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Mazyrski [523]
2 years ago
12

The weight of an object is the product of its mass m, and acceleration of gravity , g . If an objects mass is m=10 . Kg what is

its weight?
Physics
1 answer:
zzz [600]2 years ago
8 0

Its weight is 10g .  The 'g' is the acceleration of gravity
wherever the object happens to be at the time.

On Mars, g=3.71 m/s², the object weighs 37.1 newtons.

On the Moon, g=1.62 m/s², the object weights16.2 newtons.

On Earth, g=9.81 m/s², the object weighs 98.1 newtons.
.
.
etc.

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A car slows down at -5.00 m/s^2 until it comes to a stop after traveling 15.0 m. What was the initial speed of the car?
maria [59]
8.66mls = v1

vf2 = vi2 + a(d)
(0mls) squared = visquared + - 5mls squared (15m)
0mls squared = vi2 - 75m squared / s squared
\sqrt{x} 75 m squared/s squared = vi

Hope this helps!
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What does the evidence in this passage suggest?
mestny [16]

Answer: D

Explanation:

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2 years ago
Force F = (-6.0 N)ihat + (2.0 N) jhatacts on a particle with position vector r =(4.0 m) ihat+ (4.0 m) jhat.
finlep [7]

Answer:

\tau=(-32k)\ N-m

\theta=116.55^{\circ}

Explanation:

Given that.

Force acting on the particle, F=(-6i + 2.0j)\ N

Position of the particle, r=(4i+4j)\ m

To find,

(a) Torque on the particle about the origin.

(b) The angle between the directions of r and F

Solution,

(a) Torque acting on the particle is a scalar quantity. It is given by the cross product of force and position. It is given by :

\tau=F\times r

\tau=(-6i + 2.0j)\times (4i+4j)

\tau=\begin{pmatrix}0&0&-32\end{pmatrix}

\tau=(-32k)\ N-m

So, the torque on the particle about the origin is (32 N-m).

(b) Magnitude of r, |r|=\sqrt{4^2+4^2}=5.65\ m

Magnitude of F, |F|=\sqrt{(-6)^2+2^2}=6.324\ m

Using dot product formula,

F{\circ}\ r=|F|.|r|\ cos\theta

cos\theta=\dfrac{F{\circ} r}{|F|.|r|}

cos\theta=\dfrac{-24+8}{6.324\times 5.65}

\theta=116.55^{\circ}

Therefore, this is the required solution.

6 0
2 years ago
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The pitch of a sound wave refers to the loudness of a wave. True False
Charra [1.4K]
False it refers to frequency
6 0
2 years ago
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