Which of the following machines does NOT apply the lever principle?
claw hammer
wheel barrow
single moving pulley
sugartongs
nutcrackers
Correct answer is C
No explanation has been provided for this answer.
10√2ms-1
10ms-1
100ms-1
5√2ms-1
200ms-1
Correct answer is A
Using, V2 = U2 + 2gs
V2 = 02 + (2 x 10 x 10)
V = 10√2ms-1
centrifugal
rotational
reaction
centripetal
tractional
Correct answer is D
No explanation has been provided for this answer.
62.5A, 4.0\(\Omega\)
16.0A, 62.5\(\Omega\)
62.5A, 16.0\(\Omega\)
4.0A, 62.5\(\Omega\)
4.0A, 250\(\Omega\)
Correct answer is D
R = \(\frac{V^2}{R}\) = IV ; R = \(\frac{V^2}{P}\) and I = \(\frac{P}{V}\)
R = \(\frac{(250)^2}{100}\) and I = R = \(\frac{1000}{250}\)
R = 62.5\(\Omega\) and I = 4A
1,750m
3,500m
1,400m
2,800m
2,100m
Correct answer is A
No explanation has been provided for this answer.