Answer:
through out the projectile motion the horizontal vilocity remains constant due the absence of the air resistance so the ans is 47.3
Explanation:
Answer:
7.5 units
13 units
Explanation:
= Angle between the vectors =
Scalar product is given by
The scalar product of the vectors is 7.5 units.
Vector product is given by
The vector product of the vectors is 13 units.
<span>The period of a wave can be calculate according T = 1 / f
where T is wave period and f is frequency,
then in our problem we have a wave of 100 Hz so:
T = 1 / 100 = 0.01 seconds
The wave have a period of 0.01 seconds.
Optinaly we could also calculate the speed: V=wavelenght/period= 2/0.01= 200 m/s</span>
Gravity and falling objects
Answer:
11 V
Explanation:
According to the formula, V = IR
V = 2.75×4 = 11