The same number of protons. brainliest?(:
An example of an aerobic activity would be A, Cross-country skiing
Answer:
Explanation:
The electron has a negative charge. Proton is positive and neutron is neutral.
Answer:
v = 12.12 m/s
Explanation:
Given that,
The mass of the cart, m = 75 kg
The roller coaster begins 15 m above the ground.
We need to find the velocity of the cart halfway to the ground. Let the velocity be v. Using the conservation of energy at this position, h = 15/2 = 7.5 m
So, the velocity of the cart is 12.12 m/s.