Answer:
the final velocity of the object is 53.04 m/s.
Explanation:
Given;
initial velocity of the projectile, u = 50 m/s
displacement of the object, d = 16 m
let the final velocity of the object = v
Apply the following kinematic equation to determine the final velocity of the projectile.
v² = u² + 2gd
v² = 50² + (2 x 9.8 x 16)
v² = 2813.6
v = √2813.6
v = 53.04 m/s
Therefore, the final velocity of the object is 53.04 m/s.
Weight is equivalent to the product of the mass of an object and the strength of the gravitational field.
Using:
F = ma
a = 8.2 / 5
a = 1.64 N/kg
The gravitational field strength is equivalent to 1.64 N/kg.
Answer:
Diffraction is a physics concept. Diffraction occurs when waves bend around small obstacles, or when waves spread out after they pass through small openings. Diffraction occurs with all waves, including sound waves, water waves, and electromagnetic waves such as light that the eye can see.
Answer
a) Electron is moving toward right and brought to rest it means that force should be in opposite direction of motion electron.
We know F = qE here q = -e so, Force will be F = - eE.
Force on electron will be acting in opposite direction so, the electric field direction will be towards Right.
b) we know,
Force on electron = Electric force
m a = eE
using equation of motion
v² = u² + 2 a s
0 = (5.5 x 10⁵)² - 2 x a x 0.05
e = 1.6 x 10⁻¹⁹ C
mass of electron, m = 9.1.09 x 10⁻³¹ Kg
now,
E = 17.22 N/C
hence, strength of electric field is equal to E = 17.22 N/C