3 years ago

What are machines fueled by?

Physics

2 answers:

sveta [45]3 years ago

7 0

A or D most likely d so I pick D

Ilia_Sergeevich [38]3 years ago

3 0

(AB) & (CD)
Most machines are fueled by gasoline and electricity

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A very long wire carries a uniform linear charge density of 7.0 nC/m. What is the electric field strength 16.0 m from the

jok3333 [9.3K]

Electric field due to a long wire is given by

$E = \frac{2 k \lambda}{r}$

here

$k = 9 * 10^9$

$\lambda = 7*10^{-9}$

r = 16 m

$E = \frac{2*9*10^9 *7*10^{-9}}{16}$

$E = 7.875 N/C$

6 0

4 years ago

Two objects, one of mass m and the other of mass 2m, are dropped from the top of a building. If there is no air resistance, when

Lelechka [254]

Answer:

option b

Explanation:

the heavier one will have twice the kinetic energy of the lighter one

5 0

3 years ago

(d)

deff fn [24]

Answer:

Frequency = 24 × 10⁸ Hz

Explanation:

Given the following data;

Speed = 3 × 10⁸ m/s

Wavelength = 0.125 meters

To find the frequency of the electromagnetic wave;

Mathematically, the speed of a wave is given by the formula;

Speed = Wavelength × frequency

Substituting into the formula, we have;

3 × 10⁸ = 0.125 × frequency

Frequency = (3 × 10⁸)/0.125

Frequency = 24 × 10⁸ Hz

3 0

3 years ago

I don't know how to figure it out

drek231 [11]

Nice couch lol
and aluminum I think

4 0

4 years ago

How much does the speed of a car increase if it accelerates

Nata [24]

Answer:

12.5 m/s

Explanation:

a = Δv / Δt

2.5 m/s² = Δv / 5 s

Δv = 12.5 m/s

4 0

3 years ago