Answer:
65
Step-by-step explanation:
1/2 which is half of total is green
1/4 is bad and the remaining apples are red
1/2 of 260 = 130 green apples
1/4 of 260 = 65 bad apples
the remaining is 1/4 which is equal to 65 are red apples
Answer:
v = 8.49 m/s rounded off to 3 significant figures
Step-by-step explanation
Using Energy Conservation
U = Tk + Vp (Sum of kinetic Tk Energy and gravitational potential Vp Energy)
- At height = 3.67 m, the hammer was still or the velocity was negligible; hence, vi = 0 m/s.
- Ui = 0 + mgh
- At ground all potential energy is converted to kinetic; hence, Uf =
mv². - Since total energy of the system remains constant we equate Ui to Uf.
- Ui = Uf
- mgh =
mv² - After cancelling out masses and making v the subject of the formula we get:
v =
=
= 8.49 m/s rounded off to 3 significant figures
Answer:
1 no. answer is -21
Step-by-step explanation:
According to BODMAS
12 + 8 / 2 * 3 - (42 + 3)
= 12 + 8 / 2 * 3 - 45
= 12 + 4 * 3 - 45
= 12 + 12 - 45
= 24 - 45
= -21
Ce clasă ești sa văd daca te pot ajuta
Answer:
6 hours
Step-by-step explanation: