I'm familiar with all these equations.
The problem is actually very easy to visualize and understand, but the numerical work can't be done without the proper equations
Vf=Vo + gt where Vf is final velocity and Vo is 0 (at the top of the projectile curve) although this also isn't very useful...
Homework Statement
An object is thrown downward with an initial speed of 19 m/s from a height of 85 m above the ground. At the same instant, a second object is propelled vertically from ground level with a speed of 54 m/s .
The acceleration of gravity is 9.8 m/s^2 .
At what height...
thanks that's what i got. this problem was extremely simple i was just exhausted and tried skipping steps foolishly.
guess its time to close this thread
Yes that's what i meant. I just redid my solution. Several figures off lol. But please, attempt the problem so i can check my answer
might i add that the question wants the answer in sigfigs
also about the conversions. let's just find the answer in cubic feet first. the conversion can be done...
Homework Statement
The base of a pyramid covers an area of 20.4 acres (1 acre = 43, 560 ft^2) and has a
height of 69 ft.
Find the volume of this pyramid in cubic meters. Answer in units of m3.
Homework Equations
V of Pyramid= (1/3)bh
where 'b' is 43,560 ft^2
The Attempt at...
Oh yeah thanks.
I thought that i had to add the radii because the diagram on the page made it seem as if the outer radius was that of only the thickness of the pipe.
Homework Statement
A piece of pipe has an outer radius of 4.5cm, an inner radius of 2.8cm and length of 36cm
The density of the pipe is 7.8 g/cm^3
What is the mass of this pipe? Answer is in unites of kg.
Homework Equations
Density=mass/volume
Mass= (density)(volume)
Volume=...