It’s atoms thank me later (give me brailiest)
Answer:
(D) 3
Explanation:
The angular momentum is given by:

Thus, the magnitude of the angular momenta of both solar systems are given by:

where we have taken that both systems has the same radius.
By taking into account that T1=3T2, we have

but L1=L2=L:

Hence, the answer is (D) 3
HOPE THIS HELPS!!
Complete Question:
An automobile with a mass of 1180 kg is traveling at a speed v =2.51 m/s. What is its kinetic energy in SI units? What speed (m/s) must an 82.7-kg person move to have the same kinetic energy? At what speed (m/s) must is 12.1-g bullet move to have the same kinetic energy? What would be the speed (m/s) of the automobile if its kinetic energy were doubled?
Answer:
a) 3717.1 J b) 9.48 m/s c) 783.8 m/s d) 3.55 m/s
Explanation:
a)
- By definition, the kinetic energy of a mass m with a speed v, is as follows:

- if m= 1180 Kg, and v= 2.51 m/s, the kinetic energy can be calculated as follows:

b)
- If the kinetic energy must be the same, and m= 82,7 Kg, we can write the following expression:

- We can solve the above equation as follows:

c)
- If K remains the same, and m = 12.1 g = 0.0121 kg (in SI units). we can solve for v as follows:

d)
- Now, if the kinetic energy were doubled, we would have the following equation:

- We can solve for the new speed v as follows:

Answer:
h ’= 3.75 inch
Explanation:
For this exercise we use the definition of magnification which is the height of the image over the height of the object
m = h ’/ h
h’= m h
Let's calculate
h ’= 5 3/4
h ’= 3.75 inch
Answer:
i think the answer it C let me know if i'm wrong
Explanation: