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3 years ago

An ipod uses a standard 1.7 volt battery. How much resistance is in the circuit if it uses a current of 0.03 amps

Physics

1 answer:

natali 33 [55]3 years ago

7 0

Answer:

R = V ÷ I = 1.5V ÷ 0.01A = 150Ω

Explanation:

150 is the answer:)

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If the moon is rising at midnight, the phase of the moon must be

Nadya [2.5K]

The phase is called 3rd quarter.

Hope this helps:)

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3 years ago

Which two questions can be used to identify criteria for how successful the design of an efficient high altitude drone is?

AfilCa [17]

Answer:

Explanation:

Remark

Though you do not know what height the previous drone reached, I would think reading 8000 m would be quite an accomplishment. Answer 1: A

B: I wouldn't pick B. Increased cost isn't going to contribute to design success.

C. If the efficiency is low to start with, increasing it some won't matter. On the other hand if the efficiency is moderate or good increasing it by 35% is a good thing. Let's hold on to this answer.

D: It has to work at low altitudes in order to work at high altitudes. I wouldn't pick D

E: Popularity is something you never know will happen. I think C is your best second answer.

Answer: A and C

7 0

2 years ago

How to calculate? I got 15000N for (a)

MAXImum [283]

Your answer for part a is correct. Using Newton's 3rd Law, the force on the rocket by the exhaust leaving the rocket is the same magnitude (opposite direction) as the downward force applied to the exhaust.
In part b the net force is the upward force from the exhaust thrust minus the downward force of gravity:

$F_{net}=F_{thrust}-mg=15,000N-1500kg \times 1.6 \frac{m}{s^2}=12,600N$

Then using the Second Law, we get for part c:

$F=ma \\ a= \frac{F}{m} = \frac{12600N}{1500kg} =8.4 \frac{m}{s^2}$

The force and acceleration are in the upward direction

3 0

3 years ago

Suppose that the strings on a violin are stretched with the same tension and each has the same length between its two fixed ends

lesya692 [45]

Answer:

0.00384 kg/m

Explanation:

The fundamental frequency of string waves is given by

$f=\frac{1}{2L}\sqrt{\frac{F}{\mu}}$

For some tension (F) and length (L)

$f\propto\frac{1}{\mu}$

Fundamental frequency of G string

$f_G=196\ Hz$

Fundamental frequency of E string

$f_E=659.3\ Hz$

Linear mass density of E string is

$\mu_E=3.4\times 10^{-4}\ kg/m$

So,

$\frac{F_G}{F_E}=\sqrt{\frac{\mu_E}{\mu_G}}\\\Rightarrow \frac{F_G^2}{F_E^2}=\frac{\mu_E}{\mu_G}\\\Rightarrow \mu_G=3.4\times 10^{-4}\times \frac{659.3^2}{196^2}\\\Rightarrow \mu_G=0.00384\ kg/m$

The linear density of the G string is 0.00384 kg/m

4 0

3 years ago

The principle of conservation of energystates that energy is neither created nor destroyed. Which of thefollowing describes the

bezimeni [28]

Answer: the statement that describes the transformation of energy is statement B (The potential energy was turned into Albertine's kinetic energy, which was then converted into internal(thermal) energy.)

Explanation:

Law of conservation of energy states that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.

Throughout Albertine's journey, no energy was lost. Her potential energy was converted to kinetic energy and then to thermal energy of the body.

5 0

3 years ago

An ipod uses a standard 1.7 volt battery. How much resistance is in the circuit if it uses a current of 0.03 amps​

An ipod uses a standard 1.7 volt battery. How much resistance is in the circuit if it uses a current of 0.03 amps