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3 years ago

Compare and contrast Continental Drift and Plate Tectonics.

Physics

1 answer:

Vladimir79 [104]3 years ago

8 0

Answer:

1. They both have a natural relationship with friction and temperature along with psychics 2. they all have different natural bioms

Explanation:

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Why is it difficult to see colors outside at night?

Stella [2.4K]

I choose D. but I'm not sure if it's right yet. Let me know if it was :)

7 0

3 years ago

When 0.250 moles of licl are added to 200.0g of water in a constant pressure?

Mariana [72]

Lithium Chloride releases 37 kJ of energy per mole when dissolved in water.
Energy released = 0.25 x 37
= 9.25 kJ
= 9,250 J
Temperature change of water may be calculated using
ΔH = mCpΔT
Cp = 4.18 J/g

ΔT = 9,250 / (200 x 4.18)
ΔT = 11.1 °C

6 0

3 years ago

Voltage needed to raise current to 3.75a using 20,20,200 resistor set

Varvara68 [4.7K]

<u>Answer:</u> The voltage needed is 35.7 V

<u>Explanation:</u>

Assuming that the resistors are arranged in parallel combination.

For the resistors arranged in parallel combination:

$\frac{1}{R}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}$

We are given:

$R_1=20\Omega\\R_2=20\Omega\\R_3=200\Omega$

Using above equation, we get:

$\frac{1}{R}=\frac{1}{20}+\frac{1}{20}+\frac{1}{200}\\\\\frac{1}{R}=\frac{10+10+1}{200}\\\\R=\frac{200}{21}=9.52\Omega$

Calculating the voltage by using Ohm's law:

$V=IR$ .....(1)

where,

V = voltage applied

I = Current = 3.75 A

R = Resistance = $9.52\Omega$

Putting values in equation 1, we get:

$V=3.75\times 9.52\\\\V=35.7V$

Hence, the voltage needed is 35.7 V

7 0

3 years ago

Read 2 more answers

If Vx = 7.00 units and Vy = -7.60 units, determine the magnitude of V⃗ .

Juliette [100K]

|V| = 10.33 units and the direction θ = -47.35° or 312.65°.

Given the x and y components of a vector, we can calculate the magnitude and direction from these components.

Applying the Pythagorean theorem we have that the magnitude of the vector is:

|V| = $\sqrt{Vx^{2}+Vy^{2} }$

|V| = $\sqrt{(7.00units)^{2}+(-7.60units)^{2}} = \sqrt{106units^{2}} = 10.33units$

The expression for the direction of a vector comes from the definition of the tangent of an angle:

tan θ = $\frac{Vy}{Vx}$ ------> θ = arc tan $\frac{Vy}{Vx}$

θ = arc tan $\frac{-7.60units}{7.00units}$

θ = -47.35° or 312.65°

6 0

3 years ago

A car, starting from the origin, travels 4 km east and then 7 km west. What is the traveled distance of the car from the initial

katrin2010 [14]

The traveled distance of the car from the initial point is (4+7) Km, i.e., 11 Km.

3 0

3 years ago