Answer:
1380 kph west
Explanation:
The resultant velocity is the sum of airplane velocity with respect to air and the velocity of wind with respect to ground. Since these 2 vectors are in opposite direction (east vs west), we will take the 20 kph east as negative
1400 west + 20 east = 1400 west + (-20)west = 1380 kph west.
answers:
m2 = 1.05 kg and m1 = 4.75 kg
Explanation:
the gravitational force is given by:
Fg = Gm1×m2/(r^2)
9.20×10^-9 = [(6.67×10^-11)×(m1×m2)]/[(19×10-2)^2]
(m1×m2) = 4.98 kg^2
m1 = 4.98/m2 kg
but we given that:
m1 + m2 = 5.80 kg
4.98/m2 + m2 = 5.80
4.98 + (m2)^2 = 5.80×m2
(m2)^2 - 5.80×m2 + 4.98 = 0
by solving the quadratic equation above:
m2 = 4.75 kg or m2 = 1.05 kg
due to that from the information, m2 has a lighter mass, then m2 = 1.05 kg.
then m1 = 5.80 - 1.05 = 4.75 kg.
Answer:
I think 1. is 17 and 2. is 600
Explanation:
sorry its been a while..
On December 7th, 1941, Pearl Harbor was attacked by Japanese forces. The next day, Franklin D. Roosevelt addressed the United States Congress with his memorable “a date which will live in infamy” speech.This speech had two purposes:To rally the American people to support the war effort.
Answer:
The magnetic field is strongest at the center and weakest between the two poles just outside the bar magnet. The magnetic field lines are densest at the center and least dense between the two poles just outside the bar magnet.
Explanation: