An 8.0g bullet is fired horizontally into a 9kg block of wood on a frictionless table and is embedded in it. after the collis6, the block and the bullet slide ,along the surface together with a speed of 10cm/s.

a. find the initial speed

b. find the kinetic energy of the system before collision

c. find the kinetic energy of the system after collision

d. what percentage of the systems original kinetic energy was lost

if you can.

Estimate of the number of stars in our galaxy

Sasha has just gotten a new job in a nearby city. after comparison shopping, she found that renting a nice two-bedroom apartment would cost around $800 per month. her utilities would cost about $150 per month. sasha has enough money saved for a down payment, and she found that she can buy a three-bedroom house or condo with a mortgage payment of $1,000 per month, including taxes and homeowner's insurance. her utilities would cost about $200 per month. what is the advantage of buying the house over renting the apartment?

Acid rain is caused by human activity. select the best answer from the choices provided t f