Answer:
reacts with metals: acid
reacts with nonmetal: base
taste sour: acid
can cause burns: both
conduct electricity: both
taste bitter: base
Answer: Look where the points are.
Explanation:
Wee can use here kinematics
as we know that

for shorter tree we know that


now since we know that other tree is twice high
So height of other tree is y = 39.2 m
now again by above equation



so the time taken is 2.83 s
Answer:
A. 112 J
Explanation:
KE = ½mv² = ½(0.14)40² = 112 J
To determine the amount in grams of the iron, we need data on the density of iron. From literature, it has a value of <span>p=7.9 g/cm3. We simply multiply the volume to the density. We do as follows:
mass = 3.70 (7.9) = 29.23 g Fe
Hope this answers the question. Have a nice day.</span>