Answer:
t=7.14s
v=-69.972 m/s
Explanation:
Position function
Velocity is the derivative of position function
The time the object hit the ground can be find by the given function know that the position is going to be 0m
Check:
So the velocity can be find using the time discovery before and using the same function but with the derivate
The velocity is negative because the object is moving downward
Answer:
55 miles / hour = 1.475232 kilometers / minute
Answer:
2.40 x 10⁻¹³ C
Explanation:
= number of electrons = 6.25 x 10⁶
= charge on electron = - 1.6 x 10⁻¹⁹ C
= number of protons = 7.75 x 10⁶
= charge on proton = 1.6 x 10⁻¹⁹ C
Net charge is given as
Q = +
Q = (- 1.6 x 10⁻¹⁹) (6.25 x 10⁶) + (1.6 x 10⁻¹⁹) (7.75 x 10⁶)
Q = 2.40 x 10⁻¹³ C
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Explanation:
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