home run that was estimated to have
landed 180 metres from the home plate and to have reached a
height of 21.3 metres. Calculate the initial velocity of the
ball.
u^2=v^2-2as
t=?
u=?
v=0
s=180
a=g= -9.8
u^2= √0^2-2x-9.8x180
u= 59.9 m/s
am I using the right equation for...
Homework Statement
The direction of the ray of light enters equilateral 60° glass prism normal to the surface as shown in attached image
refracted index of the prism material for the violet light is 1.651
(a) What is the angle of incidence on the surface A-B?
(b) Does total internal...
its suppose to be
1/v=1/f-1/u (trying to find image distance)
1/v=1/-10 -1/50
v= -9.4cm
then with part b i think i use the magnification and multiply it with the height of object to get image size
0.06 x 12cm= 0.75cm
Shiny lawn spheres placed on pedestals are convex mirrors.
One such sphere has a diameter of 40 cm. A
12 cm long robin sits in a tree 1.5 m from the sphere.
(a) Where is the image of the robin?
(b) How long is the image?
f=R/2 to find radius
1/v=1/f-1/u to find image distance (the mirror...
A ray of violet light enters a 60° glass prism at an angle of incidence of 40°. If the refractive
index of the prism material for violet light is 1.651
calculate:
(a) The angle of refraction for the air-glass boundary
(b) The critical angle for violet leaving the glass
(c) The...