Answer:
His average speed is 0.15 kilometer per minute or 2.5 meters per second.
Explanation:
average speed = distance/time
x = 3 km/20 minutes
x = 0.15
—
x = 3000 m/1200 s
x = 2.5
Incomplete question; Full question read;
Type the correct answer in the box. Spell all words correctly. Stephen is a student who wants to test his knowledge of medical terminology. <u>Which option could he use?</u>
For medical terminology, ___________ can include a single word part on one side, with the meaning on the other side. Stephen can test himself or can enlist the help of someone else to hold them up to test him.
Answer:
<u>Flashcard</u>
Explanation:
It is interesting to note that a flashcard is an effective memory and teaching aid. It usually<em> has a question on one side, and the other side contains the answer.</em>
Hence, Stephen can build his knowledge of medical terminology by making use of a flashcard himself or can enlist the help of someone else to hold them up to test him.
Answer:
V = 5.83 m/s
Explanation:
Given that,
Mass of a ball of a clay, m = 2 kg
Initial speed of the clay, u = 35 m/s
Mass of a box, m' = 10 kg
Initially, the box was at rest, u' = 0
We need to find the velocity of the box after the collision. Let V be the common speed. Using the conservation of momentum to find it.
So, the velocity of the box after the collision is equal to 5.83 m/s.
We will first convert feet to miles:
1 foot = 0.00018939 miles
300 foot = 0.056817 miles
Than seconds to hours:
2.92 seconds = 0.04867 minutes = 0.0008111 hours
Average speed :
v = d / t
v = 0.056817 miles / 0.008111 h
v = 70.05 miles per hour
Answer:
D. 100 cm
Explanation:
The speed of a wave is the wavelength times the frequency.
v = λf
Wave A and B have the same speed, so:
λf = λf
(50 cm) (7000 Hz) = λ (3500 Hz)
λ = 100 cm
