-20 m/s 20 m
20 mld
604
45
30
1 kg
1 kg
1 kg
D
E
F
y - 23.1 m's
- 40 m's
- 28.3 m's
- 20 ms
, - 20 m
- 20 m
450
30
2 kg
2 kg
2 ke
Which of the following statements are true about the situations depicted in the figures above?
The highest vertical helght reached is in pictures B and E
OA: True B: False
At the top, the vertical velocity of the cannonball is zero
A: True OB: False
The longest horizontal distance traveled is in pictures B and E
A: True B: False
The time in the air
is greater in A and D than it is in C and F
A: True OB: False
The flight of the ball is identical in pictures C and F, Independent of the fact that the masses are dife
OA: True B: False

In a vernier instrument the main scale is in 1/2 mm divisions .vernier is made by redividing 19 such divisions into 20 equal parts. calculate the least count of the instrument.

At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.

An isolated conducting spherical shell carries a positive charge. part a which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? electric potential inside the shell is constant and outside the shell is changing as 1/r2 both the electric potential and the electric field does change with r inside and outside the spherical shell electric potential inside and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is equal to zero electric field inside and outside the shell is constant (does not change with the position r), but is not equal to zero electric field inside and outside the shell is changing as 1/r (where r is the distance from the center of the sphere) electric field inside is equal to zero and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is changing as 1/r electric field inside and outside the shell is changing as 1/r2 electric field inside is equal to zero and outside the shell is changing as 1/r2 electric field inside and outside the shell is zero electric field inside is constant and outside the shell is changing as 1/r