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Semenov [28]
3 years ago
14

If the 50 kg objects slows down to a velocity of 1 m/s how much kinetic energy does it have?

Physics
2 answers:
Anettt [7]3 years ago
6 0

Answer: 25

Explanation:

Bogdan [553]3 years ago
3 0

It has 50kg with a velocity of 1 m/s times the speed of the cart divided by 2 and multiplied by kinectic x plus 5

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A bus traveled down Interstate 35 at a speed of 75 km/h for 4 hours. How many kilometers was the bus speeding?
vesna_86 [32]

Answer:

300 kilometers

Explanation:

75 km x 4  = 300 km

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By what factor must we increase the amplitude of vibration of an object at the end of a spring in order to double its maximum sp
strojnjashka [21]

Answer:

A'=2A

Explanation:

According to the law of conservation of energy, the total energy of the system can be expresed as the sum of the potential energy and kinetic energy:

E=U+K=\frac{kA^2}{2}\\E=\frac{kx^2}{2}+\frac{mv^2}{2}=\frac{kA^2}{2}

When the spring is in its equilibrium position, that is x=0, the object speed its maximum. So, we have:

\frac{k(0)^2}{2}+\frac{mv_{max}^2}{2}=\frac{kA^2}{2}\\A^2=\frac{mv_{max}^2}{k}\\A=\sqrt{\frac{mv_{max}^2}{k}}

In order to double its maximum speed, that is v'{max}=2v_{max}. We have:

A'=\sqrt{\frac{m(v'_{max})^2}{k}}\\A'=\sqrt{\frac{m(2v_{max})^2}{k}}\\A'=\sqrt{\frac{4mv_{max}^2}{k}}\\A'=2\sqrt{\frac{mv_{max}^2}{k}}\\A'=2A

6 0
3 years ago
10. Bites of some animals can cause<br><br>sprain<br>tetanus<br>rables​
Burka [1]

Answer:

an infection, including bacterial and rabies infections.

broken animal teeth embedded in your wound.

foreign objects embedded in your wound.

possible nerve and blood vessel damage.

5 0
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If the density of a diamond is 3.5 g/cm", what would be the mass of a diamond whose
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Answer:

Explanation:

7 0
4 years ago
Help help help please , i will give brainliest
finlep [7]

Answer:

I believe the answer for #1 is D and the answer for #2 is B

Explanation:

I hope this is correct and helps

6 0
3 years ago
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