Answer:
1. 638.144j
2. 319.072 j
3. 957.216 j
Explanation:
M = 11.8 kg cylinder
V = speed of center of gravity = 10.4m/s
A.
Translational kinetic energy
= 1/2mv²
1/2x 11.8kg x 10.4²
= 11.8x108.16/2
= 1276.288/2
= 638.144 J
This is the translational energy
B.
Rotational energy
1/2Iw²
I = mv²/2
w = v/r
When we substitute
1/2[mv²/2][v/r]²
= 1/4mv²
= 1/4 x 11.8 x 10.4²
= 1276.288/4
= 319.072
This is the rotational energy
C
Total kinetic energy.
We add the values of A and B above to get this.
638.144 J + 319.072 J
= 957.216J
what is the average speed of a student 100cm/s Bernard 150 cm/s Chloe 50 cm/s Dev 75 cm/s Eduardo 125cm/s
Answer:
100cm/s
Explanation:
Given the speed of the following students;
Bernard 150 cm/s
Chloe 50 cm/s
Dev 75 cm/s
Eduardo 125cm/s
Their average speed of a student will be the mean of their individual speed as shown:
Average speed = 150+50+75+125/4
Average speed = 400/4
Average speed = 100
Hence the average speed of a student is 100cm/s
Does heat and temperature depend on the other or are they totally separate ideas? Explain.
Answer:
What heat means in thermodynamics, and how we can calculate heat using the heat ... Scientists define heat as thermal energy transferred between two systems
Explanation:
thermal energy