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3 years ago

What are the five practices in scientific inquiry

1 answer:

5 0

1. Learners are engaged by scientifically oriented questions.
2. Learners give priority to evidence, allowing them to develop and
evaluate explanations that address scientifically-oriented questions.
3. earners formulate explanations form evidence to address scientifically
oriented question
4. Learners evaluate their explanations in light of alternative explanations,
particularly those reflecting scientific understanding.
5. Learners communicate and justify their proposed explanations.

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If i like a boy and he dont like me what should i do? If we like each other what should i do?

crimeas [40]

Answer:

If he doesn't like you then hang out with him more but if he does then try to keep your cool

Explanation:

hope this helps

3 0

3 years ago

Read 2 more answers

A long wire carrying a 5.8 A current perpendicular to the xy-plane intersects the x-axis at x=−2.3cm. A second, parallel wire ca

adoni [48]

Answer:

a) v r = 0.7318 cm , b) r = 7.23 cm

Explanation:

The magnetic field generated by a wire carrying a current can be found with Ampere's law

∫ B. ds = μ₀ I

the length of a surface circulates around the wire is

s = 2π r

where r is the point of interest of the calculation of the magnetic field

B = μ₀ I / 2π r

In this exercise we have two wires, write the equation of the magnetic field of each one

wire 1 I = 5.8 A

B₁ = μ₀ 5,8 / 2π r₁

wire 2 I = 3.0 A

B₂ = μ₀ 3/2π r₂

the direction of the field is given by the rule of the right hand, the thumb indicates the direction of the current and the other fingers the direction of the magnetic field

Let's apply these expressions to our case

a) the two streams go in the same direction

using the right hand rule for each wire we see that between the two wires the magnetic fields have opposite directions so there is some point where the total value is zero

B₁ - B₂ = 0

B₁ = B₂

μ₀ 5,8 / 2π r₁ = μ₀ 3 / 2π r₂

5.8 / r₁ = 3 / r₂

5.8 r₂ = 3r₁

the value of r is measured from each wire, therefore

r₁ = 2.3 + r

r₂ = 2.3 -r

we substitute

5.8 (2.3 - r) = 3 (2.3 + r)

r (3 + 5.8) = 2.3 (5.8 - 3)

r = 2.3 2.8 / 8.8

r = 0.7318 cm

b) the two currents have directional opposite

with the right hand rule in the field you have opposite directions outside the wires

suppose it is zero on the right side where the wire with the lowest current is

B₁ = B₂

5.8 / r₁ = 3 / r₂

5.8 r₂ = 3 r₁

r₁ = 2.3 + r

r₂ = r - 2.3

5.8 (r - 2.3) = 3 (2.3 + r)

r (5.8 -3) = 2.3 (3 + 5.8)

r = 2.3 8.8 / 2.8

r = 7.23 cm

8 0

2 years ago

Consider a traveling wave described by the formula

Harrizon [31]

Answer:

The wave is traveling in the +x direction.

Explanation:

The equation of a wave is given by the formula as :

$y(x,t)=A\ sin(kx-\omega t)$

Here,

A is the amplitude of wave

$(kx-\omega t)$ is the phase of wave

$\omega$ is the angular frequency of the wave

We need to find the correct statement out of given options. The given equation can be rewritten as :

$y(x,t)=A\ sin(\omega t-kx)$

Here, the propagation constant is negative. So, the wave is moving in +x direction. Hence, the correct option is (a).

4 0

3 years ago

A ring of diameter 7.70 cm is fixed in place and carries a charge of 5.00 mC uniformly spread over its circumference. (a) How mu

MatroZZZ [7]

Answer:

3.974 Joule

Explanation:

Diameter of ring = 7.7 cm

a = Distance from the center = d/2 = 3.85 cm = 0.0385 m

Q = Charge = 5 mC

q = Charge to move = 3.4 mC

k = Coulomb constant = 9×10⁹ Nm²/C²

Work done will be equal to Potential energy when mass is at center

$U=\frac{kQq}{a}\\\Rightarrow U=\frac{9\times 10^9\times 5\times 10^{-6}\times 3.4\times 10^{-6}}{0.0385}=3.974\ J$

∴ Work to move a tiny 3.4 mC charge from very far away to the center of the ring is 3.974 Joule

4 0

3 years ago

Read 2 more answers

Stephanie is riding her bicycle to the park. The chemical energy used to pedal the bicycle is transformed into __________.

Jet001 [13]

Answer:I'm gonna say mechanical or kinetic depending on how you look at it.

Explanation:

4 0

2 years ago

Read 2 more answers