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4 years ago

What happens when an object with a higher density is placed in a container with a lower density liquid?

1 answer:

8 0

The object with the higher density sinks to the bottom and the lower density stays at the top.They don't mix together either because, of the type of density.

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A railroad car with a mass of 1.94 ✕ 104 kg moving at 3.28 m/s joins with two railroad cars already joined together, each with t

kap26 [50]

The total cost is going to be 536 kg

7 0

4 years ago

A car is driven 225 km west and then 98 km southwest (45).

slava [35]

Sum the vector components: Dx = 225* Cos(180)+ 78*Cos(225)= -280.154 km Dy = 225* Sin(180)+ 78*Sin(225) = -55.154 km displacement: Sqrt(Dx^2+Dy^2) = 285.532 km Arctan(Dy/Dx) = 191.137degrees CCW OR: 11.137 degrees South of West

4 0

3 years ago

Read 2 more answers

If I = 2.0 A in the circuit segment shown below, what is the potential difference VB - VA?

Tom [10]

Answer:

10 V

Explanation:

The potential difference between two points is the amount of work required to carry a unit charge from one point to the other point. This would result in a potential difference between this two points.

The difference between the potential across two points B and A is $V_{BA}=V_B-V_A$

From the image attached:

$V_B-V_A=10-10I+20\\\\But\ I = 2A,hence:\\\\V_B-V_A=10-10(2)+20\\\\V_B-V_A=10-20+20\\\\V_B-V_A=10\ V$

7 0

3 years ago

Can someone help me with this ? I need proper explanation ~

Pepsi [2]

Answer:

Explanation:

3 0

3 years ago

The magnetic flux that passes through one turn of a 8-turn coil of wire changes to 5.0 Wb from 8.0 Wb in a time of 0.098 s. The

Advocard [28]

Answer:

Resistance is 1.75 ohms

Explanation:

Magnetic flux:

${ \phi{ = NBA}}$

N is number of turns, N = 8

B is magnetic flux

A is area of projection.

From faradays law:

$E = - \frac{ \triangle \phi}{t}$

where E is the Electro motive force.

But E = IR

where I is current and R is resistance:

$IR = \frac{( \phi_{1} - \phi _{2}) }{t} \\ \\ 140 \times R = \frac{8 \times (8 - 5)}{0.098} \\ \\ R = \frac{24}{0.098 \times 140} \\ \\ resistance = 1.75 \: ohms$

7 0

3 years ago