zuzannach zuzannach
  • 03-10-2021
  • Physics
contestada

Please help! Questions are in the picture

Please help Questions are in the picture class=

Respuesta :

mohammed1819049
mohammed1819049 mohammed1819049
  • 03-10-2021

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

Answer Link

Otras preguntas

please help! thank you!!
How did the government under the lords proprietors in south carolina compare to the governments in the other colonies (A) "The colonists were given full represe
Please help, I would appreciate it!!
Can anyone help with this please
Please give me the correct answers
Which of the following is the best and most complete definition for graphic design? a. An artistic and professional form of communication that focuses on the us
According to the declaration of endependance when do the people have the right to over throw their government ?
Who was the first person to classify fingerprints in to worlds loops in arches
The two name system that Linnaeus developed classifies organisms by
Toby buy a new lamp it cost 45.50 what is the total amount his credit card charge if the sale tax 7 percent