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Soloha48 [4]
3 years ago
10

Balance these equations:

Physics
1 answer:
Katen [24]3 years ago
3 0

Sorry, I most likely did this wrong; but hopefully I didn't!

HgO2

Na+H2CI

K2CI2

C2H6O2--> H2CO2

C5H12O2--> H2CO3

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Two forces of 50 N and 30N respectively, are acting on an object. Find the net force (in N) on the object if
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A) the forces are acting in the same direction.. B) Together, forces are acting in opposite directions

Answer:

A) 80 N

B) 20 N

Explanation:

A) If the forces acting are in the same direction, then the net force will be a sum of both so many faces..

Thus;

ΣF = 50 + 30

ΣF = 80 N

B) If the forces are acting in the in opposite directions with the larger force pointing in the positive y-axis then, the net force is;

ΣF = 50 - 30

ΣF = 20 N

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3 years ago
A 20-kg barrel is rolled up a 20-m ramp to the back of a truck whose floor is 5.0 m above the ground. What work is done in loadi
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The angle of inclination is calculated using sin function,

sin θ = 5 m / 20 m = 0.25

θ = 14.4775° 

 

<span>The net force exerted is then calculated:
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F net = 49N 

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W = F net * d = 49 * 20 </span>

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4 0
3 years ago
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antiseptic1488 [7]
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5 0
3 years ago
As a pole of a 2nd-order discrete-time system moves away from the origin in the z-plane, while its phase remains constant, the d
Rudik [331]

Answer:

False

Explanation:

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As the poles of a 2nd-order discrete-time system moves away from the origin then natural frequency (ω₀) increases, which in turn increases damped oscillation frequency (ωd) of the system.

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Where ζ is called damping ratio.

For small value of ζ

ωd ≈ ω₀

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3 years ago
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It is as a result of gravity.  (D)

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The constant of proportionality is the Universal Gravitational Constant.

G = 6.673 × 10⁻¹¹ Nm²kg⁻²
4 0
3 years ago
Read 2 more answers
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