Since angular speed is persistent, v/r is constant.
Where:
v is tangential speed;
and
r is distance from
axis.
Then equate v/r in both cases to get v in the second case.
Hence, speed = 2.2 x 2.1 / 1.4 meters
= 3.3 meters / seconds
Alternative solution would be:
w = 2.2 / 1.4 = 1.57
v = rw = 2.1 x 1.57 = 3.3 meters / seconds
I think that peeing might be the correct answer? xD
Answer:
(a), (c) and (e) s correct.
Explanation:
a. the power used by a circuit is the resistance times the current squared.
The power is given by P = I^2 R, so the statement is correct.
b. electric and magnetic fields are transporting the energy.
false
c. electrons are transporting the energy.
The energy is transferred by flow of electrons. It is correct.
d. the power used by a circuit is the voltage times the current squared.
The power is given by P = V I, the statement is wrong.
e. the power used by a circuit is the current times the voltage.
The power is given by P = V I, the statement is correct.
Answer:
The person is on the Moon having a weight of 500 N. The acceleration of gravity on the Moon is approximately 1.6 m/s2. What is your his, which includes his space suit?
f= Force (of gravity)=500N
g=acceleration of gravity=1.6m/s^2
m=mass=312kg
m=f/a= 500N/1.6 m/s^2 = 500 (kg-m/1.6m/s^2) = 500/1.6kg = 312kg
his mass is 312kg
