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lana66690 [7]
2 years ago
15

PLEASE HELP! Describe how you could use a negatively charged Van de Graaff generator to induce a positive charge on a previously

neutral metal sphere. You may use additional materials.
Physics
1 answer:
Gnesinka [82]2 years ago
3 0

Answer:

Van de Graaff inventó el generador que lleva su nombre en 1931, con el propósito de producir una diferencia de potencial muy alta (del orden de 20 millones de volts) para acelerar partículas cargadas que se hacían chocar contra blancos fijos. Los resultados de las colisiones nos informan de las características de los núcleos del material que constituye el blanco.

El generador de Van de Graaff es un generador de corriente constante, mientas que la batería es un generador de voltaje constante, lo que cambia es la intensidad dependiendo que los aparatos que se conectan.

El generador de Van de Graaff es muy simple, consta de un motor, dos poleas, una correa o cinta, dos peines o terminales hechos de finos hilos de cobre y una esfera hueca donde se acumula la carga transportada por la cinta.

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Describe how two isotopes of nitrogen differ from two nitrogen ions???PLEASE ANSWER 20 POINTS
Wewaii [24]

Nitrogen isotopes don't have a charge.


3 0
3 years ago
An object carries a +15.5 µC charge. It is 0.525 m from a -7.25 µC charge. What is the magnitude of the electric force on the ob
lorasvet [3.4K]

Answer:

the force of attraction between the two charges is 3.55 N.

Explanation:

Given;

first charge carried by the object, q₁ = 15.5 µC

second charge carried by the q₂ = -7.25 µC

distance between the two charges, r = 0.525 m

The force of attraction between the two charges is calculated as;

F = \frac{kq_1q_2}{r^2} \\\\F = \frac{(9\times 10^9)(15\times 10^{-6})(7.25\times 10^{-6})}{(0.525)^2} \\\\F = 3.55 \ N

Therefore, the force of attraction between the two charges is 3.55 N.

3 0
3 years ago
The metric system is a measurement system that is: only used by a few of the nations of the world. used exclusively in chemical
inysia [295]

Answer:

The metric system is the official system for all nations of the world.

Explanation:

To make measures, it is necessary to have a set of standardized magnitudes to compare things we want to measure. This set of standardized magnitudes is called a unit system.

The metric system is a decimalized system of measurement which has meters and grams as a basic measurement unit. The metric system is the most used in the world, and also, is the official system for all nations of the world.

7 0
3 years ago
W
Alona [7]

In the circuit, the total current is 60 A and the voltage is 240 V. If R1

resistance is 20 Ω, then the R2 resistance  would be 5 Ω

<h3>What is resistance?</h3>

Resistance is the obstruction of electrons in an electrically conducting material. The SI unit of the resistance is Ohm

The mathematical relation for resistance can be understood with the help of the empirical relation provided by Ohm's law.

V=IR

where V is the voltage

I is the current

R is the resistance

For the given problem V= 240 V and I = 60 A

R = V/I

R =240/60

R =4 Ω

For calculating equivalent resistance in parallel combination.

1/Re = 1/R1  + 1/R2

1/4 = 1/20 +  1/R2

R2 = 5 Ω

Thus , the R2 resistance would be 5 Ω, therefore the correct answer is option B.

Learn more about resistance here

brainly.com/question/14547003

#SPJ1

7 0
1 year ago
A little help please?
Elanso [62]
The answer is D, Carbon and hydrogen
8 0
3 years ago
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