A block is being pulled a spring scale. The block has a 10g mass. Which change will create a larger force reading on the spring scale?

A. Sliding the block 60 cm
B. Attaching a larger spring scale
C. Using a 20 g mass block
D. Using a circular piece of wood
Clear

c

Explanation:

F = ma

If you increase the mass but hold the acceleration constant you will increase the force and thus the spring scale will read higher

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.