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3 years ago

Planets A and B have the same mass, but planet A is half the size of planet B.

Physics

2 answers:

stiv31 [10]3 years ago

8 0

Answer:

Explanation:

i took test

levacccp [35]3 years ago

5 0

Answer: C

Explanation: I just finished the test on A P E X :)

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Which subatomic particle can be absent from an atom?

Alika [10]

Neutron can be absent

5 0

3 years ago

21. As a future healthcare professional, how could you use operant conditioning to minimize a patients’ fears or anxieties? (Rem

konstantin123 [22]

Answer:

Try to be their friend

Explanation:

Ask what sports they like

Connect to them

Tell them embarrassing stories that happened to you

Always say that everything will be okay

5 0

3 years ago

A long, thin solenoid has 450 turns per meter and a radius of 1.17 cm. The current in the solenoid is increasing at a uniform ra

sergey [27]

Answer:

$\frac{di}{dt} = 7.31 \ A/s$

Explanation:

From the question we are told that

The number of turns is $N = 450 \ turns$

The radius is $r = 1.17 \ cm = 0.0117 \ m$

The position from the center consider is x = 3.45 cm = 0.0345 m

The induced emf is $e = 8.20 *10^{-6} \ V/m$

Generally according to Gauss law

$\int\limits { e } \, dl = \mu_o * N * \frac{di}{dt } * A$

=> $e * 2\pi x = \mu_o * N * \frac{d i }{dt } * A$

Where A is the cross-sectional area of the solenoid which is mathematically represented as

$A = \pi r ^2$

=> $e * 2\pi x = \mu_o * N * \frac{d i }{dt } * \pi r^2$

=> $\frac{di}{dt} = \frac{2e * x }{\mu_o * N * r^2}$ ggl;

Here $\mu_o$ is the permeability of free space with value

$\mu_o = 4\pi * 10^{-7} \ N/A^2$

=> $\frac{di}{dt} = \frac{2 * 8.20*10^{-6} * 0.0345 }{ 4\pi * 10^{-7} * 450 * (0.0117)^2}$

=> $\frac{di}{dt} = 7.31 \ A/s$

6 0

4 years ago

Find the x-component of this vector: 47.3 m 39.4 ° Remember, angles are measured from the + x axis. x-component (m)

Stells [14]

The answer to this question is 86.7

3 0

3 years ago

Read 2 more answers

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