A tennis ball, a bowling ball, and a feather are dropped from the top of a tall building at the same time. Consider what you hav
e learned about air resistance. Which object reaches the ground first?
1 answer:
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We have the relation
where denotes the velocity of a body A relative to another body B; here I use B for boat, E for Earth, and R for river.
We're given speeds
Let's assume the river flows South-to-North, so that
and let be the angle made by the boat relative to East (i.e. -90° corresponds to due South, 0° to due East, and +90° to due North), so that
Then the velocity of the boat relative to the Earth is
The crossing is 153.0 m wide, so that for some time we have
which is minimized when so the crossing takes the minimum 30.0 s when the boat is pointing due East.
It follows that
The boat's position at time
is
so that after 30.0 s, the boat's final position on the other side of the river is
and the boat would have traveled a total distance of
Answer:
Explanation:
The first image that I attached to this solution is the diagram of a truth table for an 8 to 3 bit encoder.
The second image gives a sketch of the schematic.
The Boolean expression for the priority encoder including its zero inputs is defined in the third image attached.
Below is a snippet of the code for an 8 to 3 bit Priority encoder:
library IEEE;
use IEEE.STD_LOGIC_1164.all;
entity encoder8_3 is
port(
din : in STD_LOGIC_VECTOR(7 downto 0);
dout : out STD_LOGIC_VECTOR(2 downto 0)
);
end encoder8_3;
architecture encoder8_3_arc of encoder8_3 is
begin
dout <= "000" when (din="10000000") else
"001" when (din="01000000") else
"010" when (din="00100000") else
"011" when (din="00010000") else
"100" when (din="00001000") else
"101" when (din="00000100") else
"110" when (din="00000010") else
"111";
end encoder8_3_arc;
