Answer:
0.594 m/s
Explanation:
First, find the time it takes to land.
Given, in the y direction:
Δy = 2.225 m
v₀ = 0 m/s
a = 9.8 m/s²
Find: t
Δy = v₀ t + ½ at²
(2.225 m) = (0 m/s) t + ½ (9.8 m/s²) t²
t = 0.674 s
Next, find the horizontal velocity.
Given, in the x direction:
Δx = 0.400 m
a = 0 m/s²
t = 0.674 s
Find: v₀
Δx = v₀ t + ½ at²
(0.400 m) = v₀ (0.674 s) + ½ (0 m/s²) (0.674 s)²
v₀ = 0.594 m/s
Pressure and volume of a gas are inversely related. As one goes up, the other goes down, and vice-versa.
Multiply 5 newton by each height. 1st is 5 joules, 2nd is 7.5, while 3rd is 10 joules.
It is (A) for the first one and (B) for the second one.
Answer:
both magnesium and strontium have 2 valence electrons
Explanation:
potassium has 8 valence electrons, and nitrogen has 5.
