Answer:
1.
d
. A stream of particles
2. D. Radiowave
3. Microwaves
Answer:no it is staying the same speed
Explanation:
Answer:
Explanation:
Given that,
Mass of sledge hammer;
Mh =2.26 kg
Hammer speed;
Vh = 64.4 m/s
The expression fot the kinetic energy of the hammer is,
K.E(hammer) = ½Mh•Vh²
K.E(hammer) = ½ × 2.26 × 64.4²
K.E ( hammer) = 4686.52 J
If one forth of the kinetic energy is converted into internal energy, then
ΔU = ¼ × K.E(hammer)
∆U = ¼ × 4686.52
∆U = 1171.63 J
Thus, the increase in total internal energy will be 1171.63 J.
Answer:
It may be combine?
Do you have multiple choice i can see?
Explanation:
Answer:A brick is released with no initial speed from the roof of a building and strikes the ground in 2.50 s, encountering no ..