A 50 Kg man is running at a speed of 18 Km H−1. If all the kinetic energy of the man can be used to increase the temperature of water from 20°C to 30°C
Sahay Sir > Question Answers > A 50 Kg man is running at a speed of 18 Km H−1. If all the kinetic energy of the man can be used to increase the temperature of water from 20°C to 30°C
19 g of water at 30°C and 5g of ice at −20°C are mixed together in a calorimeter. What is the final temperature of the mixture? Given specific heat of ice = 0.5calg^−1°C^−1 and latent heat of fusion of ice = 80calg^−1
08
Sep
19 g of water at 30°C and 5g of ice at −20°C are mixed together in a calorimeter. What is the final temperature of the mixture? Given specific heat of ice = 0.5calg^−1°C^−1 and latent heat of fusion of ice = 80calg^−1 A 50 Kg man is running at a speed of 18 Km H−1. [...]
A student takes 50gm wax (specific heat = 0.6 kcal/kgºC ) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively
08
Sep
A student takes 50gm wax (specific heat = 0.6 kcal/kgºC ) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively A 50 Kg man is running at a speed of 18 Km H−1. If all the kinetic [...]
A lead bullet penetrates into a solid object and melts. Assuming that 50% of its kinetic energy was used to heat it, calculate the initial speed of the bullet. The initial temperature of the bullet is 27^∘ C and its melting point is 327^∘ C . Latent heat of fusion of lead = 2.5 × 10^4 J/k g and specific heat capacity of lead = 125 J/kg- K .
08
Sep
A lead bullet penetrates into a solid object and melts. Assuming that 50% of its kinetic energy was used to heat it, calculate the initial speed of the bullet. The initial temperature of the bullet is 27^∘ C and its melting point is 327^∘ C . Latent heat of fusion of lead = 2.5 × [...]
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A 50 Kg man is running at a speed of 18 Km H−1. If all the kinetic energy of the man can be used to increase the temperature of water from 20°C to 30°C ,
A lead bullet penetrates into a solid object and melts. Assuming that 50% of its kinetic energy was used to heat it ,
how much water can be heated with this energy? ,
A ball of mass 1 kg is dropped on a floor from a height of 2.0 m. After the collision it rises up to a height of 1.5 m. Assume that 40% of the mechanical energy lost goes as thermal energy into the ball. The rise in the temperature of the ball is
08
Sep
A ball of mass 1 kg is dropped on a floor from a height of 2.0 m. After the collision it rises up to a height of 1.5 m. Assume that 40% of the mechanical energy lost goes as thermal energy into the ball. The rise in the temperature of the ball is A 50 [...]
A 50 Kg man is running at a speed of 18 Km H−1. If all the kinetic energy of the man can be used to increase the temperature of water from 20°C to 30°C, how much water can be heated with this energy?
08
Sep
A 50 Kg man is running at a speed of 18 Km H−1. If all the kinetic energy of the man can be used to increase the temperature of water from 20°C to 30°C, how much water can be heated with this energy? A 50 Kg man is running at a speed of 18 Km [...]