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siniylev [52]
3 years ago
12

What is the speed of a truck that travels 10 km in 10 minutes?

Physics
2 answers:
Contact [7]3 years ago
8 0

Answer:

10 minutes: 10 km

1 minute: 10 ÷ 10 = 1 km

the speed of the truck is 1km/min

kumpel [21]3 years ago
5 0

Answer:

1 kilometer/minute

Explanation:

If we want to find the speed, we must divide the distance by the time.

s= \frac {s}{t}

The truck travels a distance of 10 kilometers in 10 minutes.

d= 10 km\\t=10 min

Substitute the values into the formula and divide.

s=\frac{d}{t}

s=\frac{10 km}{10min}

s= 1 km/min

The speed of the truck is 1 kilometer per minute.

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Multi-Select Question
dalvyx [7]

Answer:

Correct Options :

<u>Acceleration on Earth: 1.6 m/s</u>

<u>Mass on the Moon: 100 </u><u>kg</u>

7 0
3 years ago
In which direction does the electric field point at a position directly east of a
svlad2 [7]

Answer:

<h2>D. East </h2><h3>That's my correct answer</h3>

3 0
2 years ago
No work is done on an object when a force acting on the object does not move it. True False
myrzilka [38]

Answer:

True

Explanation:

Since the definition of work in physics is the magnitude of force applied to an object and multiplied by the distance than the object is moved, if the object remains in the same place although there is a force acting on it, there will be not work done.

3 0
3 years ago
A 42.0-cm diameter disk rotates with a constant angular acceleration of 2.70 rad/s2. It starts from rest at t = 0, and a line dr
Zielflug [23.3K]

Answer:

6.21 rad/s

1.3041 m/s, 0.567 m/s²

106.4778\ ^{\circ}

Explanation:

\omega_f = Final angular velocity

\omega_i = Initial angular velocity = 0

\alpha = Angular acceleration = 2.3 rad/s²

\theta = Angle of rotation

t = Time taken = 2.3 s

Equation of rotational motion

\omega_f=\omega_i+\alpha t\\\Rightarrow \omega_f=0+2.7\times 2.3\\\Rightarrow \omega_f=6.21\ rad/s

The angular speed is 6.21 rad/s

Linear velocity is given by

v=r\omega\\\Rightarrow v=0.21\times 6.21\\\Rightarrow v=1.3041\ m/s

Linear velocity is 1.3041 m/s

Tangential acceleration is given by

a_t=r\alpha\\\Rightarrow a_t=0.21\times 2.7\\\Rightarrow a_t=0.567\ m/s^2

Tangential acceleration is 0.567 m/s²

\theta=\omega_it+\dfrac{1}{2}\alpha t^2\\\Rightarrow \theta=0\times t+\dfrac{1}{2}\times 2.7\times 2.3^2\\\Rightarrow \theta=7.1415\ rad

In degress the angle would be

57.3+7.1415\times \dfrac{180}{\pi}=466.47780\ ^{\circ}

From x axis it would be

466.47780-360=106.4778\ ^{\circ}

The angle is 106.4778\ ^{\circ} from x axis

7 0
3 years ago
Why are hurricanes considered more damaging than tornadoes when tornadoes have stronger winds
chubhunter [2.5K]

-- A tornado follows a path that's a few miles wide, for a few hours.
   Then it's all over.

-- A hurricane follows a path that's several hundred miles wide,
   for a week or two, before it's over.
   Then comes the rain, continuing on the same path, for another week.

8 0
2 years ago
Read 2 more answers
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