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ELEN [110]
3 years ago
14

Look at the image and answer the question correctly.

Physics
2 answers:
mart [117]3 years ago
7 0

Answer:

B

Explanation:

Anastaziya [24]3 years ago
5 0

Answer:

V=IR

12=I×2

I=12/2

I=6 ampere.

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Define Archemedics principle?​
azamat

Answer:

Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces. Archimedes' principle is a law of physics fundamental to fluid mechanics. It was formulated by Archimedes of Syracuse.

6 0
3 years ago
20.0 moles, 1840 g, of a nonvolatile solute, C 3H 8O 3 is added to a flask with an unknown amount of water and stirred. The solu
Anastasy [175]

Answer:

0.144 kg of water

Explanation:

From Raoult's law,

Mole fraction of solvent = vapor pressure of solution ÷ vapor pressure of solvent = 423 mmHg ÷ 528.8 mmHg = 0.8

Let the moles of solvent (water) be y

Moles of solute (C3H8O3) = 2 mole

Total moles of solution = moles of solvent + moles of solute = (y + 2) mol

Mole fraction of solvent = moles of solvent/total moles of solution

0.8 = y/(y + 2)

y = 0.8(y + 2)

y = 0.8y + 1.6

y - 0.8y = 1.6

0.2y = 1.6

y = 1.6/0.2 = 8

Moles of solvent (water) = 8 mol

Mass of water = moles of water × MW = 8 mol × 18 g/mol = 144 g = 144/1000 = 0.144 kg

7 0
3 years ago
What would land with more force, a feather moving at a certain acceleration, or a football moving with the same acceleration?
Jlenok [28]

Answer:

the ball ofc

Explanation:

the ball have a greater mass then the feather and it have the same speed as the feather

4 0
2 years ago
Select the correct answer. A ball is thrown straight down from the top of a building at a velocity of 16 ft/s. The building is 4
BartSMP [9]

Answer:

The ball takes 5s to reach the ground

Explanation:

in order to solve this problem we use the kinematics equation with gravity as acceleration:

h=v_0t+1/2*gt^2

we replace the values

0=1/2*32t^2+16t-480

We solve this quadratic equation:

t=5s

t=-6s   (this solution has not physical sense)

8 0
3 years ago
4. What's the voltage drop if V, = 56 V, V2 = 35 V, and V3 = 3 V
Murrr4er [49]

Answer:

The correct option is A. 18 V

Therefore,

V_{1}=18\ V

Explanation:

Given:

Total Voltage,

V = 56 V,

Voltage drop

V_{2}=35\ V

V_{3}=3\ V

To Find:

V_{1}=? (Assumed ,as it is not given clearly in the question)

Solution:

So in series combination total Voltage is given as

V=V_{1}+V_{2}+V_{3}

Substituting the values we get

56=V_{1}+35+3\\\\V_{1}=56-38=18\ V

Therefore,

V_{1}=18\ V

5 0
3 years ago
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