PHYSICS HIGH SCHOOL

Which particle is not part of an atom?a. proton
b. electron
c. neutron
d. magnetic domain

Answers

Answer 1

Answer:

Answer:

Option D is the correct answer.

Explanation:

An atom consists of nucleus and electrons revolving around it.

Nucleus is filled with proton and neutron.

So atom consists of electron, proton and neutron.

Magnetic domain is not present in an atom.

Option A,Option B and Option C are present in an atom.

Option D is not present in an atom.

So Option D is the correct answer.

Answer 2

Answer: the particle that is not a part of the atom is the magnetic domain

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A pendulum takes .5 seconds tp complete one cycle. what is the pendulum"s period and frequency?

Answers

You just told us how long the pendulum takes to complete one cycle. That's the definition of the period. Its 1/2 second.

The frequency is the reciprocal of the period. That's 2 per second. Or 2 Hz.

What is Newton's third law motion answer part a and b

Answers

Answer:

hope it helps

Explanation:

Newtons third law is that objects exert equal and opposite forces on each other.

'every action has an equal and opposite reaction'.

Answer:

to every action there's equal and opposite reaction

How does an antenna’s receiving circuit select electromagnetic radio waves of a certain frequency and reject all others?

Answers

An antenna’s receiving circuit select electromagnetic radio waves of a certain frequency and reject all others. This is because an antenna IS an electromagnetic radiator that creates an electromagnetic field that scatters from the transmitting antenna to the receiver’s antenna.

What effect did the Cold War have on the American space program?A. High levels of military spending deterred scientific research.
B. The need for nuclear weapons led to less sophisticated rocket technology.
C. American and Soviet scientific cooperation lessened political tension.
D. Competition with the Soviet Union spurred American space missions

Answers

The answer is D.Competition with the Soviet Union spurred American space missions.

♡♡Hope I helped!!! :)♡♡

Competition with the Soviet Union spurred American space missions.

A 1200 kg car starts from rest and travels 100m in a time of 10 seconds . A) what is the acceleration of the car? B) what force must have acted on the car during this time? C) what is the velocity of the car after 10 seconds? D) what work was done on the car? E) what minimum power did the engine produce?

Answers

Given:
Mass (m) = 1200 kg
Distance (s) = 100 m
Time (t) = 10 seconds
Now,
$velocity (v) = (distance)/(time)$

= $(100~ m)/(10~seconds)$

= 10 m/s
Note that this one is the final velocity.
We also know that,
initial velocity (u) = 0 m/s .......because the car starts from rest.
Now,
$acceleration (a)= (change~in~velocity)/(time)$

= $(v-u)/(t)$

= $(10-0)/(10)$

= 1 m/s²
Now,
Force (F) = mass (m) * acceleration (a)
= 1200 kg * 1 m/s²
= 1200 kg.m/s²
= 1200 N
Now,
Work Done (W) = Force (F) * displacement (s) ....note that displacement is same as distance.
= 1200 N * 100 m
= 120000 N.m
= 120000 J
Now,
Power (P) = $(Work~done(W))/(time(t))$

= $(120000~J)/(10s)$

= 12000 J/s
= 12000 watt
SO,
A) The acceleration of the car is 1 m/s².
B) 1200 Newton (N) force must have acted on the car.
C) The velocity of the car after 10 seconds is 10 m/s.
D) 120000 Joule (J) work was done on the car.
E) The engine produced a minimum power of 12000 watt.

According to the theory of plate tectonics, which forces cause the movement of plates in the earth's crust? A. Magnetism and Solar Radiation
B. Earthquakes and Volcanic Eruptions
C. Convection and The Moons Gravitational Pull
D. Convection and Gravity