the vicinity of this magnet (it is a normal north and south magnet)
    7·1 answer
  • If you add a battery to a series circuit what will happen to the current in the circuit
    9·1 answer
  • Wind power is _____. prevalent in Denmark non-polluting renewable all of these
    11·2 answers
  • What is electropositivity and electronegativity? Between group 1 and group 17, which is electropositive and electronegative?
    9·1 answer
  • If a 3-kilogram iron ball is acted upon by a force of 3 newtons, what will be the result?
    5·1 answer
  • What electrons are in “motion”, what do you have?
    15·1 answer
  • In a healthy body, the heart pumps blood efficiently. When the heart has a problem, heart failure can occur. Heart failure can h
    8·2 answers
  • The blades of a fan running at low speed turn at 26.2 rad/s. When the fan is switched to high speed, the rotation rate increases
    7·2 answers
  • Help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • MGS and later orbiters found spectral evidence for what minerals on the Martian surface? Check all that apply.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!