Answer:
acceleration m/s²
Explanation:
The units on the left side of the equation are units of length. The units on the right side of the equation must be units of length also. Acceleration times time squared gives length.
27.9 idkkkk look it up on photomath
Very specific alignment of the Sun, Earth, and Moon. If the Moon is lined up precisely with the Sun from the Earth's point of view, the Moon will block Sunlight from reaching the Earth, causing a solar eclipse.
To do this, all you need to do is get the momentum of each and get the sum. The formula of momentum is:
p=mv
where:
p = momentum
m = mass
v = velocity
Bicycle 1 and 2 have the same mass of 15 kg
Bicycle 1 v = 1 m/s
Bicycle 2 v = 3 m/s but because it was coming from the opposite direction then we get a negative velocity. The negative just indicates the direction so it will be -3m/s
m1v1+m2v2
=(15kg)(1m/s) + (15kg)(-3m/s)
= 15kg.m/s + (-45kg.m/s)
=-30kg.m/s
Their combined momentum before the crash is 30kg.m/s. We take out the negative sign because the question is asking only for the magnitude and not the direction and remember the negative sign indicates the direction.
