Answer:
h = 30.57 m
Explanation:
given,
angle made with horizon, θ= 27°
Length of the shadow,L = 60 m
now,
the height of the tree would be equal to
h = 60 x tan 27°
h = 30.57 m
hence, height of the tree is equal to 30.57 m
Radio wave is the longest wavelength
The area between the thorajand pelvis in humans constitutes the part of the body
known as the SPINE
I would say all of them but if I had to choose one I would say the days would get shorter because if earth began to spin faster then the sun would only be out for a couple of hrs and we would mostly see night than day
Answer:
Her average speed is 5 miles per hour.
Explanation:
Average speed is the ratio of total distance travelled in particular time.
The park's pond is 0.5 miles around.
She can swim 20 laps, it means she can swim total = 20 × 0.5
= 10 miles.
Time taken by her to complete the track = 2 hour
Now, Average speed =
=
= 5 miles/hour.