The radius of the garden hose is
, so its cross-sectional area is
The amount of water (in
) that comes out from the hose in one second is given by the product between the speed of the water and the cross-sectional area of the hose:
The time needed to fill the pool is equal to the volume of the pool divided by the amount of water that comes out every second:
E) Biotechnology use can lead to an increase in soil erosion and pollution runoff through decreased pesticide use.
Explanation:
Biotechnology use cannot lead to an increase in soil erosion and pollution runoff through decreased pesticide use.
There is no relationship between biotechnology use and increase soil erosion and pollution run off.
Biotechnology involves the application of technology based on living things.
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Influence of science on society.
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Answer:
F = 11046 N
Explanation:
given,
mass of the baseball (m)= 145 g = 0.145 Kg
horizontal speed(u) = -36 m/s
ball hit is straight back(v) = 47.8 m/s
time of contact = ?
using formula of impulse
Impulse = change in momentum
I = m v - m u
I = 0.145 x (47.8 - (-36))
I = 0.145 x (83.8)
I = 12.151 kg.m/s
we also know
I = F x t
now,
F x t = 12.151 kg.m/s
F x 1.1 ms = 12.151
F = 11046 N
Answer:the H2O and O2 produced have the same mass as the original H2O2
Answer : Kinetic energy is motion of waves, electrons, atoms, molecules, substances, and objects. Potential energy is stored energy and the energy of position gravitational energy. Applying a force can make some of the electrons move. Electrical charges moving through a wire is called electricity.
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