Work=force*distance.
Force= (9.8x45) because that's the force of her weight.
Distance is 3 m. (given)
work=(9.6x45)(3)=1323 joules
Treatment water from the plant would affects the communities present in the downstream of the river.
Answer: Option (a)
<u>Explanation:</u>
Wastewater treatment plant is a process used to treat the water that flows from the rivers, streams, and lakes.This plant removes the dust, sand, sediments present in the river water.
When this treated water is released into the downriver stream, it affects the health of aquatic organisms present in that stream.Use of chemicals in treating the wastewater may cause genetic problems to the communities present in that region.
It also causes air pollution and more energy is needed for the treatment process and thus affects the ecosystem.
Answer:
As all electromagnetic radiation, microwaves travel at the speed of light.
AGREE
You take 75 and divide is by 1.5 and you’ll get c 50 km/hr
Answer:
No
Explanation:
The supplied information about the object and train is incomplete. Acceleration is the rate at which the velocity of a body changes with time. Here the velocity and time is not given