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2 years ago

Hi! Whoever can answer this question the best I will give the brainliest answer!!

1 answer:

6 0

A battery is a device that stores chemical energy and converts it to electrical energy. Two terminals made of different chemicals (typically metals), the anode and the cathode; and the electrolyte, which separates these terminals.
Hope I get it and hope this helps

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When an excited electron in a hydrogen atom falls from the n = 3 to the n = 2 level, a photon of red light is emitted from the a

Kaylis [27]

Answer: 653.33 nm ; 1875, 24 nm

Explanation: For the first case we have to use the Balmer series for the hydrogen when the atom falls from the n = 3 to the n = 2. So for the second transtions for the hydrogen we use the Paschen serie. To do the calculation we need to know the Ryberg constant that is equal to 1.097 * 10^7 m^-1. In the attach is shown the expression for spectral series used for calculation.

3 0

3 years ago

A 6.3 μC electric charge is placed in an Electric Field with a magnitude of 5.0 x 105 charge due to the Electric Field? N/C. Wha

EastWind [94]

Answer:

F = 3.15 N

Explanation:

Given electric charge, q = 6.3 μC

The magnitude of electric field, $E=5\times 10^5\ N/C$

We need to find the electric force on the charge due to the electric field. The electric force is given by :

F = qE

Putting all the values,

$F=6.3\times 10^{-6}\times 5\times 10^5\\\\F=3.15\ N$

So, the required force on the charge is 3.15 N.

7 0

3 years ago

Newton's First Law is also called the Law of Inertia. Which of the objects below has the most inertia, the white truck or yellow

Deffense [45]

Answer:

Personally I say the yellow truck but...

Explanation:

It's heavily based on the object's mass...

If you know which object has the most mass than I would choose that one, but personally I think the yellow one has the most mass...

4 0

2 years ago

A Ferris wheel with a 15-m radius makes three complete revolutions in one minute about its horizontal axis. What is the magnitud

Kay [80]

Answer:

$1.48 m/s^2$ , upward

Explanation:

The passenger on the wheel experiences a centripetal acceleration, which is the one that keeps him in a circular motion.

The direction of this acceleration is always towards the centre of the circular trajectory: so when the passenger is at the lowest point of the ride, the acceleration is upward.

Concerning the magnitude, it is given by

$a=\omega^2 r$

where

$\omega$ is the angular velocity

r = 15 m is the radius

We need to find the angular velocity; we know that the wheel completes 3 revolutions in one minute. Each revolution corresponds to an angle of $2\pi$ rad, so the total angular displacement is

$\theta = 3 \cdot 2\pi = 6\pi$ rad

And the time is

$t = 1 min = 60 s$

So the angular velocity is

$\omega = \frac{6\pi}{60 s}=0.314 rad/s$

And substituting into the equation of the acceleration,

$a=(0.314)^2(15)=1.48 m/s^2$

4 0

3 years ago

1) Num sistema isolado tenho 4 tipos de corpos diferentes. A, B, C e D. A está em equilíbrio térmico com B. B está em equilíbrio

liberstina [14]

Answer:

Yes.

Explanation:

Yes, this system transmitting energy between your bodies because everybody is in thermal equilibrium with other body. Thermal equilibrium occurs when there is same amount of thermal energy is gained by the body and same amount of energy lost by the body so there is no increase or decrease occur in the thermal energy of each body so we can say that the system transmitting energy between the bodies.

8 0

3 years ago