So.......
here,
Mass (m) = 20g
Change in Temperature (ΔT) = 29C-10C
= 19C
Specific Heat Capacity = 0.1 cal/ g C
now, plug the info. into the formula,
specific heat capacity = quantity of heat / (mass * change in temperature)
0.1 = quantity of heat / (20 * 19)
0.1 = quantiy of heat / 380
0.1 * 380 = quantity of heat
38 = quantity of heat
so the granite rock boulder absorbed 38 calories of heat energy from the sun
Use v^2 - u^2 = 2as
Here, u = 20 m/s , a = -0.5 m/s^2 and v = 0
- 400 = -s ======> s = 400 m
Hope it helps, please mark me as brainliest and give me a good rating. Thank You!
This can be seen through the fact that Aksionov has the ability to seek his own justice many times throughout the story, yet does not take it
Material 1 will be having the largest Young's modulus followed by Material 5, Material 3, Material 2 and Material 4.
Answer:
Option C.
Explanation:
Materials can be classified based on their elastic nature. Elasticity is the property of an object to return to its original state after deformation is removed. So the deformation can be occurred on that object due to the force or stress acting on that object.
As per Hooke's law, the stress acting on any object is directly proportional to the deformation or strain experienced by that object. And the constant of proportionality is termed as Young's modulus.
Young's modulus = Stress/Strain
So from the table, the young's modulus for all the materials are found as below.
Material 1 = Stress/Strain = 775/7.34E-06 = 106 ×
Material 2 = 900/1.86E-02=48400
Material 3 = 1200/2.55E-05 = 471×
Material 4 = 1500/3.95E-03=389×
Material 5 = 2500/2.53E-05=988×
So as per the given calculations, Material 1 will be having the largest Young's modulus followed by Material 5, Material 3, Material 2 and Material 4.
Answer:
The correct answer is C.) Static Friction > Sliding Friction
Explanation:
Static, sliding, and rolling friction occur between solid surfaces. Static friction is strongest, followed by sliding friction, and then rolling friction, which is weakest. Fluid friction occurs in fluids, which are liquids or gases. Hope this helps!