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3 years ago

When friction slows a sliding block___

Physics

1 answer:

Svetradugi [14.3K]3 years ago

6 0

Answer:

Explanation:

When friction slows a sliding block, the kinetic energy of the block is transformed into internal energy .

The frictional movement of two surfaces over one another leads to the conversion of some of their kinetic energies to another energy - heat or thermal energy. Hence, the temperatures of the objects are raised in the process.

Therefore, when a sliding block is slowed down due to friction, some of the kinetic energy of the block would be transformed into internal energy in the form of heat.

The correct option is A.

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Fe2(co3)3 number of atoms

Vera_Pavlovna [14]

Answer:

14 atoms

Explanation:

Number of atoms in Fe₂(CO₃)₃

An atom is the smallest indivisible particle that takes part in a chemical reaction.

In Fe₂(CO₃)₃; we have:

Elements Number of atoms

Fe 2

C 3

O 3(3) = 9

Total number of atoms = 2 + 3 + 9 = 14 atoms

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3 years ago

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Sonbull [250]

Answer:

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3 years ago

For a science project, Janet performs four experiments that are supposed to show a chemical reaction. She displays her results i

mixas84 [53]

number 4 should be no

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4 years ago

If the mass of an object is 14 lbm, what is its weight, in lbf, at a location where g = 32.0 ft/s2?

mixas84 [53]

Using the formula:

w = m x g ....... eq1

here w is weight of the object.

m is mass of the object, and

g is the acceleration of gravity.

mass, m = 14 lbm (given)

acceleration of gravity, g= 32.0 ft/ $s^{2}$

Now, substituting the values in equation (1):

w = 14lbm x 32.0 ft/ $s^{2}$ = 448 lbm ft/ $s^{2}$

since, 1 lbf = 32.174 lbm ft/ $s^{2}$

so, w = 448 x $\frac{1}{32.174}$

w = 13.924lbf

Hence, the mass of an object is 13.924 lbf.

To know more about such questions, visit:

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2 years ago

A 2.0 kg stone is tied to a 0.30 m string and swung around a circle at a constant angular velocity of 12.0 rad/s. The net torque

saul85 [17]

Answer: τ = 0

Explanation:

At constant angular velocity there is no angular acceleration therefore no torque.

τ = Iα

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3 years ago