# Williams

Most popular questions and responses by Williams
1. ## Physics

A lead bullet of mass 50 grams is fired with a velocity of 200m/s into a lead block of mass 950 grams. Given that the lead block can move freely, calculate the kinetic energy after impact and the loss of energy.

2. ## Physics

A man 2m tall whose eye level is 1.84m above the ground looks at his image in a vertical mirror. If the man is to be above to see the whole of his body, determine the minimum length of the vertical mirror

3. ## physics

a relative density of weighs 30g when empty,70g when filled with water,and 100g when filled with a liquid, find the; a. relative density of the liquid b. density of the liquid

4. ## Art

Christo and Jeanne-Claude's "Gates", in New York's Central Park was a temporary installation, being up, and on view for only a few weeks. There is another temporary work installed in New York now. This one will be on view for a few Months. Can anybody find

5. ## math

A welder decides to make a pyramid shaped paperweight out of flat steel. the height of the pyamid is to be 3.5in and the square base has edges of 2.0in. how much sheet metal, in square inches, will he need to form the shell? to give weight, he is going to

6. ## Psychology

Brief summary and example of these Cognitive Learning Strategies/types please? I don't have my book yet and I need these ASAP!!!!! Ex: Three-stage information processing model is which includes a short definition or description of (a) sensory-register, (b)

7. ## science(physics)

a ball of mass 8kg falls from rest from a height of 100m negleting a resistant calculate its kinetic energy after falling a distance of 30m (take gravity as 10m/s?

8. ## Uniport ( physis)

A ball is thrown vertically upward with a speed v from a point h metres above the ground. What is the expression according to the time taken for the ball to strike the ground

9. ## math

how long will it take of a sum of money invested at 80% simple interest the original sum. then solve it.

2x^2*4x=0

11. ## math

A woman was tired of being asked how old she was, so she composed the following riddle Four times two and nine times three, add that to my age and it will be, as much two tens and four, plus twice my age minus a score.

Coulomb law

13. ## physics

what is the physics behind the process of administering the following 1. measurement of blood pressure using sphygmomanometer 2.giving injections 3.administering intravenous infusion 4.giving oxygen in the ward and operating theater 5. administering blood

14. ## physics

How is pressure applied in the following areas 1. Measurement of blood pressure using spygmomanometer. 2.Giving injections 3.Administering intravenous transfusion 4.Giving oxygen in the ward and operation theater 5.Administering blood transfusion 6.Sucking

15. ## physics

thanks for the answer but can i get more explanation

16. ## Math.stat help :(

Consider the following hypothesis statement using alpha = .05, and data from two independent samples: Ho: µ1 - µ2 = 0 Ha: µ1 - µ2 not equal to 0 X1 = 237, X2 = 218 ¬1 = 54, ¬2 = 63 n1 = 42, n2 = 35 a) Calculate the appropriate test statistic and

1. ## Physics

thanks for the answer but can i get more explanation

posted on February 5, 2014