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3 years ago

What is the first step in problem solving?

Physics

2 answers:

emmasim [6.3K]3 years ago

5 0

Answer:

identify the problem

Explanation:

zmey [24]3 years ago

4 0

The first step in problem solving is of course, identifying the problem. How could you solve the problem if there is no problem in the first place? When one gets to identify the problem, the next step is gathering of information to know more about the problem. One needs to get to know and examine the pros – the benefits – and con – the flaws – of the problem well. After doing all the needed data gathering and possibly, experimentation, when can start looking for the possible solutions of the problem. <span> </span>

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A flat loop of wire consisting of a single turn of cross-sectional area 8.00 cm2 is perpendicular to a magnetic field that incre

abruzzese [7]

The area enclosed by the wire is
$A=8.00 cm^2 = 8.00 \cdot 10^{-4} m^2$

By using Faraday-Neumann-Lenz law, we can find the emf induced in the circuit, whose magnitude is equal to the variation of magnetic flux on the wire:
$\epsilon = \frac{\Delta \Phi}{\Delta t}= \frac{\Delta B A}{\Delta t}= \frac{(2.2 T-0.5 T)(8 \cdot 10^{-4} m^2)}{1.08 s}=1.26 \cdot 10^{-3} V$

And then, by using Ohm's law, we can find the induced current:
$I= \frac{\epsilon}{R}= \frac{1.26 \cdot 10^{-3} V}{2.60 \Omega}=4.86 \cdot 10^{-4}A$

3 0

3 years ago

A stone is dropped off of a 123 meter cliff and falls to the ground below. How long does it take for the stone to hit the ground

tensa zangetsu [6.8K]

25.10 or 24.6m/s both answers are correct

Explanation:

firstly , divide the multiply with 2 and divide the result by acceleration due to gravity which is 9.8m/s or 10m/s

123*2=246

246/9.8 or 10

= 25.10 or 24.6m/s

8 0

3 years ago

What is the Electron Geometry of a AB4 molecule? A. bent B. trigonal planar C. linear D. tetrahedral

34kurt

Answer:

D.Tetrahedral

Explanation:

The central atom has 0 lone pair and 4 bond pairs. Hybridization is sp³. The geometry is tetrahedral which has an angle of 109.5°.

According to VSEPR theory, each molecule arranges itself such that it faces minimum repulsion and the given molecule is of type $AB_4$ .

Therefore the answer will be D.

D.Tetrahedral

4 0

3 years ago

A(n) 28.3 g bullet is shot into a(n) 5004 g wooden block standing on a frictionless surface. The block, with the bullet in it, a

Natali [406]

Answer:

the speed of the bullet before striking the block is 302.3 m/s.

Explanation:

Given;

mass of the bullet, m₁ = 28.3 g = 0.0283 kg

mass of the wooden block, m₂ = 5004 g = 5.004 kg

initial velocity of the block, u₂ = 0

final velocity of the bullet-wood system, v = 1.7 m/s

let the initial velocity of the bullet before striking the block = u₁

Apply the principle of conservation of linear momentum to determine the initial velocity of the bullet.

m₁u₁ + m₂u₂ = v(m₁ + m₂)

0.0283u₁ + 5.004 x 0 = 1.7(0.0283 + 5.004)

0.0283u₁ = 8.5549

u₁ = 8.5549 / 0.0283

u₁ = 302.3 m/s

Therefore, the speed of the bullet before striking the block is 302.3 m/s.

4 0

3 years ago

You can use a system of equations to graph and solve the polynomial equation 3 x cubed + x = 2 x squared + 1. Which statement is

GuDViN [60]

The equation has one zero, and the system has three solutions ( 1 real and 2 complex solutions).

<h3>Solution of the polynomial equation</h3>

The solution of the polynomial equation is determined as follows;

3x³ + x = 2x² + 1

3x³ - 2x² + x - 1 = 0

$3(x - \frac{2}{9} )^3+ \frac{5}{9} (x - \frac{2}{9} )- \frac{205}{243} = 0\\\\x = 0.78 \ (one \ real \ solution)\\\\x = -0.058-0.65i\\\\x = -0.058+0.65i \ \ (2 \ complex \ solutions)$

Thus, we can conclude that the equation has one zero (real solution), and the system has three solutions ( 1 real and 2 complex solutions).

Learn more about polynomial equations here: brainly.com/question/2833285

#SPJ1

5 0

2 years ago