Answer:
Option I
Explanation:
When ever the system is in equilibrium, it means the net force on the system is zero.
If the number of forces acting on a system and then net force on the system is zero, it only shows that the vector sum of all the forces is zero.
Answer:
16 m / s
Explanation:
Average kinetic energy of one mole of a gas is given by the expression
K.E = 3 / 2 R T { T is absolute temperature of the gas }
Putting the values , we get
4070 = 3 / 2 X 8.312 X T
T = 326.35 K
Under similar condition temperature of oxygen will also be same . So temperature of oxygen gas will be 326.35 K.
Now ,RMS value of a gas =
T is absolute temperature of gas and M is molecular mass.
Molecular mass of oxygen is 32 gm . T is 326.35
RMS speed =
= 16 m / s . approx.
Answer:c
Explanation:
Given
object is falling Freely with an odometer
Suppose it falls with zero initial velocity
so distance fallen in time t is given by
here u=0 and t=time taken
for
for
distance traveled in 2 nd sec
for
distance traveled in 3 rd sec
so we can see that distance traveled in each successive second is increasing
The answer is gentle yoga