Answer:
1176N
Explanation:
Given parameters:
Mass of bench = 100kg
Forward force = 980N
Coefficient of static friction = 0.2
Acceleration = 1.84m/s²
Unknown:
Magnitude of the applied force =?
Solution:
Frictional force is a force that opposes motion, for a body to move, the applied force must be greater than the frictional force;
The Force applied;
Force applied = Frictional force + Weight of the body
Frictional force = umg
u is the coefficient of static friction
m is the mass
g is the acceleration due to gravity
Force applied = 0.2 x 100 x 9.8 + 980 = 1176N
Explanation:
The newton-second (also newton second; symbol: N⋅s or N s)[1] is the derived SI unit of impulse. It is dimensionally equivalent to the momentum unit kilogram-metre per second (kg⋅m/s). One newton-second corresponds to a one-newton force applied for one second.
Newton-second
Impuls Masse Geschwindigkeit.svg
For two objects moving with the same velocity (v), the object with the greater mass (m) will have the greater momentum (p).
H2O is present at a calculated value of 1.0 x 107 moles per liter.
The balance of neutral water molecules and the ions they generate controls the chemistry of aqueous solutions.
H3O+(aq) + 2 H2O(l) + OH- (aq)
1.0 x 10-7 M [H3O+] = [OH-]
As a result, adding an acid to water affects the concentration of both H3O+ and OH- ions. Acids raise the concentration of the H3O+ ion in water since they are a source of this ion. However, the amount to which water dissociates is reduced when an acid is added. As a result, the concentration of the OH- ion significantly drops. The concentration of OH- ions rises as a result of adding a base. The H3O+ and OH- ion concentrations are combined to equal Kw once the system reaches equilibrium. Naturally, the only method to do this is to reduce the concentration of the H3O+ ion.
Learn more about Concentration here-
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Answer: -17.66 m/s or 17.66 m/s downwards
Explanation:
The decribed situation is related to vertical motion and the main equation is:
(1)
Where:
is the final height of both stones
is the initial height of both stone
s
is the initial velocity of the stone
In the case of the first stone is and for the second stone is different from zero
is the time, which is the same for both stones
is the acceleration due to gravity
Having this clear, let's find for the first stone:
(2)
(3)
Isolating :
(4)
(5)
(6)
Now we have to use this time to find :
(7)
Isolating :
(8)
(9)
Finally:
(10) The negative sign indicates the direction of the initial velocity is vertically down
Hello there.
<span>Which type of wave makes up the visible spectrum of the electromagnetic spectrum?
Answer: </span><span>A. X-rays
</span>