Answer:
Explanation:
Let the smaller sphere have a radius of R
Electric field on its surface( just outside the sphere) (E₀) = k Q / R²
Electric field on the surface of larger sphere
(E) = k Q / (3R)²
= k Q / 9R²
= E₀ / 9
So option e is correct.
Answer:
a) 256 ft
b) 32 ft/s
c) -32 ft/s
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration due to gravity = 32 ft/s²
Maximum height = 256 ft
When s = 240 ft
Speed of the ball at 240 ft is 32 ft/s while going up
Now this will be the velocity of the ball when it reaches 240 ft, which will be considered as the initial velocity
Now, initial velocity will be considered as zero
Speed of the ball at 240 ft is -32 ft/s while going down
Answer:
Part 1)
- 224.6 J
Part 2)
- 339.4 J
Explanation:
= Constant pressure acting on gas = 0.643 atm = (0.643) (1.013 x 10⁵) Pa = 0.651 x 10⁵ Pa
= initial volume = 5.46 L = 0.00546 m³
= final volume = 2.01 L = 0.00201 m³
Work done on the gas is given as
Part 2)
= Change in the internal energy
= Heat energy escaped = - 564 J
Using First law of thermodynamics
Earth is more suitable because it has an atmosphere that is suitable for life, Earth has fresh water, and it is the safest distance from the sun. Plants increase the viability of life by producing Oxygen for animals and using carbon dioxide for photosynthesis. Volcanoes are present because of the pressure built up in the core of these planets. The inner planets are small in size compared to the outer planets. The temperature is much hotter and they are solid structures. Beyond Mars, these planets are gases and are much larger. There are many pictures and telescopes that explore the universe and show evidence of planets outside of the solar system.
A)
1 year = 365 days x 24 hours per day x 60 minutes per hour x 60 seconds per minute
Seconds in one year = 31536000 seconds
Distance covered = 2.99 x 10⁸ x 31536000
= 9.43 x 10¹⁵ m
B)
9.43 x 10¹⁵ / 1.5 x 10⁸
= 6.29 x 10⁷ AU
C) 2.99 x 10⁸ m/s x 60 s/min x 60 min/hr x 1AU/1.5 x 10⁸ m
= 7176 AU/hr