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Lilit [14]
3 years ago
10

What is the distance covered in 20 minutes by a train traveling 500m/m?

Physics
1 answer:
MrMuchimi3 years ago
3 0

Answer:

answer is 10km

Explanation:

use "S =Ut "

S=distance U=velocity t =time

no need to convert time into seconds as the velocity has given in meters per minute

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What must an object have in order to exert a gravitational field?
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Answer:

power

Explanation:

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3 years ago
Which biome has the most extreme conditions
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Have a wonderful day user!
3 0
3 years ago
An electric grinder uses a grinding wheel
luda_lava [24]
(1500 rev/min)(min / 60 s) / (3.0 s) = 8.33 rev/s² 

<span>(B) </span>
<span>(1/2)(8.33 rev/s²)(3.0 s)² = 37.5 rev </span>

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3 0
3 years ago
Read 2 more answers
A fish finder uses a sonar device that sends 20,000-Hz sound pulses downward from the bottom of the boat, and then detects echoe
mrs_skeptik [129]

Answer:  The minimum time between pulses (in fresh water)

= 0.3106 s

Explanation:

To calculate the speed of echoes sounds, we will use

Speed = 2x/t

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Please note that:

sound travels at 343 m/s in air. But it travels at 1,481 m/s in water (almost 4.3 times as fast as in air); 

Total distance = 2 × 230 = 460m

Using speed of sound in water

1481 = 460/t

t = 460/1481

t = 0.3106

3 0
3 years ago
A billiard ball moving at 5 m/s strikes a stationary ball of the same mass. After the collision, the original ball moves at a ve
SIZIF [17.4K]

90 degrees - 30 = 60 degrees

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8 0
3 years ago
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