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Brrunno [24]
4 years ago
12

You need to get to class, 200 meters away, and you can only walk in the hallways at about 1.5 m/s. (if you run any faster, you’l

l be caught for running). How much time will it take to get to your class?
Physics
2 answers:
Pani-rosa [81]4 years ago
6 0
200/1.5 = 133.33 seconds. 

= approximately 2 mins and 13 secs. 
MissTica4 years ago
4 0
Time = distance / velocity

= 200/1.5

= 133.3333 s.

Thus, the time will be around 133 seconds or 2 minutes 13 seconds.
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Explanation:

It is given that,

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(a) Let F_e is the force on the electron due to the magnetic field. The magnetic force acting on it is given by :

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F_e=1.6\times 10^{-19}\times [(2\times 10^6i+3\times 10^6j)\times (0.030i-0.15j)]

F_e=-1.6\times 10^{-19}\times (-390000)(k)

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(b) The charge of electron, q_p=1.6\times 10^{-19}\ C

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An object is held at rest and allowed to drop How far does the object fall in 3.3 seconds?
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Which discovery did Galileo make to support the theory that the planets, including Earth, orbit the Sun?
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Sarah's acceleration is -0.49 m/s^2

Explanation:

The force of kinetic friction acting on Sarah has a magnitude which is given by:

F_f = \mu mg

where

\mu is the coefficient of kinetic friction

m is Sarah's mass

g is the acceleration of gravity

Moreover, according to Newton's second law of motion, we know that the net force on Sarah is equal to its mass times its acceleration:

F=ma

where a is the acceleration

Since the force of friction is the only force acting on Sarah, we can say that the net force is equal to the force of friction, therefore:

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a=-\mu g

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\mu = 0.05 (coefficient of friction)

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we find:

a=-(0.05)(9.81)=-0.49 m/s^2

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