Answer:
7908.92307 W
683330953.248 J
Explanation:
k = Heat conduction coefficient = 0.8 W/(m·°C)
A = Area = 
l = Thickness = 0.65 cm
= 24°C
= 0°C
Rate of heat transfer is given by
The rate of heat transfer is 7908.92307 W
Amount of energy is given by
The energy transferred through the window in one day is 683330953.248 J
Answer:
oxygen, good atmosphere, water, food and good weather
Explanation:
oxygen:without it we won't live even the animals living under water needs oxygen
good atmosphere:it shields us from the sun radiation
water:for drinking
food:every living thing needs food
good weather:we won't mind freezing or dying of heat
Objects repel and attract because of a thing called electrostatic attraction. When objects have the same charge (positive or negative), then they will repel, and if they have opposite charges then they will attract
Answer:
B. a large change in velocity over a short time interval
Explanation:
A "chjange in velocity" is acceleration. Acceleration is in units of meters/sec/sec or meter/sec^2.
)meters/sec) is velocity. Sec is the time.
Velocity/Time: A large change on the top (Velocity), divided by a small change in the bottom (sec) means the largest value for accceleration.
Answer:
M v^2 / R = centripetal force
For Red: M v^2 / R = 5 * 9^2 / 1.5 = 270
For Blue M v^2 / R = 270 = 25 * 1.8^2 / Rb
So Rb = 25 * 1.8^2 / 270 = .3 m
