Answer:
The time taken for the sound wave to make the round trip is 0.16 s.
Explanation:
Given;
distance traveled by the sound wave, d = 120 m
bulk modulus of sea water, B = 2.3 x 10⁹ N/m²
density of sea water, ρ = 1022 kg
The speed of the wave is given by;
Speed is given by;
total distance of the round trip = 2 x 120m = 240 m
Time taken for the sound wave to make the round trip is given by;
Therefore, the time taken for the sound wave to make the round trip is 0.16 s.
Let's call
the mass of the star and
the mass of the planet, which should cancel. The gravitational force should equal the centripetal force:
We compute
This is Keppler's Law. We convert to MKS as we plug in and get
kg
which is about two and a half solar masses if I haven't made any errors.
Answer:
F = 479.21 N
Explanation:
given,
initial velocity = 0 m/s
final velocity = 16.7 m/s
time taken = 20.7 s
combined mass of the boat and trailer = 594 kg
tension in the hitch = ?
using equation of motion
v = u + a t
16.7 = 0 + a × 20.7
a = 0.807 m/s²
Force = mass × acceleration
F = 594 × 0.807
F = 479.21 N
Hence, the tension in the hitch that connects the trailer to the car is F = 479.21 N
Answer:
In the process some of the mass of the hydrogen is converted into energy. ... The sun and stars do this by gravity.
Explanation:
The Light wavelenght in joules would be 394.807
The formula is 10^-9 for nanometers and 10^-6 for micrometers.
The varible h is a constant equal yo 6.63 * 10-34 J
Hope this helps.