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3 years ago

Can someone please help me with these. I don't understand any of it.

Physics

1 answer:

ValentinkaMS [17]3 years ago

6 0

1. electrical energy: electrical energy that is caused by moving electrons

2. coolant: a mixture of antifreeze and water that removes excess heat from an internal engine

3. electric compressor: a device that acts as a pump, circulating refrigerant throughout the refrigerator

4. the inside of the fridge and the food becomes colder

5. the coolants becomes a hot, high-pressure gas

6. as coolant transfers thermal energy to the air outside, it turns back into a liquid

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you start your bicycle ride at the top of a hill. you coast down the hill at a constant acceleration of 2.00 m/s^2. When you get

stiv31 [10]

198 meters I think, I could be wrong

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3 years ago

Why shouldnt u cram for a skills test?

Angelina_Jolie [31]

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3 years ago

A dust particle with mass of 5.4×10−2 g and a charge of 2.3×10−6 C is in a region of space where the potential is given by V(x)=

user100 [1]

Answer:

1.6 m/s^2

Explanation:

Hello!

To calculate the acceleration we must know the electric field. The electric field and the potential are related by:

$E = -\frac{dV}{dx} =- 2.6(\frac{V}{m^{2}})x + 8.1(\frac{V}{m^{3}})x^{2}$

If the particle starts at 2.3m, the electric field is:

E = 36.869 V/m = 36.869 N/C

So, the force on the particle is:

F = q E = 2.3×10^−6 C * 36.869 N/C = 8.48 x 10^-5 N

And its acceleration is :

a = F/m = 8.48 x 10^-5 N / 5.4×10−5 kg = 1.57 m/s^2

Rounded to two significant figures:

1.6 m/s^2

6 0

4 years ago

dsp73

Answer: both environments are undergoing succession, but different kinds

Explanation:

4 0

3 years ago

Please answer my quastions

Neko [114]

Answer:

a) 120 N

b) 5 N

c) 0.2 N

d) Mass remains the same, and weight decreases.

Explanation:

Use the formula W = mg, where mass is in kg, and gravitational field strength in N/kg.

W = mg

= 12 × 10

= 120 N

500 g = 0.5 kg

W = mg

= 0.5 × 10

= 5 N

20 g = 0.02 kg

W = mg

= 0.02 × 10

= 0.2 N

Mass remains the same, and weight decreases.

6 0

3 years ago