Explanation:
For projectile motion, use constant acceleration equation:
Δx = v₀ t + ½ at²
where Δx is the displacement,
v₀ is the initial velocity,
a is the acceleration,
and t is time.
For the first object:
Δx = 60 t + ½ (-10) t²
Δx = 60 t − 5 t²
For the second object:
Δx = 0 (t−10) + ½ (-10) (t−10)²
Δx = -5 (t−10)²
When they meet, they have the same displacement, so:
60 t − 5 t² = -5 (t−10)²
60 t − 5 t² = -5 (t² − 20t + 100)
60 t − 5 t² = -5 t² + 100 t − 500
60 t = 100 t − 500
40 t = 500
t = 12.5
Plug into either of the original equations to find the displacement.
Δx = -5 (t−10)²
Δx = -5 (12.5−10)²
Δx = -31.25
The distance from the top of the cliff to the point where the objects meet is 31.25 meters.
Answer:
When focused light is projected onto the retina, it stimulates the rods and cones. The retina then sends nerve signals are sent through the back of the eye to the optic nerve. The optic nerve carries these signals to the brain, which interprets them as visual images.
Explanation:
Hope it will help u
Explanation:
it's true genes contain the DNA
Assuming you are supposed to write each conversion in scientific notation:
(2) 1 m = 100 cm, so
(67 cm) × (1/100 m/cm) = 67/100 m = 0.67 m = 6.7 × 10 ⁻¹ m
(3) 1 km = 1,000 m, so
(1.2 km) × (1000 m/km) = 1200 m = 1.2 × 10³ m
(4) 1 m = 1,000 mm = 10³ mm, so
(6.2 × 10 ⁻³ m) × (10³ mm/m) = 6.2 mm
(5) 1 m = 1,000,000,000 nm = 10⁹ nm, so
(4.05 × 10³ nm) × (1/10⁹ m/nm) = 4.05 × 10 ⁻⁶ m
(6) 1 g = 1,000,000 µg = 10⁶ µg, so
(3200 µg) × (1/10⁶ g/µg) = 3200 × 10 ⁻⁶ g = 3.2 × 10 ⁻³ g
