Answer:
3.8 x 10^10 m/s^2
Explanation:
Charge, q = 2 e = 2 x 1.6 x 10^-19 C = 3.2 x 10^-19 C
Electric field strength, E = 790 N/C
mass of helium nucleus, m = 6.645 x 10^-27 Kg
the force due to electric filed on a charge particle is given by
F = q x E
Where, q be the charge on the charged particle and E be the strength of electric field.
By substituting the values
F = 3.2 x 10^-19 x 790
F = 2528 x 10^-19 N
According to the Newton's second law
F = m x a
Where, me be the mass and a be the acceleration
By substituting the values
a = 3.8 x 10^10 m/s^2
1) The coefficient of friction of the surface
2) The weight of that objects
the speed of sound in water is slower than the speed of air
Answer:
70,100 m/s
Explanation:
Given:
v₀ = 205 m/s
a = 8.03 m/s²
Δx = 1750 m
Find: v
v² = v₀² + 2aΔx
v² = (205 m/s)² + 2 (8.03 m/s²) (1750 m)
v = 70,130 m/s
Rounding to three significant figures, the final velocity is 70,100 m/s.
The experimental method is usually taken to be the most scientific of all methods, the 'method of choice'. The main problem with all the non-experimental methods is lack of control over the situation. The experiment method is a means of trying to overcome this problem. The experiment is sometimes described as the cornerstone of psychology: This is partly due to the central role experiments play in many of the physical sciences and also to psychology's historical view of itself s a science. A considerable amount of psychological research uses the experimental method. <span />
