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3 years ago

Which block do you think will slide down the ramp most quickly?

Chemistry

2 answers:

Oksi-84 [34.3K]3 years ago

8 0

Steel block because if you think about the friction it would make it more fast and therefore it would go faster

tangare [24]3 years ago

5 0

Steel because of friction. When rubber moves over smooth surfaces, it's the molecular forces between the two that are the main cause of friction. But when the surface is rough, it's the deformation of entire molecular layers of rubber that's the chief cause of friction.

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Which is the best label for the dotted-line arrow

DENIUS [597]

Answer:

moon's motion without gravity

Explanation:

The reason it's moon's motion without gravity is because if you take away earths gravitational pull it would simply go in the direction it last was, and the last direction it was, was where the dotted arrow is.

5 0

4 years ago

Read 2 more answers

The potential energy of an object increases 50 J. If there is no friction how much Kinect energy has been transformed

Mandarinka [93]

Answer:

The amount of kinetic energy an object has depends on its

Motion

Explanation:

Only kinetic energy increases when the velocity of an object increases.

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3 years ago

A gas is confined in a 0.3m diameter cylinder by a piston, on which rests a weight. The mass of the piston is 85 kg. The local a

iris [78.8K]

Explanation:

Force applied on the gas will be as follows.

$F_{gas} = F_{atm} + (m + M) g$

As, F = pressure × area. Hence, calculate the forces as follows.

$F_{gas}$ = pressure × area

= $1.4 \times 10^{5} Pa \times \pi \times (\frac{0.3}{2})^{2}$

= $1.979 \times 10^{4}$ N

$F_{atm}$ = pressure × area

= $1.0133 \times 10^{5} \times \pi \times (\frac{0.3}{2})^{2}$

= $1.432 \times 10^{4}$ N

$F_{gas}$ - $F_{atm}$ = $5.47 \times 10^{3}$ N

Substituting the calculated values into the above formula as follows.

$F_{gas} = F_{atm} + (m + M) g$

$F_{gas} - F_{atm}$ = (m + M) g

$5.47 \times 10^{3}$ N = $(m + 85) \times 9.8$

$5.47 \times 10^{3}$ N = $9.8m + 833$

m = 472.76 kg

Thus, we can conclude that the mass is 472.76 kg.

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4 years ago

NEED ANSWER FAST !!

Ilia_Sergeevich [38]

Answer:

.-.

Explanation:

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3 years ago

Electronegativity and ionization energy __________ from left to right within a period and __________ from top to

sergij07 [2.7K]

Answer:

C, increases/decreases

Explanation:

As you move down a group on the periodic table, the electronegativity of an element decreases because the increased number of energy levels puts the outer electrons very far away from the pull of the nucleus.

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3 years ago