10°c
Explanation:
Given parameter;
Lower fixed point = 30mm
Upper fixed point = 180mm
Reading = 45mm
Unknown:
The degree celcuis temperature at 45mm = ?
Solution:
To solve this problem we simply compare the mm- scale to the celcius - scale that we know.
The upper fixed point is the boiling point of water
Lower fixed point is the freezing point of water
This shows that both the upper and lower fixed point of both thermometers are the same;
mm-scale °c scale
180mm 100°c
45mm x
30mm 0°c
Solving;
x (150) = 100 x 15
x = 10°c
learn more:
Temperature scales brainly.com/question/1603430
#learnwithBrainly
Complete Question
The complete question is shown on the first uploaded image
Answer:
The time taken is 
Explanation:
From the question we are told that
The value of 
The the interior temperature is 
The external temperature is 
The required interior temperature is 
The newton cooling law is
=> 
Now integrate both sides we have
Since c is a constant lnC = c will also give a constant so
=> 
=> 
substituting value
Hence
=> 
Answer:
Average force, F = 562.5 N
Explanation:
Mass of the golf ball, m = 0.045 kg
Initially, it is at rest, u = 0
Final speed of the ball, v = 25 m/s
The club and the ball are in contact for, 
We need to find the average force acting on the ball. It can be calculated using the formula as :
F = 562.5 N
So, the average force acting on the ball is 562.5 N. Hence, this is the required solution.
The car will gain new momentum if it's velocity is doubled or tripled.
