Some properties of physical change are, color, odor, melting point, texture, density, polarity and boiling point.
<span>When two electrical charges, of opposite sign and equal
magnitude, are separated by a distance, a dipole is established. The size of a
dipole is measured by its dipole moment</span><span> . Dip</span>ole moment is measured in Debye units, which is equal to the
distance between the charges multiplied by the charge
<span>Dipolemoment 'D' = e x d
where e= charge and d= distance by which charge is separated. </span><span>
In this case e = charge on electron = 1.6 x10^-19 C</span>
D = 1.6 x10^-19 C (
1x10^-10 m) =1.6x10^-29 Cm
Yes. Even greater. Air resistance or drag becomes harder the faster an object goes. This is why when cars reach their max speed they don't accelerate as fast, because they are pushing harder against the wind. If I take a tennis ball and shoot it down a bottomless pit, a 400 kph, the drag will slow the ball down till it reaches terminal velocity.
Explanation:
velocity = wavelength × frequency
3×10⁸ = 400/10⁹ × frequency
frequency = 3 × 10¹⁵ /400
frequency = 75×10¹¹Hz
Answer:
Final velocity is 181.61 m/s at angle 40.44° below horizontal.
Explanation:
Initial horizontal velocity = 170 cos 35.6 = 138.23 m/s
Final horizontal velocity = 138.23 m/s
Considering vertical motion of projectile:
Initial vertical velocity, u = 170 sin 35.6 = 98.96 m/s
Acceleration, a = -9.81 m/s²
Displacement, s = -208 m
We have v² = u² + 2as
Substituting
v² = 98.96² + 2 x -9.81 x -208
v = 117.79 m/s
Final velocity,
Final velocity is 181.61 m/s at angle 40.44° below horizontal.
