Self-registering thermometers
are used for temperature or depth profile. It registers the maximum and minimum
temperature of the substance occurring in the interval of time between two
consecutive settings of the instrument.
Answer:
equivalent power = 6.60 ×
W
Explanation:
given data
coal train length = 1.5 km = 1500 m
contain = 120 cars
holding= 110 tonnes of coal each
train traveling speed = 100 km/h = 27.78 m/s
to find out
equivalent power in watts
solution
we take here energy produce by coal is 27 ×
J/kg
and here total coal = 120 × 110 × 10³ kg
sop here energy produce by total coal is
energy produce by total coal = 27 ×
× 120 × 110 × 10³
and time required to cross that distance is
time =
time =
time = 53.99 sec
so here equivalent power will be
equivalent power =
equivalent power =
equivalent power = 6.60 ×
W
Answer:
C. 14.93 m
Explanation:
The given frequency of the wave, f = 100 Hz
The given equation for the wave speed, <em>v</em>, is presented as follows;
v = f × λ
The speed of sound in water, v = 1,493 m/s
Therefore, we get;
The wavelength, λ = v/f
∴ λ = 1,493 m/s/(100 Hz) = 14.93 m
The wavelength, λ = 14.93 m.