Answer:
F = 1.06N
Explanation:
In order to calculate the force that produces the given pressure you take into account the following formula:
(1)
P: pressure = 6.0kPa = 6.0*10³ Pa
F: force = ?
A: cross-sectional area of the tube = π r^2
r: radius of the tube = 1.5cm/2 = 0.75cm = 0.75*10^-2 m
You solve the equation (1) for F, and replace the values for the area A and the pressure P:
The force tha produces a pressure of 6.0kPa in a tube with a diameters of 1.5cm is 1.06N
Explanation:
a = (Vf-Vi)/t
= (10m/s - 15m/s)/2s
a = -5 / 2 m/s^2
• so the dog diaccelerate at the rate of 5/2 m/s^2
hope it helps
Answer:
The answer is B
Explanation:
The line spectrum shows distinct light different energies and wavelengths
Answer:
The acceleration is 2 m/s2.
Explanation:
We calculate the acceleration (a), with the data of mass (m) and force (F), through the formula:
F = m x a ---> a= F/m
a = 40 N/20 kg <em> 1N= 1 kg x m/s2</em>
a= 40 kgx m/s2/ 20 kg
<em>a= 2 m/s2</em>
