Answer: 248 Newton
Explanation:
force = rate of change of momentum
change of velocity
= 4 + 4 = 8 m/s
rate of change of momentum = mass per second x change of velocity
= 31 kg/s x 8 m/s
= 248 kg m/s^2 or Newtons
There are more than two.
The two that you're thinking of are the Fahrenheit and Celsius scales.
But sometime when you feel like it and have a few minutes to spare,
you might like to go online and read about these other scales:
-- Kelvin
-- Rankine
-- Reaumur
-- Newton
-- Delisle
-- Rømer
It involves motion and not an actual property of how the object is in terms of consistency
Answer:
R = 33.1 m and y = 8.27 m
Explanation:
This exercise is projectile launch, let's use the scope equation to find the displacement on the X axis
R = vo2 sin 2θ / g
R = 18 2 sin (2 45) /9.8
R = 33.1 m
First let's look for the velocity components
vox = vo cos θ
voy = vo sin θ
vox = 18 cos 45
vox = 12.73 m / s
voy = 18 sin 45
voy = 12.73 m / s
To find the maximum vertical displacement, where the vertical velocity must be zero, we can use the equation
² = ² - 2 g y
0 = ² - 2 g y
y =² / 2g
y = 12.73² / (2 9.8)
y = 8.27 m
Initial velocity = 5mph
final velocity = 7mph