Answer:
The value of spring constant for each spring of the suspension system of a car K = 343.35 
Explanation:
Total force on the springs = weight of the four passengers
⇒ F = 4 × 70 × 9.81
⇒ F = 2746.8 N
In the suspension system of the car the four springs are connected in parallel. So Equivalent spring constant is given by,
⇒ 
= 4 K -------- ( 1 )
Depression in the spring Δx = 2 cm
Now the force on the spring is given by
F = × Δx
⇒ = 
⇒ = 1373.4
Now the spring constant for each spring = 
⇒ K = 
⇒ K = 343.35
This is the value of spring constant for each spring of the suspension system of a car.
Headphones, refrigerator magnets, and compasses
Hope that was helpful.
It would be D I believe! Depending on the angle of the mirror and distance positioned!
A typical wheel used on a roller coaster is constructed by taking an aluminum hub and bonding a polyurethane tire to the hub's outside diameter. This entire “wheel assembly” is then connected to the axle through a bearing.
Answer:
(a) The length of the pendulum on Earth is 36.8cm
(b) The length of the pendulum on Mars is 13.5cm
(c) Mass suspended from the spring on Earth is 0.37kg
(d) Mass suspended from the spring on Mars is 0.36kg
Explanation:
Period = 1.2s, free fall acceleration on Earth = 9.8m/s^2, free fall acceleration on Mars = 3.7m/s^2
( a) Length of pendulum on Earth = [( period ÷ 2π)^2] × acceleration = (1.2 ÷ 2×3.142)^2 × 9.8 = 0.0365×9.8 = 0.358m = 35.8cm
(b) Length of the pendulum on Mars = (1.2÷2×3.142)^2 × 3.7 = 0.0365×3.7 = 0.135cm = 13.5m
(c) Mass suspended from the spring on Earth = (force constant×length in meter) ÷ acceleration = (10×0.358) ÷ 9.8 = 0.37kg
(d) Mass suspended from the spring on Mars = (10×0.135)÷3.7 = 0.36kg
