the density of alcohol is 789 kg/m ^3
The rays of light coming from the Sun are parallel to each other, so when they are reflected by the concave piece of glass (which acts as a concave mirror) they converge into the focus of the mirror, which is
The radius of curvature of a concave mirror is twice its focal length, so in this case it is:
Answer:16.096
Explanation:
Given
mass of dog
mass of boat
distance moved by dog relative to ground=
distance moved by boat relative to ground=
Distance moved by dog relative to boat=7.8m
There no net force on the system therefore centre of mass of system remains at its position
0=
0=
i.e. boat will move opposite to the direction of dog
Now
substitutingvalue
now the dog is 22.5-6.403=16.096m from shore
Answer:
Abstract
A methodology for designing mechanical non-uniform motion generators is presented. The basic requirements for four-bar and six-bar linkages are established and it is shown how the performance can be evaluated by harmonic analysis applied to the output angular velocity function. A means of creating and searching a library of mechanisms based on normalized output functions is presented. B-spline curves are used as a means of defining a desired performance and it is shown how minimum acceleration can be achieved with continuity in the derivatives. Finally, a means of increasing the quality of motion transmission in the selected mechanisms is given. The techniques are used to synthesize a six-bar linkage.
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