Answer:
(1) it is transparent so it makes the reading difficult. (2) it is volatile. (3) it is a poor conductor of heat. (4) it has a higher specific heat capacity, so it absorbs more heat from the body with which it is kept in contact. (5) Water cannot be used in thermometer because of its higher freezing point and lower boiling point than other liquids . If water is used in a thermometer , it will start phase change at 0oC and 100oC and will not measure temperature , out of this range .
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Answer:
Temperature will be 305 K
Explanation:
We have given The asteroid has a surface area 
Power absorbed P = 3800 watt
Boltzmann constant 
According to Boltzmann rule power radiated is given by
So temperature will be 305 K
S s. S s abbs s sbsbs z sbs
Answer:
a. 
b. 
Explanation:
a)
F= 120,000N
Kinetic energy @ impact = 120,000*depth
b)
The momentum is equal to the impulse on him from the snow so:
Answer:
See below
Explanation:
Normal force = m g cos 53 = 8 kg * 9.8 m/s^2 * cos 53 = 47.1823 N
no work is done by this force
Force friction = coeff friction * force normal = .4 * 47.1823 = 7.55 N
work of friction = 7.55 * 2 m = 15.1 j
Force Downplane = mg sin 53 = 62.61 N
work = 62.61 * 2 = 125.22 j
Net Force downplane = force downplane - force friction = 55.06 N
net Work = force * distance = 55.06 N * 2 M = 110.12 j
