Answer:
1. Mass of the Earth is 5.97219 × 10^24 kg
2. Radius of the Earth is 6,371 km
3. Acceleration due to gravity on the surface of the Earth is 9.81 m/s^2
4. Acceleration due to gravity on the surface of the moon is 1.625 m/s^2
Explanation:
The mass and radius of Earth are <u>5.97219 × 10^24 kg</u> ME and <u>6,371 km</u> RE, respectively. The mass and radius of the Moon are approximately 186ME and 27RE, respectively. The acceleration due to gravity on the surface of Earth is <u>9.81 m/s^2</u> . The acceleration due to gravity on the surface of the Moon is most nearly <u>1.625 m/s^2</u>
Answer:
We can't actually see the force of gravity BUT we can see its effect.
Answer: no it shouldn't be
Explanation:
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:
B= 55.6×10^(-7) Tesla
Explanation:
B= μoI/(2πr)
B: magnetic field strength
μo: permeability of free space and is equal to 4π×10^(-7) T.m/A
r: distance from the wire
I : current in the wire
B= (4π×10^(-7)×125)/(2π×4.5)
B= 55.6×10^(-7) Tesla