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Posts by LK

Total # Posts: 38

Language Arts
all the responses saying duck is right were written within minutes of eachother and of duck posting it. Theyre obviously trying to trick you dont go with duck

history
is anonymous really right?

Math 8th Grade
C C D B B

SS
ummm could i just get the answers?

Social Studies
i reallllly need the answer

L.A.
roman is actually right didnt think they were but got 100

Math
1. D 2. C 3. D 4. A 5. C 6. D 7. B 8. C 9. A 10. B

Math
what about the other 5?

help
false

chemistry
who created the mcilvaine buffer system?

precal
how do you use demoivre theorem for (-1+i)^7

precal
yes

precal
demoivre theorem (2-2i)^8

precal
sqrt2/2^2

precal
demoivre theorem (2sqrt3+2i)^5 r=(2sqrt3+2)^2

ap chemistry
how do you find the mass of dehydrated sample? mass of crucible and cover- 30.95 g mass of hydrated sample, crucible, and cover- 32.75 g mass of hydrated sample-? mass of dehydrated sample, crucible and cover- 1st weighing-32.47 g mass of dehydrated sample, crucible, and cover...

math
In a random sample of 75 individuals, it was found that 52 of them prefer coffee to tea. What is the margin of error for the true proportion of all individuals who prefer coffee?

math
has a vertex of (0,2) and points (1,8)find a,b,c

statistics
$12,553.65

chemistry
hghbj

Chemistry
lk

PHYSICS(URGENT)
A particle has a mass of 5kg. It is held at a height of 3 metres above the ground. Find: a.Its potential energy b.It’s kinetic energy when is hits the ground c.The speed with which the particle hits the ground

PHYSICS(URGENT)
A body of mass 0.5 kg is thrown vertically upwards with a speed of 10 m/s. Determine: a.The initial kinetic energy of the body b.The gain in potential energy when the body has reached its maximum height c.The maximum height reached above the starting position

PHYSICS
A car is moving at a constant velocity of 5.5m/s. How much net force is required to raise its velocity to 14 m/s in 30 seconds? Suppose the car has a mass of 150kg.

PHYSICS
A car is moving at a constant velocity of 5.5m/s. How much net force is required to raise its velocity to 14 m/s in 30 seconds? Suppose the car has a mass of 150kg.

PHYSICS
A car is moving at a constant velocity of 5.5m/s. How much net force is required to raise its velocity to 14 m/s in 30 seconds? Suppose the car has a mass of 150kg.

PHYSICS
If your mass on earth is 70 kg what will be your mass on the moon considering that the gravitational field strength on the moon (g) is 1/6 of that on the earth. (g on earth = 10N/kg)

physics
A car accelerates from rest at a steady rate of 1 ms-2. Calculate: (a) the time taken to reach 15 ms-1 (b) the distance travelled during this time (c) the velocity of the car when it was 100 m from the start point

physics
A car accelerates from rest at a steady rate of 1 ms-2. Calculate: (a) the time taken to reach 15 ms-1 (b) the distance travelled during this time (c) the velocity of the car when it was 100 m from the start point

geometry
Prove line segment BP is 2/3 of line segment BD in triangle ABC

chemistry
ij

Chem
1, 3, 4

geometry
856

Physics
If a ball has a constant acceleration of 10m/s^2, how fast will the ball be rolling after 4 seconds? Would you multiply acceleration times time? So 10 x 4... or would you use the equation d=1/2gt^2?

Physics
A 3.8 kg fish swimming 1.3 m/s swallows an absent minded 1.4 kg fish swimming toward it at a velocity that brings both fish to a halt immediately after lunch. What is the velocity v of the smaller fish before lunch?

Physics
A railroad diesel engine weighs 3.6 times as much as a freightcar. If the diesel engine coasts at 4.3 km/h into a freightcar that is initially at rest, how fast do the two coast after they couple together? )

microeconmics
ljljl

Physics
@kelly..may i know why have to l-l cos delta?

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