The image shows devices that convert wind energy into electrical energy. What is one advantage of using this type of device in p
lace of buming fossil
fuels?
A. It emits more greenhouse gases.
B. It produces more hazardous waste.
C. It uses a renewable resource.
D. It causes harm to birds and bats.
fuels?
A. It emits more greenhouse gases.
B. It produces more hazardous waste.
C. It uses a renewable resource.
D. It causes harm to birds and bats.
1 answer:
You might be interested in
Answer:
Explanation:
This is a projectile motion problem. We will first separate the motion into x- and y-components, apply the equations of kinematics separately, then we will combine them to find the initial velocity.
The initial velocity is in the x-direction, and there is no acceleration in the x-direction.
On the other hand, there no initial velocity in the y-component, so the arrow is basically in free-fall.
Applying the equations of kinematics in the x-direction gives
For the y-direction gives
Combining both equation yields the y_component of the final velocity
Since we know the angle between the x- and y-components of the final velocity, which is 180° - 2.8° = 177.2°, we can calculate the initial velocity.