Specific Heat Capacity J/kg,kcal, Cal/g.c​

shaukat313 shaukat313
  • 08.04.2021
  • Science
  • Secondary School
answered Specific heat capacity J/kg,kcal, cal/g.c​ See answer princeameta2882007 princeameta2882007 princeameta2882007

Explanation:

C)↔cal/(g.C) 1 cal/(g.C) = 4186.7981879537 J/(kg. C) J/(kg. C)↔kcal/(kg.

New questions in Science

1 State & explain the principle of conservati of angular momentum? on illastration. use a Suitable Do we use it in daily life? when ouro​ When a pendulum swings, potential energy (PE) at the peak converts to kinetic energy (KE) at the bottom, then back to PE as it rises, demonstrating en … ergy conversion, not loss, with total mechanical energy constant in an ideal system; however, in reality, air resistance and friction transform this mechanical energy into heat and sound, causing the bob to slow down and stop, which isn't a violation but a transformation of energy to the environment (surroundings), making the pendulum-plus-air system's total energy conserved. Energy Transformation During Oscillation (Ideal Case) At Highest Point (A): Pendulum is held aside. It has maximum Potential Energy (PE) and zero Kinetic Energy (KE). Swinging Down (A to B): PE decreases as height drops, converting into increasing KE. At the lowest point (B), PE is minimum (zero), and KE is maximum. Swinging Up (B to C): KE decreases as the bob rises, converting back into PE. At the opposite highest point (C), KE is zero, and PE is maximum again. Total Energy: In an ideal, frictionless scenario, the sum of PE + KE remains constant throughout the swing, illustrating the law. Why It Stops (Real-World Case) Energy Loss: Air resistance (drag) and friction at the pivot oppose the motion, doing work against the pendulum. Conversion to Heat: This work converts the pendulum's mechanical energy into thermal energy (heat) and sound, dissipating it into the air and pivot. < >Damping< >: This gradual energy loss causes the amplitude (height of swing) to decrease until the bob stops at its resting position. Is It a Violation? No, it's not a violation: The total energy of the entire system (pendulum + air + surroundings) remains constant. The energy isn't destroyed; it's just transformed from organized mechanical energy (swinging) to disorganized thermal energy (heat) in the environment, which is still conserved energy. explain the phenomenon of total internal refraction​ An alloy circular bar ABCD 3m long is subjected to a tensile force of 50 Nas shown in figure. If the stress in the middle portion BC is not to exceed … 150 MPa, then wheat should be its diameter. Find the length of the middle portion, if the total extension of the bar should not exceed by 3 mm. Take E as 100 GPa.​ que.(H)(1):- Name any three root modifications and describe their significance ​ Previous Next

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