To write it in the form ai + bj, we need to find a and b
which are:
a = x component
b = y component
length of x = 9 – 2 = 7
length of y = 25 – 1 = 24
tan θ = 24 / 7
θ = 73.74°
a = (50 m/s) cos 73.74
a = 14 m/s
b = (50 m/s) sin 73.74
b = 48 m/s
Hence,
14i + 48j
Earth around the sun and the moon around the earth
Answer:
102597.6 Pa
Explanation:
mass, m = 1.25 g
Force, F = m x g = 1.25 x 9.8 x 10^-3 = 0.01225 N
radius, r = 0.195 mm = 0.195 x 10^-3 m
Area, A = πr² = 3.14 x 0.195 x 0.195 x 10^-6 m^2
A = 1.19 x 10^-7 m^2
Pressure is defined as the thrust acting per unit area.
P = Force / Area
P = 0.01225 N / (1.10 x 10^-7)
P = 102597.6 Pa
Thus, the pressure exerted is 102597.6 Pa.
