PHYSICS MIDDLE SCHOOL

For the definition of Observation, What question can I ask based on the definition?
For the definition of Observation, What question can I ask - 1

Answers

Answer 1
Answer: How would one use their senses to gather information to help answer a hypothesis?

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The primary job of a(n) ____ is to increase the power of a modified radio wave.antenna
amplifier
modulater
transmitter

Answers

Answer:

Ampifier

Explanation:

Hope this helps

Answer:

amplifier

Explanation:

on edge 2020

In the diagram, q1= +8.0 C, q2= +3.5 C, and q3 = -2.5 C. q1 to q2 is 0.10 m, q2 to q3 is 0.15 m. What is the net force on q2? Label sign for charges (+ or -). (Unit = N). pls help?

Answers

Answer:

f(t) =  28,7 [N]

Explanation: IMPORTANT NOTE: IN PROBLEM STATEMENT CHARGES ARE IN C (COULOMBS) AND IN THE DIAGRAM IN μC. WE ASSUME CHARGES ARE IN μC.

The net force on +q₂  is the sum of the force of +q₁  on +q₂ ( is a repulsion force since charges of equal sign repel each other ) and the force of -q₃ on +q₂ ( is an attraction force, opposite sign charges attract each other)

The two forces have the same direction to the right of charge q₂, we have to add them

Then

f(t) = f₁₂ + f₃₂

f₁₂ = K * ( q₁*q₂ ) / (0,1)²

q₁  = + 8 μC     then   q₁ = 8*10⁻⁶ C

q₂ =  + 3,5 μC  then  q₂ = 3,5 *10⁻⁶ C

K = 9*10⁹  [ N*m² /C²]

f₁₂ = 9*10⁹ * 8*3,5*10⁻¹²/ 1*10⁻²   [ N*m² /C²]* C*C/m²

f₁₂ = 252*10⁻¹ [N]

f₁₂ = 25,2 [N]

f₃₂ =  9*10⁹*3,5*10⁻⁶*2,5*10⁻⁶ /(0,15)²

f₃₂ =  78,75*10⁻³/ 2,25*10⁻²

f₃₂ =  35 *10⁻¹

f₃₂ =  3,5 [N]

f(t) =  28,7 [N]

Answer:

facts

Explanation:

How can you best identify quackery in a health service provider?A. The provider does not provide success claims or testimonials.
B. The provider has only one doctor on staff.
O
C. The provider's success claims seem too good to be true.
O
D. The provider is not well known.
SUBMIT

Answers

Answer:

C. The provider's success claims seem too good to be true.

When is momentum conserved?A. it is conserved when only two objects collide; more than two objects can't conserve momentum.

B. it is always conserved.

C. momentum is conserved when the system is closed, which means there are no forces, like friction, acting on it.

D. momentum is never conserved.

Answers

C. momentum is conserved when the system is closed, which means there are no forces, like friction, acting on it.

C. momentum is conserved when the system is closed, which means there are no forces, like friction, acting on it.

I took the test

Which of the following is not an example of potential energy? chemical energy, gravitational energy, thermal energy, nuclear energy

Answers

Answer:

nuclear energy

Explanation:

A 70kg person travels to a planet where he weighs 1750 N. What is the value of g on the that planet?

Answers

25 m/s^2 which is lethal for a human.
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