Answer:
2 and 0.6 ohms = 1.8A
4ohms = 1.08A
6 ohms = 0.72 ohms
Explanation:
With the help of the given diagram calculate the current through each resistor.
According to ohms law
E = IRt
E is the electromotive force = 9V
I is the total current in the circuit
Rt is the total equivalent resistance
Get Rt
1/R = (1/4+1/6) (parallel resistors)
1/R = 3+2/12
1/R = 5/12
R = 12/5
R = 2.4 ohms
Rt = 2 + 0.6 + 2.4
Rt = 5 ohms
Get the total current
I = E/Rt
I = 9/5
I = 1.8A
Since same current flows in a series connected resistors
Current in the 2 and 0.6 ohms resistors will be 1.8A
For the 4 and 6 ohms resistor:
Voltage across them is expressed as:
V = IR
V = 1.8(2.4)
V = 4.32Volts
The current in 4 ohms resistor
I = 4.32/4
I = 1.08A
The current in 6 ohms resistor
I = 4.32/6
I = 0.72A
Answer:
<em>The rock reaches a maximum height of 442.225 m and was thrown at a speed of 93.1 m/s</em>
Explanation:
<u>Vertical Launch</u>
The rock is launched up with a certain speed vo, it reaches its highest point at a height h when the speed is zero, and then it stars a free-fall motion until it hits the ground at time t.
The maximum height is given by
The rock takes the same time to reach this point as to return to the ground, thus we can calculate the maximum height
The rock was thrown up at a speed
Answer:
angle of refraction is the same as angle of incidence
Explanation:
Given that,
Bulk modulus
Change in volume
Edge
The volume of the cube at the ocean's surface will be
Where, a = edge
Put the value into the formula
We need to calculate the change in pressure
Using formula of pressure
Put the value into the formula
The pressure increases by for every meter of depth
We need to calculate the depth
Using formula for depth
Hence, The depth is 9.75 m.
Answer:
Explanation:
Given ,
dv / dt = k ( 160 - v )
dv / ( 160 - v ) = kdt
ln ( 160 - v ) = kt + c , where c is a constant
when t = 0 , v = 0
Putting the values , we have
c = ln 160
ln ( 160 - v ) = kt + ln 160
ln ( 160 - v / 160 ) = kt
(160 - v ) / 160 =
1 - v / 160 =
v / 160 = 1 -
v = 160 ( 1 - )
differentiating ,
dv / dt = - 160k
acceleration a = - 160k
given when t = 0 , a = 280
280 = - 160 k
k = - 175
a = - 160 x - 175
a = 28000
when a = 128 t = ?
128 = 28000
= .00457