P= mv
where p is momentum
m is mass
v is velocity
so it's given p= 100kgm/sec
v= 4m/s
so putting in the formula
100= m × 4
m = 25kg
Inital velocity of the jet (v) = 24 m/s
final velocity (u) = 0
time taken (t) = 1.6 s
acceleration(a) = (final velocity- inital velocity)/ time
= (0 - 24) /1.6
= -24/ 1.6
= -15
so,
the acceleration was - 15 m/s^2
<span>(60km/hr) * (1000m/km)
km cancels with km
=60,000m/hr)
(60,000m/hr) * (1hr/3600s) = 16.67m/s</span>
Entropy, in thermodynamics, is a measure of the degree of randomness or disorderliness of a system. It has units of energy per temperature. So, we calculate it by dividing the total heat in the system by the temperature. We do as follows:
Entropy = 437 J / 321 K = 1.36 J/K
The equation which shows the relationship between frequency, wavelength and velocity of particle is given as,
Here, f is the frequency, v is the velocity and
is the wavelength. The frequenc