Answer:
Answered
Explanation:
By the law of conservation of the momentum The car-bug system moment will remain the same before and after the collision. And since the mass of the car is much higher than the bug, the change in velocity of the car will be negligible as compared to the change in velocity of the bug and hence the change in momentum of the bug will be very large and change in momentum of the car will be negligible.
Answer:
the gravitational force between the satellite and the planet is 32.4 * 10³N
Explanation:
It is given that,
Mass of the satellite, m = 6500 kg
Speed of the satellite, v = 6.7 × 10³ m/s
distance to the center of the planet = 9 × 10⁶m
Let F is the magnitude of the gravitational force exerted on the satellite by the planet. The centripetal force is equal to the gravitational force. It is equal to :
= 32.4 * 10³N
the gravitational force between the satellite and the planet is 32.4 * 10³N
Answer:
Diodes helps in maintaining proper voltage levels
Explanation:
Electronic components such as diodes allow current to flow in forward biasing.
Under reverse biasing diode does not allow current to flow but a negligible amount of current does flow.
Forward biasing allow current to flow after crossing potential barrier .
When crossing this potential barrier we can observe an increase in current but the voltage does not go higher than . Even with the high input voltage.
Hence, diode maintains proper voltage in circuits.
Answer:
I know 1, that is in the case of a burning of a candle.
Explanation:
Answer:
3.75 seconds
Explanation:
Given:
y₀ = 2.00 m
y = 0 m
v₀ᵧ = 20.0 sin 60.0°
aᵧ = -9.8 m/s²
Find: t
y = y₀ + v₀ᵧ t + ½ aᵧ t²
0 = 2.00 + (20.0 sin 60.0°) t + ½ (-9.8) t²
0 = 2 + 10√3 t − 4.9 t²
Solve with quadratic method:
t = [ -10√3 ± √(300 − 4(-4.9)(2)) ] / -9.8
t = (-10√3 ± √378.4) / -9.8
t ≈ -0.218, 3.75
Since t > 0, the ball lands after approximately 3.75 seconds.