Question

How do you find fa when the cart needs to stop in a distance and ur given the distance and mass
How do u find current and ressistince when given amount of charge, time and voltage
How do u find frequency when given the length or tge string and the weight of the harmonic

Answer 1

Answer on Question #72863-Physics-Other

How do you find a when the cart needs to stop in a distance and ur given the distance d and mass

Answer

We also need the initial speed v.

$$a = \frac {v ^ {2}}{2 d}$$

How do u find current and resistance when given amount of charge $Q$ , time t and voltage V

Answer

Current is

$$I = \frac {Q}{t}$$

The resistance is

$$R = \frac {U}{I}$$

How do u find frequency when given the length or the string L and the weight of the harmonic T

Answer

We also need the mass of the string m.

The frequency is

$$f = \frac {1}{2 L} \sqrt {\frac {T}{\frac {m}{I}}}$$

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