IF YOU WANT BRAINLIEST THEN ANSWER THIS:D pleas pleas pleas don't just do this for points
A gas water heater is 75% efficient. The energy output used to heat the water is 4.6 kWh.

What is the energy input, rounded to the nearest tenth?

A) 3.5 kWh
B) 5.4 kWh
C) 6.1 kWh
D) 16.3 kWh

Could someone me find the answer to this problem.

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.

A51 kg woman skis down a hill and her kinetic energy is 9.96e4 j. what is her speed?