Answer: it suggests that the positive charge of the gold atom is concentrate at a very small location called the nucleus. The alpha Particles that passes through the gold atom undisturbed must have passed through the sides that is distant from the nucleus
Explanation:
ZnSO₄ + 3NH₃ = [Zn(NH₃)₃]SO₄ threeamminezinc sulfate
Zn²⁺ + 3NH₃ = [Zn(NH₃)₃]²⁺ threeamminezinc cation
C. (-2,-2) is the answer.
<u>Explanation:</u>
When we reflect a point (x, y) across the y-axis, after the reflection, the y-coordinate tends to be the same, however the x-coordinate is changed into its opposite sign.
Here U(2,-2) is reflected across the y-axis then,
the y-coordinate -2 remains the same and the x-coordinate is transformed into its opposite that is the sign of the x-coordinate will be changed as -2.
So the new coordinates of U after reflection will be (-2,-2).
Answer:
EPA
Explanation:
In the United States of America, the agency which was established by US Congress and saddled with the responsibility of overseeing all aspects of pollution, environmental clean up, pesticide use, contamination, and hazardous waste spills is the Environmental Protection Agency (EPA). Also, EPA research solutions, policy development, and enforcement of regulations through the resource Conservation and Recovery Act.
In conclusion, the Environmental Protection Agency (EPA) regulates water quality, air pollution, and solid waste to protect Americans from significant risks to human health and the environment.
Thermal energy from friction. ... All the work done by the friction force results in a transfer of energy into thermal energy of the box-floor system. This thermal energy flows as heat within the box and floor, ultimately raising the temperature of both of these objects. Figure 1: Man pushing a box opposed by friction.
