Answer
given,
conducting wire length = ℓ m = 0.5
moves at velocity = v m/s = v ( t ) = 4 t + 9
magnetic field strength = B = 2 T
V = − B ℓ v
V = - 2 × 0.5 × v
V = - v
a) 
b) given
v ( t ) = 4 t + 9
V = (-1)(4t + 9)
Explanation:
1) speed of bicycle = 
speed of bicycle= 
speed of bicycle = 10 miles/hour
2)speed of rocket =
speed of rocket= 
speed of rocket= 742.57 meter/second
3)speed of jet plane =
speed of jet plane= 
speed of jet plane= 132 meter/second
4)speed =
time = 
time of trip= 
time of trip = 4.375 hour
5) Distance = speed × time
Distance = 6 × 3 × 60
Distance = 1080 meter
6) Average speed = 
Average speed = 
Average speed = 81.6 km/hour
7) Time = 
Time = 
Time = 3750 m/s
Geology belongs to the category of Natural Sciences. Natural sciences is the study of natural phenomena. Among the natural sciences, we have physical science, which is the study of non-living systems. Further along this branch, we have earth sciences where Geology belongs.
Well from a non professional standpoint, an athlete-or any other individual, can stretch to relax his/her muscles. Another easy method of muscle relaxation, is icing. Icing your muscles can help release tension in your muscle ligaments.
Answer:
953.5 J/kg.°C
Explanation:
From the question,
Heat lost by the metal = heat gained by the glass.
cm(t₁-t₃) = c'm'(t₃-t₂)................. Equation 1
Where c = specific heat capacity of the metal, m = mass of the metal, c' = specific heat capacity of the glass, m' = mass of the glass, t₁ = initial temperature of metal, t₂ = initial temperature of glass, t₃ = Equilibrium temperature
Make c' the subject of the equation
c' = cm(t₁-t₃)/m'(t₃-t₂)................ Equation 2
Given: m = 5 kg, c = 650 J/kg.°C, m' = 1.25 kg, t₁ = 80 °C, t₂ = 20 °C, t₃ = 63.9 °C
Substitute these values into equation 2
c' = 5×650(80-63.9)/1.25(63.9-20)
c' = (5×650×16.1)/(1.25×43.9)
c' = 52325/54.875
c' = 953.5 J/kg.°C
