Answer:
Explanation:
It takes 3.1 s for the boat to travel from its highest point to its lowest, so the period of oscillation
T = 2 x 3.1 = 6.2 s
frequency of wave n = 1 / T = .1613 per sec
Amplitude of oscillation = .55/2 = .275 mm
The fisherman sees that the wave crests are spaced 4.2 mm apart. so wavelength of wave λ = 4.2 mm .
A ) velocity of wave v = n λ
.1613 x 4.2 = .677 mm /s
B ) Amplitude of wave = .275 mm
C ) The vertical distance determines only the amplitude which does not affect the velocity , so velocity will remain unchanged .
D ) Amplitude of wave depends only on the vertical displacement .
The amplitude will become .5 / 2 = .25 mm .
Answer:
19.2 N
Explanation:
After any transients dissipate, all forces must balance. The red cart never moves.
Exoplanets are probably
<span>made of hydrogen and helium </span>gas<span>. ... </span>
The net horizontal force acting on the cart is 169.85 N.
The change in the carts momentum is 5,000 Ns.
The net horizontal force on Zanele is same as the net horizontal force on the cart.
If angle between the 500N force and the horizontal is decreased, the final velocity of the cart increases.
The given parameters:
- Mass of zanele, m1 = 40 kg
- Mass of the cart, m2 = 20 kg
- Applied force, F = 500 N, at angle 20 degrees
- Frictional force on the cart, Ff = 300 N
- Time, t = 10 s
<h3>Net horizontal force on the cart;</h3>
- The net horizontal force acting on the cart is calculated as follows;

<h3>Change in momentum;</h3>
- The change in the carts momentum at the given time of applied force is calculated as follows;

The net horizontal force on Zanele is same as the net horizontal force on the cart.
<h3>The final velocity of the cart;</h3>
- When the angle decreases the cart's final velocity would be affected as follows;

Thus, if angle between the 500N force and the horizontal is decreased, the final velocity of the cart increases.
Learn more about net horizontal force here: brainly.com/question/21684583
5.4 x 1014Hz
wavelength x frequency = the speed of light