Answer:
for question no.4,
time =6 secs
acceleration due to gravity (g)= 9.8 m/s^2
velocity=gt
=6×9.8
=58.8m ans...
for question no .5,
time taken = 4seconds
aacceleration due to gravity (g)=9.8 m/s^2
distance=12gt
=12×9.8×4
=470.4meter answer...
Answer:
it is light
Explanation:
the arrow that says light is on the glass it must be near from tungsten
Answer:
<em>Venus will need to use more voltage to have the same current</em>
Explanation:
<u>Ohm's Law</u>
It states that the current through a conductor is directly proportional to the voltage applied to it and inversely proportional to the resistance of the conductor. This relationship can be written as
![\displaystyle I=\frac{V}{R}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20I%3D%5Cfrac%7BV%7D%7BR%7D)
Solving for V
![V=IR](https://tex.z-dn.net/?f=V%3DIR)
Venus originally connected a resistance
to a voltage
to get some current I
![\displaystyle I=\frac{V_1}{R_1}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20I%3D%5Cfrac%7BV_1%7D%7BR_1%7D)
The voltage needed to get that current is
![V_1=IR_1](https://tex.z-dn.net/?f=V_1%3DIR_1)
If Venus changes the light bulb to another with higher resistance, say,
, then the current would change, unless she uses another voltage
![V_2=IR_2](https://tex.z-dn.net/?f=V_2%3DIR_2)
![Since\ R_2>R_1,\ then\ V_2>V_1](https://tex.z-dn.net/?f=Since%5C%20R_2%3ER_1%2C%5C%20then%5C%20V_2%3EV_1)
Venus will need to use more voltage to have the same current