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4 years ago

yesenia wants to bake cookies in her electric oven. the oven will transform electrical energy into ________ energy?

Physics

2 answers:

stealth61 [152]4 years ago

7 0

<span>The oven will transform electrical energy into ________ energy

Into Heat Energy.</span>

lana [24]4 years ago

5 0

<span>The oven will transform electrical energy into heat energy</span>

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For this car, predict the shape of a graph that shows distance (x) versus time (t). Note that time is the independent variable a

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Idk I haven’t learned this yet

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3 years ago

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Electro-magnets are created by...

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Wrapping in insulated wire around a medal with ferromagnetic properties and applying an electric current

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3 years ago

A record of travel along a straight path is as follows:

nignag [31]

Answer:

a) Total displacement = 3986.54 m

b) Average speeds

Leg 1 -> 11.22 m/s

Leg 2 -> 22.44 m/s

Leg 3 -> 11.20 m/s

Complete trip -> 21.63 m/s

Explanation:

a) Leg 1:

Initial velocity, u = 0 m/s

Acceleration , a = 2.04 m/s²

Time, t = 11 s

We have equation of motion s= ut + 0.5 at²

Substituting

s= ut + 0.5 at²

s = 0 x 11 + 0.5 x 2.04 x 11²

s = 123.42 m

Leg 2:

We have equation of motion v = u + at

Initial velocity, u = 0 m/s

Acceleration , a = 2.04 m/s²

Time, t = 11 s

Substituting

v = 0 + 2.04 x 11 = 22.44 m/s

We have equation of motion s= ut + 0.5 at²

Initial velocity, u = 22.44 m/s

Acceleration , a = 0 m/s²

Time, t = 2.85 min = 171 s

Substituting

s= ut + 0.5 at²

s = 22.44 x 171 + 0.5 x 0 x 171²

s = 3837.24 m

a) Leg 3:

Initial velocity, u = 22.44 m/s

Acceleration , a = -9.73 m/s²

Time, t = 2.31 s

We have equation of motion s= ut + 0.5 at²

Substituting

s= ut + 0.5 at²

s = 22.44 x 2.31 + 0.5 x -9.73 x 2.31²

s = 25.88 m

Total displacement = 123.42 + 3837.24 + 25.88 = 3986.54 m

Average speed is the ratio of distance to time.

b) Leg 1:

$v_{avg}=\frac{123.42}{11}=11.22m/s$

Leg 2:

$v_{avg}=\frac{3837.24}{171}=22.44m/s$

Leg 3:

$v_{avg}=\frac{25.88}{2.31}=11.20m/s$

Complete trip:

$v_{avg}=\frac{3986.54}{11+171+2.31}=21.63m/s$

5 0

3 years ago

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm (red) and 486 nm (blue). Light f

Georgia [21]

Answer:

Δd = 7.22 10⁻² m

Explanation:

For this exercise we must use the dispersion relationship of a diffraction grating

d sin θ = m λ

let's use trigonometry

tan θ = y / L

how the angles are small

tant θ = sinθ /cos θ = sin θ

we substitute

sin θ = y / L

d y / L = m λ

y = m λ L / d

let's use direct ruler rule to find the distance between two slits

If there are 500 lines in 1 me, what distance is there between two lines

d = 2/500

d = 0.004 me = 4 10⁻⁶ m

diffraction gratings are built so that most of the energy is in the first order of diffraction m = 1

let's calculate for each wavelength

λ = 656 nm = 656 10⁻⁹ m

d₁ = 1 656 10⁻⁹ 1.7 / 4 10⁻⁶

d₁ = 2.788 10⁻¹ m

λ = 486 nm = 486 10⁻⁹ m

d₂ = 1 486 10⁻⁹ 1.7 / 4 10⁻⁶

d₂ = 2.066 10⁻¹ m

the distance between the two lines is

Δd = d1 -d2

Δd = (2,788 - 2,066) 10⁻¹

Δd = 7.22 10⁻² m

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3 years ago

An object of mass m attached to a spring of force constant k oscillates with simple harmonic motion. The maximum displacement fr

Lady_Fox [76]

An object of mass m attached to a spring of force constant k oscillates with simple harmonic motion. The system's potential energy when kinetic energy of (3/4) E is (1/8) k A².

<h3>What is mechanical energy?</h3>

Mechanical energy is the sum of potential energy and kinetic energy.

Total mechanical energy = P.E max = K.E max

Total mechanical energy = K.E +P.E

Given is the kinetic energy is (3/4)E.

E= (3/4)E + P.E

P.E = (1/4) E

Maximum potential energy =E = (1/2) k A²

Here. A is the maximum displacement and k is the spring constant.

The potential energy at kinetic energy of (3/4) E is

P.E = (1/4)E = (1/8) k A²

Therefore, the system's potential energy when kinetic energy of (3/4) E is (1/8) k A².

Learn more about mechanical energy.

brainly.com/question/20904200

#SPJ4

6 0

2 years ago