Answer:
Climate is determined by averaging the seasonal weather conditions for a region over a period of many ______ years
Choose the correct association for: dense bushes rain forest or jungle
Choose the correct association for: plains savanna
Answer:
a= 0.5m/s^2
Explanation:
Force applied on an object is known as
F=m.a (Newton's second law states it)
a=F/m
a=5/10=0.5m/s^2
Answer:
Velocity of truck will be 20.287 m /sec
Explanation:
We have given mass of the truck m = 4000 kg
Radius of the turn r = 70 m
Coefficient of friction
Centripetal force is given
And frictional force is equal to
For body to be move these two forces must be equal
So
Answer: 18.9 calories
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.
Q = Heat absorbed
m= mass of substance = 1.0 g = 0.001 kg
c = specific heat capacity of aluminium =
Initial temperature = = 847 K
Final temperature = = 933 K
Change in temperature ,
Putting in the values, we get:
(1J=0.24cal)
The number of calories required for this heat up process is 18.9 calories.