The core difference is that heat deals with thermal energy, whereas temperature is more concerned with molecular kinetic energy. Heat is the transfer of thermal energy, whereas temperature is a property the object exhibits.
Efficiency of a simple machine is the ratio of mechanical advantage and speed ratio.
If mechanical advantage = speed ratio then efficiency = 1
Which is impossible for a practical machine due to presence of frictional force which wastes some energy and thus lowers the output
<h2>
Its average speed (in km/h) on the second half is 298.76 km/hr</h2>
Explanation:
Length of track = 1600 m
Average speed = 250 km/h = 69.44 m/s
We have
Distance = Speed x Time
1600 = 69.44 x time
Time = 23.04 seconds
Total time = 23.04 seconds
Half of the track = 0.5 x 1600 = 800 m
Speed on first half = 215 km/hr = 59.72 m/s
We have
Distance = Speed x Time
800 = 59.72 x time
Time = 13.40 seconds
Time taken to complete remaining half = 23.04 - 13.40 = 9.64 seconds
Distance = 800 m
We have
Distance = Speed x Time
800 = Speed x 9.64
Speed = 82.99 m/s = 298.76 km/hr
Its average speed (in km/h) on the second half is 298.76 km/hr
On page number 2 for the question number 7 is answered by Oceanic-continental convergent plate boundaries expect that 1 plate is continental. Since oceanic crust has density of 3g/cc and continental crust has a density of only 2.7g/cc whenever oceanic crust collides with continental crust the oceanic crust subducts
Answer:
fem = -0.126 V
Explanation:
Faraday's law is
fem =
where the flow is
Ф = B . A = B A cos θ
bold letters indicate vectors.
In this case, the normal to the area is parallel to the magnetic field, so the angle is zero and the cos0 = 1
fem =
in this case they indicate that to carry the loop from outside to inside the field in Δt = 5 s, so we can change them by variations
fem =
let's calculate
fem = - 0.7 (0.9 -0) / 5
fem = -0.126 V