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2 years ago

Which statement describes a unit rate?

Physics

2 answers:

Nostrana [21]2 years ago

7 0

Answer:

katherine paid 1.25 for 1 bottle of water

Explanation:

Gwar [14]2 years ago

6 0

Katherine paid $1.25 for a bottle of water

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Does the eruption from a volcano represent force

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Yes, because of the force of gas exploding the volcano from pressure is a force.

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2 years ago

What is a saturated solution? In your own words not Google's

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A saturated solution is one that cannot dissolve any more of the substance that is mixed into it.

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2 years ago

Please help me:(

Lelechka [254]

Answer:B

Explanation:

I’m doing the same thing you are!

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2 years ago

One day, Pinki was ironing the clothes in her room. After half an hour of ironing, the light went off and Pinki went outside to

Triss [41]

Answer:

(a) An electric iron works on the heating effect of electric current

(b) The heating effect of an electric current is the tendency for electric current to cause the temperature of the material through which it is flowing to rise due to the resistance of the material

The heating effect, 'E', is given by the formula, E = I²·R·t

Where;

I = The current flowing

R = The resistance of the material

t = The time the material takes to heat up

(c) The values showed by Pinki here is the value of care, concern and prevention, to prevent the harmful effect of the high heat on the skin of her daughter

Explanation:

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2 years ago

A box has a weight of 150 N and is being pulled across a horizontal floor by a force that has a magnitude of 110 N. The pulling

ivann1987 [24]

Answer:

42.99°

Explanation:

$F_h$ = Kinetic friction force

$F_{\theta}$ = Pulling force at angle $\theta$

$N_h$ = Weight of the box = 150 N

Kinetic friction force

$F_h=\muN_h$

Pulling force at angle $\theta$

$F_{\theta}=\muN_{\theta}$

N = Pulling force

According to question

$\frac{F_h}{F_{\theta}}=\frac{2}{1}\\\Rightarrow \frac{\muN_h}{\muN_{\theta}}=2\\\Rightarrow \frac{N_h}{N_{\theta}}=2\\\Rightarrow N_{\theta}=\frac{N_h}{2}\\\Rightarrow N_{\theta}=\frac{150}{2}\\\Rightarrow N_{\theta}=75\ N$

Applying Newton's second law in the vertical direction we get

$N_h-Nsin\theta=N_{\theta}\\\Rightarrow 150-110sin\theta=75\\\Rightarrow \theta=sin^{-1}\frac{75}{110}\\\Rightarrow \theta=42.99\ ^{\circ}$

The angle is 42.99°

8 0

3 years ago