<span> velocity increases by √3</span>
The object would have a centripetal acceleration <em>a</em> of
<em>a</em> = (12 m/s)² / (0.7 m) ≈ 205.714 m/s²
so that the required tension in the string would be
<em>T</em> = (0.5 kg) <em>a</em> ≈ 102.857 N ≈ 100 N
(rounding to 1 significant digit)
Answer:
hope this helps you :)
Explanation:
An object is in motion if its position changes relative to another object. To decide if you are moving, you can use your chair as a reference point. A reference point is a place or object used for comparison to determine if something is in motion.
66.7 Watts
Explanation:
Let
ohms,
ohms and
ohms. Since
and
are in parallel, their combined resistance
is given by

or

The total current flowing through the circuit <em>I</em> is given

where

Therefore, the total current through the circuit is

In order to find the voltage drop across the 6-ohm resistor, we first need to find the voltage drop across the 1-ohm resistor
:

This means that voltage drop across the 6-ohm resistor
is 20 V. The power dissipated <em>P</em> by the 6-ohm resitor is given by

Momentum = mass x acceleration
5 x 2 = 10 kg. m/s