Answer:
Explanation:
Ocean contains salty water which causes the object to float rather than sinking, So yes it's easy to swim in ocean than water without salt.
Answer:
See explanation
Explanation:
We convert the speed of the car to ms-1
90 × 1000/3600 = 25 ms-1
a) from;
F= ma
a= F/m
a= 8400/1050 = 8 ms-2
b) from
v= u - at
v= 0
u = 25 ms-1
a= 8 ms-2
t= ?
t = u/a = 25/8 = 3.1 s
From;
v^2 = u^2 - 2as
v= 0 ms-1
u^2 = 2as
s = u^2/2a
s= (25)^2/2 × 8
s= 625/16
s = 39 m
Answer:
the internal resistance of the battery be minimized
Explanation:
Because from
P= I²R+I²r
The amount of emf of battery delivered to the external load depends on internal resistance r such that the smaller the r the higher the emf
Approximately 10,969,350,000.000. (i’m not sure but confident) :D
helium is rare and inert and allows balloons to rise. he wants it vheaply ...market may make it expensive.
He also used in low temperature cryogenics
