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s2008m [1.1K]
4 years ago
9

A typical raindrop is much more massive than a mosquito and falling much faster than a mosquito flies. How does a mos quito surv

ive the impact? Recent research has found that the collision of a falling raindrop with a mosquito is a perfectly inelastic collision. That is
Physics
1 answer:
Vesnalui [34]4 years ago
7 0

Answer:

Explanation:

Momentum is conserved in an inelastic collision. In a completely-inelastic collision, both objects have a common final velocity.  Once the relative speed between the mosquito and the raindrop is zero, the mosquito is able to detach from the drop and escape

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A chart showing the type of reproduction that occurs in several organisms is shown below. Organism Type of Reproduction Bacteria
quester [9]

Answer:

C

Explanation:

7 0
3 years ago
Read 2 more answers
The electric output of a power plant is 716 MW. Cooling water is the main way heat from the powerplant is rejected, and it flows
Stels [109]

Answer:

(a) 83475 MW

(b) 85.8 %

Explanation:

Output power = 716 MW = 716 x 10^6 W

Amount of water flows, V = 1.35 x 10^8 L = 1.35 x 10^8 x 10^-3 m^3

mass of water, m = Volume  x density = 1.35 x 10^8 x 10^-3 x 1000

                                                               = 1.35 x 10^8 kg

Time, t = 1 hr = 3600 second

T1 = 25.4° C, T2 = 30.7° C

Specific heat of water, c = 4200 J/kg°C

(a) Total energy, Q = m x c x ΔT

Q = 1.35 x 10^8 x 4200 x (30.7 - 25.4) = 3 x 10^12 J

Power = Energy / time

Power input = P = \frac{3 \times 10^{12}}{3600}=8.35 \times 10^{8}W

Power input = 83475 MW

(b) The efficiency of the plant is defined as the ratio of output power to the input power.

\eta =\frac{Power output}{Power input}

\eta =\frac{716}{83475}=0.858

Thus, the efficiency is 85.8 %.

7 0
3 years ago
Please help with last equation i don't understand at all!!!
GalinKa [24]
What equation?
please comment on this and type it in
5 0
3 years ago
What is molecular magnet
vova2212 [387]

Answer:

an unconventional magnetic material that consists of organic molecules, coordination compounds, or combinations. Single-molecule magnet, a single molecule that exhibits magnetic hysteresis of itself, without collective long-range ordering.

Explanation:

5 0
4 years ago
Hubble's law states that
Maslowich

Answer:

Option (B)

Explanation:

According to Hubble's law, the distance from the earth to the distant galaxies is directly proportional to their recessional velocity (redshift). This means that the more is the distance between the earth and a galaxy, the faster the galaxy is moving away from the earth.

Recessional velocity normally refers to the speed or velocity at which any astronomical body such as a planet, asteroid, star or galaxy moves away from a  reference point, such as from earth.

Thus, the correct answer is option (B).

5 0
4 years ago
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