30 volts
E= IxR
See ohms law calculator image below
E= IxR
See ohms law calculator image below
The study of the stars and planets
1 answer:
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Given:
Speed = 2.70 m
Time, t = 2.10 seconds
Let's solve for the following:
• (a) The horizontal component of the velocity.
To find the horizontal component, apply the formula:
Where:
Vo is the initial speed = 2.70 m
θ = 0 degrees
Hence, we have:
The horizontal component of the velocity just before it lands is 2.70 m/s.
• (b) The vertical component of the velocity.
To find the vertical component, apply the formula:
Where:
g is the acceleration due to gravity = 9.8 m/s²
t is the time = 2.10 s
Hence, we have:
The vertical component of the velocity just before it lands is -20.58 m/s.
(c) Here, the initial speed is equal to the constant horizontal speed.
Therefore, in part (a) the horizontal component will increase in the x-direction if the speed of the crow is increased.
The initial vertical velocity is 0 m/s in both cases.
Therefore, in part (b) the vertical component will remain constant.
ANSWER:
(a) 2.70 m/s
(b) -20.58
(c) In part (a) the horizontal component will increase, while in part (b) the vertical component will remain constant.