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Bingel [31]
3 years ago
9

How are speed and velocity similar ?

Physics
2 answers:
Anna [14]3 years ago
8 0
I would say A to Bc that what I think it is
Serhud [2]3 years ago
3 0
I agree with you the answer is A

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D. between radio waves and microwaves
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An advantage of light microscopes compared to electron microscopes is that light microscopes _____.
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5 0
2 years ago
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A 70 kg base runner begins his slide into second base while moving at a speed of 4.35 m/s. He slides so that his speed is zero j
sladkih [1.3K]

Answer

given,

Mass of the runner, M = 70 Kg

speed of the runner on the second base = 4.35 m/s

speed at the base = 0 m/s

Acceleration due to gravity,g = 9.8 m/s²

a) magnitude of mechanical energy lost

  Mechanical energy lost is equal top gain in kinetic energy

   ME_{Lost}=\dfrac{1}{2}mv^2

   ME_{Lost}=\dfrac{1}{2}\times 70\times 4.35^2

   ME_{Lost}=662.29\ J

b) Work done = Force x displacement

    W = F. x

     F = μ mg

    W = μ mg . x

Work done is equal to 662.29 J

  x=\dfrac{W}{\mu m g}

using the coefficient of the friction,μ = 0.7

  x=\dfrac{662.29}{ 0.7\times 70\times 9.8}

     x = 1.38 m

Hence, the runner will slide to 1.38 m.

3 0
3 years ago
Find the frequency if the period is 15 us.
Sav [38]

Answer:

The frequency is 0.667× 10^{6} Hz.

Explanation:

  1. Period is defined as the time taken by any element to attempt one complete oscillatory motion in one second.
  2. Frequency is the number of complete oscillations made in one second.
  • Frequency and period are inversely proportional to each other.
  • In mathematical term: frequency = \frac{1}{period}.
  • As we are given, period = 15×10^{-6} s.
  • We can easily calculate frequency as: f\\= \frac{1}{15. 10^{-6} }
  • So frequency is f= 0.667× 10^{6} Hz.
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3 years ago
If the voltage in a wire is 10 volts, and the current is 5 amps, what is the resistance in the wire? Show work. Please put units
aniked [119]

Answer:2 ohm

Explanation:

5 0
3 years ago
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