Answer:
Using clean, renewable, and readily available solar energy as fuel.
Preserving natural resources by not requiring the use of wood or other biomass fuels to cook.
Not producing dangerous emissions which pollute local environments and contribute to climate change.
Explanation:
Answer: 0.016 h
Explanation:
It is given that, biker has an average speed = 18 km/h
Total distance traveled = 0.30 km
Therefore, time taken by biker to travel this distance:
Thus, the biker takes 0.016 hours to travel the segment of 0.30 km at an average speed of 18 km/h.
Answer:
by using a magnetic field
Answer:
reaction force of the gravel pushing up against the car
Explanation:
In part A, we are told that gravity (i.e gravitional force or weight) is acting downward to hold the car downward on the gravel.
Because the car is stationary (i.e parked) and not sinking into the gravel, there must be an equal and opposite force acting upward in order to balance out the gravitational force.
This is known as the the reaction force of the gravel pushing up against the car.
Answer:
Explanation:
This is a problem based on interference pf light waves.
wavelength of light λ = 553 nm
slit separation d = .134 x 10⁻³ m
screen distance D = 4.5 m
for fourth order bright fringe, path- length difference = 4 x λ
= 4 x 553
= 2212 nm .
= 2.212 μm
