2 years ago

A transport truck pulls on a trailer with a force of 600N [E]. The trailer pulls on the transport truck with a force

2 answers:

kramer2 years ago

6 0

These forces form a force pair. Use Newton's third law, and you see that the trailer pulls back at with the same force. The answer is d.

Dennis_Churaev [7]2 years ago

5 0

D because newton's third laws states for every force there is an equal and opposite force.

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Length of two cylinders are measured to be L1 = 5.62 +/- 0.01cm and L2 = 4.34 +/- 0.02cm.

zavuch27 [327]

Answer:

Explanation:

Just look at the figure

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2 years ago

1) My 14V car battery could be used to charge my laptop, but I need to use an inverter to first convert it to a standard 120V. T

LenaWriter [7]

Answer:

1) Charge chord resistance is 75 Ω

2) Charge chord resistance is 6.33 Ω

Explanation:

1) To answer the question, we note that the the formula voltage is found as follows;

V = IR

Therefore,

$R = \frac{V}{I} = \frac{120}{1.6} = 75 \, \Omega$

2) Where the voltage, V = 19.5 V and the current, I = 3.33 A, we have;

Initial resistance R₁ = 19.5 V/(3.33 A) = 5.86 Ω

However, to reduce the current to 1.6 A, we have;

$R_T = \frac{19.5}{1.6} = 12.1875 \ \Omega$

Therefore, where the resistance is found by the sum of the total resistance we have;

$R_T$ = R₁ + Charge chord resistance

∴ 12.1875 = 5.86 + Charge chord resistance

Hence, charge chord resistance = 6.33 Ω

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2 years ago

Which changes in an electric motor will make the motor stronger? Check all that apply.

ollegr [7]

To make the motor turn faster we can:
(a) increase the current
(b) use stronger magnets
(c) push the magnets closer to the coil
(d) put an iron centre piece into the coil
(e) adding more sets of coils

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An elevator has a weight of 14,700 N and has an acceleration of –0.30 m/s2. The free-body diagram shows the forces acting on the

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14250. I just took it

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2 years ago

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Which statement correctly describes the relationship between frequency and wavelength?

Len [333]

The relationship between the frequency and wavelength of a wave is given by the equation:

v=λf, where v is the velocity of the wave, λ is the wavelength and f is the frequency.

If we divide the equation by f we get:

λ=v/f

From here we see that the wavelength and frequency are inversely proportional. So as the frequency increases the wavelength decreases.

So the second statement is true: As the frequency of a wave increases, the shorter the wavelength is.

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2 years ago

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