I think 8.4
i learned that magnitude 8.4 earthquake had hit japan before
Answer:
When the Moon passes between Sun and Earth, the lunar shadow is seen as a solar eclipse on Earth. When Earth passes directly between Sun and Moon, its shadow creates a lunar eclipse. Lunar eclipses can only happen when the Moon is opposite the Sun in the sky, a monthly occurrence we know as a full Moon.
Answer:
a) a = 0
b) W = 29.72 N
Explanation:
a)The acceleration of an object is defined as the change of its speed with respect to a time interval, Because the briefcase remains at rest, its acceleration (a) is zero.
a=0
b) Calculation of the weight of the briefcase
The formula to calculate the weight is the following:
W= m*g Formula (1)
Where:
W : is the weight in Newtons (N)
m : is the mass in kilograms (kg)
g : is the acceleration due to gravity in meters over second square (m/s²)
Data
m=3.03 kg : mass of the briefcase
m=9.81 m/s² : acceleration due to gravity
We replace data in the formula (1)
W= m*g = 3.03 kg * 9.81 m/s²
W= 29.72 N
1. T<span>he fields of science and mathematics are so interdependent because:
</span><span>Scientists need to be able to take careful measurements.
</span><span>Scientists need to be able to make precise measurements.
2. </span>T<span>he following questions can use science as a method of inquiry:
</span><span>How can we protect crops from drought?
</span><span>Did dinosaurs exist?
P.S. </span>No probs man, I will answer the same question over and over again, as long as you are willing to give away so many points. (Would be a real shame if I'm wrong, tho, but let's hope for the best :))