Answer:
2.5 m/s²
Explanation:
a = ∆v/∆t = (15 m/s)/(6 s) = (15/6) m/s² = 2.5 m/s²
Use the conservation of angular momentum; angular momentum at the beginning = angular momentum at the end
Conservation of angular momentum:
I1 w1 = I2 w2
Where I is the moment of inertia. For a sphere, I=2/5 m R^2. Substituting into the equation above we get
w2 = I1 w1 / I2 = w1 m1 R1^2 / (m2 R2^2)
w2 = w1 4 * (R1/R2)^2
= 4*(1)*(7E5/7.5)^2
= 3.48E10 revs/(17days)
= 2.04705882 x 10^9 revs/sec
Answer:
The distance from her hands to the kite is 60.4 feet.
Explanation:
Given that,
Kendra holds the string from the ground = 3 feet
Distance of kite from the ground = 35 feet
Suppose the angle is 32°.
According to the figure,
We need to calculate the distance from her hands to the kite
Using formula of angle
Put the value into the formula
Hence, The distance from her hands to the kite is 60.4 feet.
Answer:
anions
Explanation:
The other are families of the periodic table.
An anion is a negatively charged ion.
The answer is C: West to the East