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photoshop1234 [79]
3 years ago
5

Match the term to the correct description.

Physics
1 answer:
stiks02 [169]3 years ago
4 0
1. Resistor
2. Insulator
3. Current
4. Semiconductor
5. Conductor
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Stored energy is_____ Energy.
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1: B

2:B
They are both Potential energy the second one can be kinetic energy if the energy flow your welcome
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Suppose a police officer is 1/2 mile south of an intersection, driving north towards the intersection at 30 mph. at the same tim
aleksandr82 [10.1K]

In triangle ABC , using Pythagorean theorem

BC = sqrt(AB² + AC²)

r = sqrt(y² + x²)                                eq-1

taking derivative both side relative to "t"

dr/dt = (1/(2 sqrt(y² + x²) ) ) (2 y (dy/dt) + 2 x (dx/dt))

dr/dt = (1/(2 sqrt(0.5² + 0.5²) ) ) (2 (0.5) (dy/dt) + 2 (0.5) (dx/dt))

dr/dt = (1/(2 sqrt(0.5² + 0.5²) ) ) ( v₁ + v₂)

15= (1/(2 sqrt(0.5² + 0.5²) ) ) ( - 30 + v₂)

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3 years ago
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Is Mars a gas planet or a rocky planet?
OLEGan [10]
Mars is a rocky planet
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A dog of mass 10 kg sits on a skateboard of mass 2 kg that is initially traveling south at 2 m/s. The dog jumps off with a veloc
Tasya [4]

Answer:

17 m/s south

Explanation:

m_1 = Mass of dog = 10 kg

m_2 = Mass of skateboard = 2 kg

v = Combined velocity = 2 m/s

u_1 = Velocity of dog = 1 m/s

u_2 = Velocity of skateboard

In this system the linear momentum is conserved

(m_1+m_2)v+m_1u_1+m_2u_2=0\\\Rightarrow u_2=-\dfrac{(m_1+m_2)v+m_1u_1}{m_2}\\\Rightarrow u_2=-\dfrac{(10+2)2+10\times 1}{2}\\\Rightarrow u_2=-17\ m/s

The velocity of the skateboard will be 17 m/s south as the north is taken as positive

3 0
4 years ago
A SCUBA tank can normally hold 18 L of gas at 3000 psi. How many liters of gas would this be equivalent to if the gas were at 14
Naily [24]

Answer:

  • <u><em>4,000 liters</em></u>

Explanation:

Assume constant temperature and use Boyle's law:

          PV=constant\\\\P_1V_1=P_2V_2\\\\3,000psi\times 18L=14.7psi\times V_2\\\\V_2=3,000psi\times 18L/14.7psi\\\\V_2=3,673.47L

You must reound to one significant figure because 3,000 psi has one significant figure.

           V_2=4,000L

7 0
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