Specific heat capacity= heat energy/mass×temperature rise
962°C - 20°C = 942K
Heat energy (Eh) = 239 × 1.55 × 942
Eh= 348963.9J
shc of Ag: 238.6 J/kg-K
m of Ag: 1.55kg
Force = mass*acceleration so
3.6*2.5 =9 Newtons
To solve this problem it is necessary to apply the concepts related to the change of Energy in photons and the conservation of energy.
From the theory we could consider that the energy change is subject to

Where
Initial Energy
Energy loses
Replacing we have that


Therefore the Kinetic energy of the electron once it has broken free of the metal surface is 0.8eV
Answer:

Explanation:
When the springs are connected end to end, it means they are connected in series. When the springs are connected in series, the stress applied to the system gets applied to each of the springs without any change in magnitude while the strain of the system is the sum total of strains of each spring. The spring constant of the resultant system is given as,

Here, n = 10
Spring constant of each spring = k
Thus,




Answer: Acceleration of the car at time = 10 sec is 108
and velocity of the car at time t = 10 sec is 918.34 m/s.
Explanation:
The expression used will be as follows.


= 


As, 
u = -2900 m/s

= 
= 

Also, we know that
a =
= 
= 
At t = 10 sec,
= 918.34 m/s
and, a = 108 