Ok when two differing temperatures are mixed together with no special circumstances indicated they will form a equilibrium temperature between the two differing temperature by effectively "sharing" their energy. So the answer should be B.23*C
Power = (voltage) times (current)
Divide each side
by voltage: Power / voltage = current .
If you know the power and the voltage, then you can divide
the power by the voltage, and the quotient is the current.
Answer:vs=5mph , vk=7+vs=12mph
Explanation: kinematics with constant speed
(shaun) xs = 0 + vs*t
(keegan) xk= 68 - vk*t
they meet after t= 4hours (xs=xk):
vs*t= 68-vk*t
but we know that vk=7+vs ( keegan faster) replacing:
vs*4= 68-(7+vs)*4
solving vs=5mph , vk=7+vs=12mph
Answer:
Explanation:
It is given that,
Frequency for submarine communications, f = 76 Hz
We need to find the wavelength of those extremely low-frequency waves. the relation between the wavelength and the frequency is given by :
or
So, the wavelength of those extremely low-frequency waves is 4000 km. Hence, this is the required solution.
Answer:
Explanation:
= Density of water = 
= Change in volume = 
= Time elapsed = 1 minute = 60 seconds
Mass flow rate is given by
The mass flow rate is .
