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Keith_Richards [23]
4 years ago
6

Which element is used as rat poison

Physics
2 answers:
Hoochie [10]4 years ago
4 0
Thallium is toxic to rats and also has negative effects on plants, such as leaf color changes and growth decline. The human body does absorb the substance effectively through the skin and lungs, with most thallium poisoning is due to the accidental intake of rat poison.
fredd [130]4 years ago
3 0
Im sure the answer is thallium
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A mass of 240 grams oscillates on a horizontal frictionless surface at a frequency of 2.5 Hz and with amplitude of 4.5 cm.
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Answer:

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Explanation:

Given;

mass, m = 240 g = 0.24 kg

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amplitude of the oscillation, A = 4.5 cm = 0.045 m

The  angular speed is calculated as;

ω = 2πf

ω = 2 x π x 2.5

ω = 15.71 rad/s

(a) The spring constant is calculated as;

\omega = \sqrt{\frac{k}{m} } \\\\\omega ^2 = \frac{k}{m} \\\\k = m\omega ^2\\\\where;\\\\k \ is \ the \ spring \ constant\\\\k = (0.24) \times (15.71)^2\\\\k = 59.23 \ N/m

(b) The total energy involved in the motion;

E = ¹/₂kA²

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E = 0.06 J

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3 years ago
Which equation correctly relates mechanical energy, thermal energy, and total energy when there is friction present in a system?
fenix001 [56]

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What average force is needed to accelerate a 9.20-gram pellet from rest to 125 m/s over a distance of 0.800 m along the barrel o
aleksklad [387]
Given:
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s = 0.0800 m, distance traveled
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(60 joules per second) x (5 seconds) = <em>300 Joules of energy</em>

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3 years ago
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