Answer:
7 mm per year
Explanation:
It is given that :
The Pacific plate is moving towards north at = 29 mm per year
The Pacific plate is moving towards west at = 20 mm per year
We have to calculate the total relative motion towards the northwest.
So we have to find the resultant of the two motions.
Since the two movements are perpendicular, therefore the angle between the two motions is 90 degree.
Therefore, finding their resultant,
R = 7
Therefore, total relative motion towards the northwest is 7 mm per year.
Answer:
a) 8.58 m/s upward
b) -2.211 m/s downward
Explanation:
Let gravitational acceleration g = -9.81m/s2. This is negative because it deceleration the upward motion of the key.
(a)We have the following equation of motion
where 
is the initial upward velocity of the keys, t = 1.1s is the time it takes for the keys to travel a distance of s = 3.5 m
So the keys were thrown initially upward with a speed of 8.58 m/s
(b) If the initial velocity of the key is 8.58 m/s and it is subjected to a deceleration of 9.81m/s2 for 1.1s then the velocity right at the 1.1s instant is
So they keys would have a downward speed of 2.211 m/s
Answer:
Virtual image
Explanation:
Virtual image is formed whenever the rays of an object diverges
Answer:
Thermometers:
1. Mercury thermometer
2. Alcohol thermometer
3. Thermocouple
4. Bimetallic strip
5. Resistance thermometer
Thermometric substances:
1. Mercury
2. Alcohol
3. Thermocouple
4. Bimetallic strip
5. Resistance thermometer
Thermometric properties:
1. Mercury's expansion with temperature
2. Alcohol's expansion with temperature
3. The voltage generated by a thermocouple
4. The change in shape of a bimetallic strip
5. The change in resistance of a resistance thermometer
Explanation:
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