Plz help me with this!

Answers

Answer 1

Answer: A conductor is something which allows electricity to pass through it
an example is a coin
An insulator is something which cannot allow electricity to pass through it
an example is plastic (or plastic cotton reel, plastic container ect.)
Static electricity is when you rub two things together to create static

I'm not sure if i helped on the last question but i am definitely sure of the first ones

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How a charge and ions are connected

Answers

The two terms are connected because in a chemistry view ions can have a charge added to them. Such as the element of Iodine.

Ions have a positive charge.

A car is traveling at 20 m/s. It takes the car 120s to go from one intersection to a second. What was the displacement of the car between the two intersections?

Answers

We don't know if the road is perfectly straight between the intersections, or if the road bends, curves, or turns between them. So we don't have enough information to calculate the displacement between them.

But we can calculate the distance the car traveled between them.

Distance = (speed) (time)

Distance = (20 m/s) (120 s)

Distance = 2,400 meters

A sports car is travelling at a constant velocity v = 5.00 m/s. The driver steps on the gas, and the car accelerates forward. After 10.0 seconds, the driver stops accelerating and maintains a constant velocity v = 25.0 m/s. What was the car’s acceleration?

Answers

The answer is v=2.00 m/s per second for the 10 seconds

Nuclei of u-238 atoms are

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Nuclei of U-238 atoms are unstable and radioactive isotope of uranium . It decays naturally and emits alpha (α) particle.

What is Nuclei of uranium ?

The actinide series includes the metallic, silver-gray element uranium (U). It serves as the primary fuel for nuclear reactors and is also a component of nuclear weapons.

Since uranium has an atomic number of 92, its atomic structure consists of 92 protons and 92 electrons. The nucleus of U-238 contains 146 neutrons, but this number can range from 141 to 146. Due to its radioactivity, uranium constantly emits particles and transforms into new elements.

There is a recognized radioactive decay series for uranium. The most prevalent uranium isotopes are U-238 and U-235 (which has 143 neutrons). All three isotopes of uranium (U-238, 235, and 234) are present in nature, and variations from the typical composition are rarely greater than 0.01%.

Learn more about uranium, refer the link:

brainly.com/question/9099776

#SPJ5

Nuclei of u-238 atoms are unstable and spontaneously emit alpha particles.

Draw a vector for a force of 69 N @ 76 degrees

Answers

Answer:

The force is shown in the figure below which is 69 N at 76° from the positive x-axis

there are two component Fx and Fy which are in the direction of x-axis and y-axis.

76= $\sqrt{Fx^(2) +Fy^(2) }$

How does the mass of an object affect its acceleration during a freefall?

Answers

There is a big misconception about this but I will try to clear it up:
Think about this, if you drop a feather and a marble from the same beginning point then they will both fall at the same rate. This is because, mass doesn't affect the speed of falling objects, however, if there are other factors involved other than gravity then the answer may vary.

Hope this helped