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sleet_krkn [62]
3 years ago
13

Question 12

Physics
1 answer:
Natali5045456 [20]3 years ago
8 0

Answer:

D 500 N

Explanation:

As the velocity is constant the scale reads the same whether at rest, or at a fixed velocity. The only thing that would make the scale read differently would be a vertical acceleration.

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a magnet has a 20 cm magnetic field if a piece of metal is 18 cm from the magnet will it be attracted or not
mina [271]

Answer:

yes

Explanation:

The metal is closer than 20 cm to the magnet which is in the magnetic field.

4 0
3 years ago
The 6 kg block is then released and accelerates to the right, toward the 4 kg block. The surface is rough and the coefficient of
KatRina [158]

Answer:

v =3.41 m/s

Explanation:

given,

mass of block 1 = 6 Kg

mass of another block 2 = 4 Kg

coefficient of friction = 0.3

Assuming 6 Kg block is attached to the spring of spring constant 350 N/m

and distance between the two block is equal to 0.5 m

using formula

U = \dfrac{1}{2}kx^2

U = \dfrac{1}{2}\times 350 \times 0.5^2

   U = 43.75 J

using conservation of energy

 KE = U - f.d

where f is the frictional force acting

\dfrac{1}{2}mv^2 = 43.75- \mu m g d

\dfrac{1}{2}\times 6 \times v^2 = 43.75- 0.3\times 6 \times 9.8 \times 0.5

v= \sqrt{11.643}

       v =3.41 m/s

4 0
4 years ago
Which compound most likely has atoms held together by covalent bonds?
Fantom [35]

Answer:

Meth CH4

Explanation:

Breaking bad

5 0
3 years ago
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In a warehouse, the workers sometimes slide boxes along the floor to move them. Two boxes were sliding toward each other and cra
san4es73 [151]

Answer:

Box 1 has more mass than box 2.

Explanation:

Box 1 has more mass than box 2, as it caused a greater affect in the change of speed of box 2. During a collision, the object with a lesser mass will be affected more, causing the velocity to change more. Because box one is greater than box  2, it caused a larger change in speed when they collided.

3 0
3 years ago
In a collision, a vehicle that rebounds off the object it strikes experiences the same force as it exerts on that object, assumi
Vaselesa [24]
True, the same force is experienced
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3 years ago
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