Which are true for a photon. (Choose 3)
1 answer:
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Answer:
a)5mm
b)3.3%
Explanation:
first note down the what's given
Area=
Mass of the runner==70kg
Fmax= 8 F (since tendon can stretch 8 times of runner's weight)
= 8 g=8 x 70 x 9.8=> 5488N
L=15cm=> 0.15m
a)/AΔL
YAΔL=Fmax. L
ΔL=
ΔL= => 5mm
b) L=15cm= 150mm
Fractional change can be determined by,
(ΔL/L) *100
=
=3.33%
Answer:
a) kinetic energy = 130.2j
b) angular velocity when kinetic energy is doubled = 21.2rad/s
