Answer:
The heat capacity of a sample is 37.7 J/K.
Explanation:
Given that,
Submerged temperature of tissue sample = 275 K
Mass of liquid nitrogen= 2 kg
Temperature = 70 K
Final temperature = 75 K
We need to calculate the heat
Using formula of heat
Put the value into the formula
We need to calculate the heat capacity of a sample
Using formula of heat capacity
Put the value into the formula
Hence, The heat capacity of a sample is 37.7 J/K.
Answer:
O So you can ask questions about steps you do not understand.
Explanation:
One of the reasons why it is encouraged that the laboratory procedure must be read at the beginning of any type of experiment is familiarize the student with the experimental procedure. Also, questions that can help make the smooth running of the experiment to proceed can be cleared.
- It is to this regard that understanding laboratory procedures is very vital.
- Students must grasp the details of each steps of the experiment before proceeding with their investigation.
- Other critical information needed to set up the experiment can also be brought into the lime light.
Answer:
Explanation:
Given that
Mass of disc,M=3 kg
radius r= 65 cm
Mass of small mass ,m=0.07 kg
Initial speed = 2.2 rev/s
If external torque is zero then angular momentum of system will remain conserve.
Moment of inertia of disc at initial condition
Moment of inertia of disc at final condition
So from conservation of angular momentum
This is final speed of disc after small mass flies off from the disc.
There are two parts to this solution: The down part for the helmet, and the up part for the sound. The down part has to be solved first, before the up part.
-- The helmet falls 78.4 meters. How long does that take ?
In gravity,
Distance = (1/2) (acceleration) (Time²)
78.4 m = (1/2) (9.8 m/s²) (Time²)
Time² = (78.4 m) / (4.9 m/s²)
Time² = 16 sec²
Time = 4 seconds.
-- The crew heard the sound of helmet hitting the ground 4.23 seconds after their buddy dropped it.
We just calculated that it took 4 seconds for it to hit the ground.
So it took 0.23 second for the sound of the clunk to propagate the 78.4 meters back up to them. What's that speed ?
Speed = (distance) / (time)
Speed = (78.4 m) / (0.23 sec)
<em>Speed = 340.9 m/s</em>
We have that the time, to the nearest minute, when the water level is at 1.125 m for the second time after midnight is
From the Question we are told that
Maximum height
Minimum height
Time for next high tide will occur
Generally Average Height
Therefore determine Amplitude to be
Generally, the equation for Time is mathematically given by
At t=0
Where
Therefore
Hence the Time at is
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