Similar fossils found on different continents helped geologists determine how the continents used to be connected. Mountain belts marked the boundaries of moving plates, which showed in which direction the different continents drifted. Extrapolating from this information, scientists had a rough idea of how the continents were arranged eons ago.
Answer:
Explanation:
Conceptual analysis
We apply the kinematic formula for an object that moves vertically upwards:
Where:
: final speed in ft/s
: initial speed in ft/s
g: acceleration due to gravity in ft/s²
y: vertical position at any time in ft
Known data
For 
,
; where h is the maximum height
for y=h, 
Problem development
We replace , 
in the formula (1),
[
Equation (1)
in maximum height(h): , Then we replace in formula (1):
Equation(2)
We replace (h) of Equation(2) in the Equation (1) :
Your answer would be : A transmission electron microscope
Answer:
a) increases
Explanation:
The increase in temperature causes the particles to move much faster. This in turn effects the collision rate of the particle which causes the chemical reaction. Thus the rate of chemical reaction increases.
So, we conclude that the rate of a chemical reaction is directly related to temperature. With increase in temperature there is an increase in the reaction rate and vice versa.
Explanation:
Newton's second law:
∑F = ma
277 N − 245 N = (25 kg) a
a = 1.28 m/s²
