Answer:E = 9.54×10-²Joules
Explanation:
Energy of photon E = hc/¶
Where ¶ is the wavelength
Given h = 6.63×10-³⁴ c= H = 6.02×10²³ ¶ = 418nm = 418 ×10^-9
Substituting the values in the formula
E = 6.63×10-³⁴×6.02×10²³/418 ×10^-9
E = 9.54×10-²Joules
Answer:389.4 joules
Explanation:
kinetic energy=ke
Mass=m=3.2kg
Velocity=v=15.6 m/s
Ke=(m x v x v)/2
ke=(3.2 x 15.6 x 15.6)/2
Ke=778.752/2
Ke=389.4
Kinetic energy is 389.4 joules
Wood, plastic, rubber and air are good insulators because they don’t have free electrons.
Answer:
Satellites may move north to south, or south to north, or west to east, but never from east to west. When satellites are launched, they always head eastward to take advantage of the Earth's rotation, going more than 1,000 miles per hour near the equator. This saves a lot of fuel.
