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marissa [1.9K]
2 years ago
7

If John travels 2,387 miles in 2 days, what's his average speed per hour?

Physics
2 answers:
KonstantinChe [14]2 years ago
4 0

Answer:49.7mph

Explanation: 2387 divided by 2 days (which is 48 hours)

2387/48 = 49.7 is what I got.

klasskru [66]2 years ago
3 0
In 2 days there are 48 hours
to find the average speed per hour, divide 2,387 by 48
Which gets you the answer 49.72
Which rounds up to 50

The average speed is 50mph
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Answer:

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Explanation:

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3 years ago
When a wave has λ=3 m and f=15 Hz, what is the speed of the wave?
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Wave speed = (wavelength) x (frequency)

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5 0
2 years ago
Bob is pushing a box across the floor at a constant speed of 1.5 m/s, applying a horizontal force whose magnitude is 60 n. alice
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3 years ago
A basketball player is 4.22 m from
max2010maxim [7]

Answer: The height above the release point is 2.96 meters.

Explanation:

The acceleration of the ball is the gravitational acceleration in the y axis.

A = (0, -9.8m/s^)

For the velocity we can integrate over time and get:

V(t) = (9.20m/s*cos(69°), -9.8m/s^2*t + 9.20m/s^2*sin(69°))

for the position we can integrate it again over time, but this time we do not have any integration constant because the initial position of the ball will be (0,0)

P(t) = (9.20*cos(69°)*t, -4.9m/s^2*t^2 + 9.20m/s^2*sin(69°)*t)

now, the time at wich the horizontal displacement is 4.22 m will be:

4.22m = 9.20*cos(69°)*t

t = (4.22/ 9.20*cos(69°)) = 1.28s

Now we evaluate the y-position in this time:

h =  -4.9m/s^2*(1.28s)^2 + 9.20m/s^2*sin(69°)*1.28s = 2.96m

The height above the release point is 2.96 meters.

3 0
3 years ago
Read 2 more answers
Activity
vodka [1.7K]
Your welcome LOL plz like

5 0
2 years ago
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