Answered

Westonci.ca is the Q&A platform that connects you with experts who provide accurate and detailed answers. Get detailed answers to your questions from a community of experts dedicated to providing accurate information. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Please help! Questions are in the picture

Please Help Questions Are In The Picture class=

Sagot :

mohammed1819049

Answer:

3500j

0.250 kg

14.14 m/s

220500 j

93.91 m/s

Explanation:

K.E =1/2 m v^2

first question

1/2×700×10=3500 j

second question

2×78.2/25^2= 0.250 kg

Third question

8kj=8000j

root (2×8000/80)= 14.14 m/s

Last one

P.E=MGH

so it will be

P.E=50×450×9.8=220500 j

the speed

root (2×220500/50)=93.91 m/s

We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Westonci.ca is committed to providing accurate answers. Come back soon for more trustworthy information.