Answer:
The energy dissipated as the puck slides over the rough patch is 1.355 J
Explanation:
Given;
mass of the hockey puck, m = 0.159 kg
initial speed of the puck, u = 4.75 m/s
final speed of the puck, v = 2.35 m/s
The energy dissipated as the puck slides over the rough patch is given by;
ΔE = ¹/₂m(v² - u²)
ΔE = ¹/₂ x 0.159 (2.35² - 4.75²)
ΔE = -1.355 J
the lost energy is 1.355 J
Therefore, the energy dissipated as the puck slides over the rough patch is 1.355 J
Answer:
A) Both soap products were more effective than the hand sanitizer
Explanation:
Both soap products together are more than the hand sanitizer
Answer:
Explanation:
2. The image formed in a diverging lens is always virtual.
4. Converging lenses are shaped such that a beam of parallel light rays passing through the lens will be brought together in one single point.
I think sun because:
-Sun is the strongest force. It has the largest gravitational pull.
-the moon and Earth both depend on the Sun for different things.
-The sun is not greatly affected by the Moo or the Earth.
:)
