The following are the answers:
1. B.<span>reduces pesticide residues.
> It reduces pesticide residues up to 50%. It also does not increase the amount of fat in beef because, corn, like wheat and grain, are high starch or high energy food, which would mean that, it reduces the time to fatten the cattle.
2. </span>B. Antimicrobial drugs should be limited to situations where the use of drugs is necessary for animal health.
> Improvement in management and animal health care have largely improved safety of food and as an outcome, decreased the need for antimicrobial in the system of food production.
3. A. 7
>A meta-analysis of 2012 identified that pesticide residues were found in 7% of organic produce samples, 38% conventional produce samples.<span>
4. </span><span>D. Raw shellfish from polluted water
> One way of getting Hepatitis A is eating contaminated food.
5. </span><span>B. Toxoplasma gondii
> Sources of infection of T.gondii is </span><span>contact with contaminated cat feces.
6. </span><span>Methyl mercury
7. </span><span>B. botulism infection.
> mainly caused by </span><span>botulinum toxin.
8. </span><span>D. E. coli
</span>
Answer: 4 kg
Explanation:
Ke=1/2MV^2
plug in the kinectic energy and solve for M
50=1/2(M) (5^2)
M= 4
The horizontal movement of the rocket is 11m/s, with an acceleration of 1.6m/s². The vertical movement will be downward, with an initial velocity of zero (it was shot horizontally) and a negative acceleration of g (-9.8m/s²)
To see how far the rocket traveled before hitting the ground, let's first figure out the time t at which the rocket hit the ground:
The formula for distance is d= vt + (1/2)at² ,
Where v=initial velocity, d=distance traveled, a=acceleration, and t=time
We want to find how long it took to travel 40 meters (height above the ground), given an initial velocity of 0 and negative acceleration of 9.8
Plugging into the equation:
40 = 0(t) + (1/2) (9.8) (t²) Multiply both sides by (2/9.8)
8.16 = t² Square root of both sides
t= 2.85
The rocket traveled for 2.85 seconds before hitting the ground. Plug this number into our distance formula to find horizontal distance
d= vt + (1/2)at²
d = 11 (2.85) + (1/2) (1.6) (2.85²)
Remember that initial horizonal velocity is 11m/s and horizontal acceleration is 1.6m/s²
Simplify:
d= 31.35 + .8 * 8.16
d = 37.87
The object traveled 37.87 meters before hitting the ground.
Answer:
D . 1.47 x 10⁻² Ω-m
Explanation:
L = length of the cylindrical resistor = 2 m
d = diameter = 0.1 m
A = Area of cross-section of the resistor = (0.25) d² = (0.25) (3.14) (0.1)² = 0.785 x 10⁻² m²
V = battery Voltage = 12 volts
= current flowing through the resistor = 3.2 A
R = resistance of the resistor
Resistance of the resistor is given as
R = 3.75 Ω
= resistivity
Resistance is also given as
= 1.47 x 10⁻² Ω-m