Hi there,
Unlike velocity,speed is scalar,which means it is described by MAGNITUDE only.
Don't they have to pay insurance company if something happens to there car.
Force = mass * acceleration
F = ma
We can start by substitution.
F = 2000 Newtons
Mass = 1000 kg
Divide to figure out the acceleration
2000/1000 = 2 m/s2
the answer would be that the acceleration measures 2 m/s2
Answer:

Explanation:
As we know that work function is defined as the minimum energy of photons required to produce the photo electric effect
so here we have

now we know that


= wavelength of photons
now from above formula



Answer:
Answered
Explanation:
W = ∫ F dx = ∫ P dV = ∫ PA dx = PA* H = P∆V
∆V = W/P
= 1 kJ / 1200 kPa = 0.0 833 m3
Both cases the height is H = ∆V/A
IN case 1 ( sectional area = 0.01 m^2)

in case 2 (sectional area = 0.03 m^2)
