This is simple as power in watts is equal to joules per second so we can do 1500 joules divided by 30 seconds which equals 50 watts
Answer:
July
Explanation:
In july you would expect least hurricane
Answer:
Velocity: +ve, Acceleration: -ve
Explanation:
Here I've considered downward direction as positive direction.
Answer:
answer is option d
Explanation:
just took unit test edg 2021
Answer:
A = 2.1 × 10^(-4) m²
Explanation:
We are given;
Temperature; T = 2450 K
Emissivity; ε = 0.35
Bulb rating; H = 150 W
To calculate the surface area, we will use the formula;
H = AεσT⁴
Where σ is stephan boltzman constant with a value of 5.66 × 10^(−8) W/m²⋅K⁴
Making A the subject of the formula, we have;
A = H/εσT⁴
Plugging in the relevant values gives;
A = 150/(0.35 × 5.66 × 10^(−8) × 2450⁴)
A = 2.1 × 10^(-4) m²