Ptotal=Ptotal —> m1v1+m2v2=m1v1’+m2v2’ —> (1kg)(2m/s)+(1kg)(0m/s)=(1kg)(-1m/s)+(1kg)(v2’) —> v2’=3m/s
answer: v=3m/s
Answer:
True.
Explanation:
An electric circuit can be defined as an interconnection of electrical components which creates a path for the flow of electric charge (electrons) due to a driving voltage.
Generally, an electric circuit consists of electrical components such as resistors, capacitors, battery, transistors, switches, inductors, etc.
This electrical network which is usually a closed loop comprises of a device that provides the energy (voltage) to drive electrons or electric current; the device is referred to as a source such as a generator or battery.
Similarly, an integrated circuit (IC) also referred to as microchip can be defined as a semiconductor-based electronic component that comprises of many other tiny electronic components such as capacitors, resistors, transistors, and inductors.
Generally, integrated circuits (ICs) are used in virtually all modern electronic devices to carry out specific tasks or functions such as amplification, timer, oscillation, computer memory, microprocessor, etc.
Answer:
25 m
Explanation:
The relationship between Velocity, distance and time is given as
S = v/t........................... Equation 1
Where S = average velocity of the car, d = distance covered by the car, t = time
Making d the subject of the equation,
d = vt.................... Equation 2
Given: v = 6.25 m/s, t = 4.00 s.
Substitute into equation 2,
d = 6.25(4)
d = 25 m.
Hence, the distance traveled by the car = 25 m
Answer:
0.178 °C
Explanation:
Given:
The frictional force, F = 48 N
Number of rubs, n = 18
Distance covered per rub, d = 7.16 cm = 0.0716 m
Total distance covered in 18 rubs, D = 0.0716 × 18 = 1.288 m
mass of the tissues warmed, m = 0.1 kg
Now,
Work done, W = Force × Displacement
W = 48 × 1.288 = 61.8624 J
Now,
Work done is the change in heat
W = ΔQ = 61.8624 J
also,
ΔQ = mCΔT
where, C is the specific heat
for human tissue, C = 3470 J/kg°C
thus,
61.8624 J = 0.1 × 3470 × ΔT
or
ΔT = 0.178 °C
Hence, the change in temperature is 0.178 °C
A D and E are all types of light
