Answer:
40 kilo grammes ...............
Answer:
exoplanets is any planet beyond our solar system.
Answer:
s₁ = 4.67 m from car A
Explanation:
Since, the cars are moving at a constant speed. Hence, we will apply the equation for uniform motion here:
s = vt
where,
s = distance covered
v = velocity
t = time taken
For Car A:
s₁ = (1.4 m/s)t
For Car B:
s₂ = (2.2 m/s)t
Because the time will be same at the collision. At collision the distance covered by Car A and Car B must be 12 m altogether. Hence:
s₁ + s₂ = 12 m
using values:
(1.4 m/s)t + (2.2 m/s)t = 12 m
t = 12 m/3.6 m/s
t = 3.333 s
Substitute this in the equation of s₁:
s₁ = (1.4 m/s)(3.33 s)
<u>s₁ = 4.67 m from car A</u>
Answer:
23.52 N
Explanation:
Using the Hydraulic Press formula
since the the liquid in an hydraulic press cannot be compressed
P₁ ( pressure at the piston 1) = P₂ ( pressure at piston 2)
P₁ = F₁ / A₁ where F₁ represent the weight of the car and F₂ represent the force applied at the 1 cm end and A₁ and A₂ are the area of the piston respectively
P₂ = F₂ / A₂
F₁ / A₁ = F₂ / A₂
(F₁/A₁) × A₂ = F₂
F₁ = 1500 kg × 9.8 m/s² = 14700 N
A₁ = πR² = π ( 0.25)² where R = 25 cm = 0.25 m for the larger piston
A₂ = πr² = π ( 0.01)² where r = 1 cm = 0.01 m
(F₁/A₁) × A₂ = F₂
F₂ = ( 14700 N / ( π 0.0625)) ×π (0.01)² = 23.52 N
