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Elena-2011 [213]
3 years ago
9

2.when sugar or another substance is dissolved in water, it disappears from view and forms a homogeneous mixture with the water,

also called a solution. if you can’t see the sugar, how can you tell that it is there?
Physics
1 answer:
bekas [8.4K]3 years ago
3 0
You cant really tell when it is dissolved

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This is honestly not something I’ve learned. The answer is something I don’t know.
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in an automobile crash, a vehicle that was stopped at a red light is rear-ended by another vehicle. The vehicles have the same m
baherus [9]

The initial speed of the vehicle before the collision is 8 m/s.

  • Let the mass of the vehicle = m
  • Let the initial speed of the vehicle stopped = u
  • The initial speed of the vehicle parked at the red light = 0

<h3>Principle of conservation of linear momentum</h3>
  • The initial speed of the vehicle before the collision is calculated by applying principle of conservation of linear momentum as follows;

m_1 u_1 + m_2 u_2 = v(m_1 + m_2)\\\\mu + m(0) = 4(m+ m)\\\\mu = 4(2m)\\\\mu = 8m\\\\u = 8 \ m/s

Thus, the initial speed of the vehicle before the collision is 8 m/s.

Learn more about inelastic collision here: brainly.com/question/7694106

6 0
2 years ago
15. In the diagram shown, the emf of the secondary winding is______ the emf of the primary winding.
sp2606 [1]

Answer:

Greater than

Explanation:

3 0
2 years ago
Can someone please answer?
nevsk [136]
The answer to your problem is I believe (B.)
5 0
2 years ago
A circuit has a voltage drop of 12.0 V across a 30.0 resistor that carries a current of 0.400 A. What is the power used by the r
Aloiza [94]

Option ( c ) is correct.

Using the formula for power

P= i^2 R

P= power

i= current= 0.4 A

R= resistance= 30 ohm

so power= (0.4)² (30)

Power=4.8 W

7 0
2 years ago
Read 2 more answers
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