Answer:
It's called the resultant
Downhill skiing is also called alpine skiing. It involves high speed and quick turns down a sloped terrain. The skier gains speed by converting gravitational potential energy into kinetic energy of motion. So the more a skier descends down a hill, the faster he goes.
Answer:
1.47 J/kg
120 m
Explanation:
The maximum height it can jump in a single leap 15 cm, = 0.15 m
to get the kinetic energy per kg of mass, we need to find the takeoff speed. The take off speed can be calculated by using the formula
v =
where h = 0.15
v =
v =
v = 1.715 m/s
energy per kg of mass =
1/2 * (1.715) = 1.47 J/Kg
TJe height a human can jump when compared to the flea is
2 m/2.5 mm * 15 cm =
2/0.0025 *0.15 =
800 * 0.15 = 120 m
Answer:
James Webb has been designed to focus on the infrared part of the spectrum from 0.6 (red light) to 28 microns (infrared). This means it won't be able to see in ultraviolet light like Hubble, but will be able to focus on infrared bright objects like extremely distant galaxies.
Answer:
3.75 J
Explanation:
m = 1.5 kg
a = 0.5 m/ s^2
d = 5 m
w = F × d = (0.5×1.5) × 5 = 3.75 J