The problem is very unclear. The way I understand it is like this:
The yarn is rolling toward the cat, and from the instant the cat first touches
the yarn, it moves 17.5 cm 2 sec, in the direction opposite to the way it was
rolling.
Average speed during the 2 seconds after the bump = 17.5 / 2 = 8.75 cm/s .
Average speed = (1/2) (final speed away from the cat - 1 cm/sec towards the cat)
8.75 cm/s = (1/2) (final speed + 1)
Multiply each side by 2 :
17.5 = final speed + 1
Final speed = 16.5 cm/s
Acceleration = (change in speed) / (time for the change)
Acceleration = (16.5 + 1) / (20) = <u>0.875 cm/s² </u>.
My confidence level in this one is not excessive, but I'll submit it anyway,
and somebody else can explain to me where I went wrong.
Answer: purple
Explanation: The colors red and blue create purple when mixed together. They are both primary colors and cannot be created, but will both create purple when mixed together. Therefore, a purple light will shine on that part of the stage.
Answer:
or 0.07163 T into the page
Explanation:
m = Mass of particle = 10 g
a = Acceleration due to gravity = -9.8j m/s²
v = Velocity of particle = 19i km/s
q = Charge of particle = 72 μC
B = Magnetic field
Here the magnetic and gravitational forces on the particle are applied in the opposite direction so,
The magnetic field is 0.07163 T into the page
Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Answer:
because pennies are made from copper
Explanation: