While gas cells for earlier German zeppelins were made of goldbeater's skin (the outer membrane of cattle intestines) the cells aboard Hindenburg used a new material, similar to that used by the Americans, which was made by brushing layers of gelatine onto a sheet of cotton; this gelatine film was sandwiched between ...
The main difference is direction. C.
Speed is a scalar quantity, while Velocity is a vector quantity.
Speed is measured without taking into fact direction, but Velocity takes into fact the direction.
Answer:
3.55kg
Explanation:
K. E = ½mv²
Where m = mass, v = velocity
K. E = 300J
v = 13m/s
Therefore,
K. E = ½mv²
300 = ½ × m × 13²
Multiply both sides by 2
600 = m × 169
Divide both sides by 169
m = 600 ÷ 169
mass = 3.55kg
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