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VMariaS [17]
2 years ago
8

Mike rides his horse with a constant speed of 20 km/h. How far can he travel in 4 hours?

Physics
1 answer:
gizmo_the_mogwai [7]2 years ago
4 0

Answer:

Mike can travel 80 Km in 4 hours

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+
Triss [41]

The acceleration of the boat is 2 m/s^2 (eastward)

Explanation:

We can solve this problem by using Newton's second law, which states that:

F = ma (1)

where

F is the net force on a body

m is its mass

a is its acceleration

First of all, we have to find the net force acting on the boat. We have:

- The force of the motor, 100 N eastward

- The force of the air resistance, 60 N westward

So the net force is:

F = 100 N - 60 N = 40 N (eastward)

Now we can apply eq.(1), using:

F = 40 N

m = 20 kg (mass of the boat)

and solving for a, we find the acceleration:

a=\frac{F}{m}=\frac{40}{20}=2.0 m/s^2

And the direction is the same as the net force (eastward).

Learn more about acceleration and Newton laws of motion:

brainly.com/question/11411375

brainly.com/question/1971321

brainly.com/question/2286502

brainly.com/question/2562700

#LearnwithBrainly

4 0
3 years ago
bA cylinder is submerged in water as illustrated in the diagram. Which of the following statements is true? The pressure at B is
ozzi

Question: A cylinder is submerged in water as illustrated in the diagram. Which of the following statements is true?

Answer: The pressure at D is less than at B.

Explanation: this is because B has less amount of pressure and D has a lot more pressure weighing it down and B has less pressure

question answered by

(jacemorris04)


3 0
3 years ago
Read 2 more answers
If a motorcycle accelerates uniformly from rest at 5 m / s2, how long does it take for it to reach a speed of 20 m / s.
irina1246 [14]

Answer:

4 seconds

Explanation:

Given:

v₀ = 0 m/s

v = 20 m/s

a = 5 m/s²

Find: t

v = at + v₀

20 m/s = (5 m/s²) t + 0 m/s

t = 4 s

6 0
3 years ago
I WILL GIVE U A BRAINLIEST
Step2247 [10]

Answer:

answer is B

Explanation:

The table below shows the wavelengths for some electromagnetic waves

3 0
2 years ago
How do you tell a stars life expectancy based on an hr diagram?
e-lub [12.9K]
The X-axis of the H-R Diagram indicates the star's surface temperature in degrees Kelvin.  The Y-axis, on the other hand, indicates luminosity, or brightness.

Main sequence refers to a roughly diagonal, slightly S-curved line stretching between the upper-left and lower-right corners on which main sequence stars chart. They maintain a predictable relationship between luminosity and temperature: the brighter, the hotter. The upper-right quadrant of the H-R diagram is home to newly discovered red giants while the lower-left quadrant of the H-R Diagram belongs almost exclusively to white dwarfs.
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3 years ago
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