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Most popular questions and responses by Heart
  1. physics

    A 65 kg diver jumps off of a 10.0 m tower. a. Find the diver's velocity when he hits the water. b. The diver comes to a stop 2.0 m below the surface. Find the net force exerted by the water. Ok, im a little confused about this problem. We knoe the mass of

    asked on December 23, 2009
  2. physics =)

    A 0.200 kg plastic ball moves with a velocity of 0.30 m/s. It collides with a second plastic ball of mass 0.100 kg, which is moving along the same line at a speed of 0.10 m/s. After the collision, both balls continue moving in the same, original direction.

    asked on December 25, 2009
  3. physics =)

    A race car has a mass of 710 kg. It starts from rest and travels 40.0 m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?

    asked on December 23, 2009
  4. physics

    The Moon's mass is 7.34 x 10^22 kg, and it is 3.8 x 10^8 away from Earth. Earth's mass if 5.97 x 10^24 kg. a. Calculate the gravitional force of attraction between Earth and the Moon. b. Find Earth's gravitional field at the moon. GIVEN: Moon's mass = 7.34

    asked on December 24, 2009
  5. physics

    A 0.145 kg baseball is pitched at 42 m/s. The batter hits it horizontally to the pitcher at 58 m/s. GIVEN: m = 0.145 kg v = 42 m/s batter v = 58 m/s a. Find the change in momentum of the ball. p = mv p = (0.145)(42) p = 6.09 --> What velocity would I use?

    asked on December 25, 2009
  6. physics

    A 1.25-kg book in space has a weight of 8.35 N. What is the value of the gravitational field at that location? GIVEN: m = 1.25 kg W = 8.35 N Therefore, they want the acceleration. Would I use this equation g = Fg/m?

    asked on December 24, 2009
  7. physics

    A 0.200 kg plastic ball moves with a velocity of 0.30 m/s. It collides with a second plastic ball of mass 0.100 kg, which is moving along the same line at a speed of 0.10 m/s. After the collision, both balls continue moving in the same, original direction.

    asked on December 25, 2009
  8. physics

    A 65 kg diver jumps off of a 10.0 m tower. a. Find the diver's velocity when he hits the water. b. The diver comes to a stop 2.0 m below the surface. Find the net force exerted by the water. Ok, im confused, I found velocity which is 14. But for the net

    asked on December 24, 2009
  9. physics

    A bike travels at a constant speed of 4.0 m/s for 5.0 s. How far does it go? GIVEN: V = 4.0 m/s t = 5.0 s Would you use this equation? D= Vit + 1/2 at^2

    asked on December 24, 2009
  10. attack (check)!!!!!

    Bobby: Blood pressure: 120/70 Cardiac output 5.0 Hemoglobin: 5.0 Urine output 5.0 Ken: Blood pressure: 130/80 Cardiac output 5.5 Hemoglobin: 5.5 Urine output 5.5 Penny: Blood pressure: 110/70 Cardiac output 4.9 Hemoglobin: 4.9 Urine output 4.9 Hanna: Blood

    asked on August 5, 2006
  1. Language Arts:

    Heart ❤️ emoji

    posted on April 22, 2019
  2. language arts

    Sinful is 100% right except don't copy the writing questions or you will get in trouble.

    posted on March 4, 2019
  3. Social Studies

    Nikki was right i got 100%

    posted on February 2, 2019
  4. Science

    Lun is right thanks 1. C. 2. D. 3. C. 4. A. 5. False. 100% correct

    posted on September 8, 2017
  5. math

    The answers are 1. A 2. B 3. D 4. A 5. B 100% Trust me

    posted on September 8, 2017
  6. P.E

    Lun is right just took the test and got 100% 1. B,C,D. 2. C. 3. A. 4. C. 5. A. 100% Trust me

    posted on September 8, 2017
  7. Language Arts 7

    Lilly Live is 100% correct i just did the quick check and the answers are C,b,b,b,b. Thank you.

    posted on September 8, 2017
  8. physics =)

    thanks! merry christmas

    posted on December 26, 2009
  9. Physics

    Ok, thanks but i don't understand b. I know you use the equation d = Vit +1/2 at^2 but to find the distance would you just calculate d = vit only.

    posted on December 26, 2009
  10. physics =)

    Ok, thanks a lot! Merry christmas and a happy almost new yr

    posted on December 26, 2009
  11. general science

    Reactants --> Products {True} products = reactants {True} If atoms cannot be destroyed then the mass of reactants must equal the mass of the products in a chemical reaction Some chemical and physical changes can reach equilibrium. At equilibrium the rate

    posted on December 24, 2009
  12. Chemistry

    Well, every substance has mass. You can try this out but weighing the vinegar before you add baking soda and weigh the vinegar after you add baking soda.

    posted on December 24, 2009
  13. physics =)

    Thanks a lot! I got F = 6311.11 N.

    posted on December 23, 2009