A 1.4x103 V/m electric field creates a 3.5x10¹7 elec/s current in a 1.2-mm-diameter aluminum

Q: 3. A sample of the radioactive isotope cadmium-109 is initially 220.0 grams. Use Appendix A from the…

A: (a). Cadmium has atomic number Z= 48 and this cadmium isotope has atomic mass A 109. Atomic mass…

Q: Give one example (in detail) as to how both positive and negative numbers are being used in science.

A: One example of how both positive and negative numbers are used in science is in the study of…

Q: Question 1: What is the null hypothesis in the test we have just performed? Would we accept the null…

A: Null HypothesisThe null hypothesis (H0​) in the chi-square test for independence is that there is no…

Q: When asked about his thoughts on a new scientific hypothesis, Wolfgang Pauli once said: "That's not…

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Q: Enter the following expression in the answer box below: 2gλ3m−−−−√2gλ3m, where λλ is the lowercase…

A: The required expression to fill in the answer box is written below.

Q: Hello, It said my larger value is incorrect by 10%, I am redoing the math but I have no luck.

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Q: How many nanometers are in a 5km distance?

A: Given: The distance is 5 km.

Q: I still do not understand. Could you please show by explicitly using the formulas? Thank you.

A:

Q: The ratio of circumference to diameter for all circles is

A: Write the expression of the circumference of a circle in terms of its radius as: The formula for…

Q: Could you please elaborate on the solution?

A: Mass of the car, m=1000 kg Initial speed of the car, u=72 km/h Final speed of the car, v=0…

Q: You are standing a distance x from a building with height y. If the straight line distance between…

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Q: In astronomy, distances are often expressed in light-years. One light-year is the distance traveled…

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Q: A tennis ball of mass 0.065 kg and speed of 28 m/s strikes a wall at 40 degrees angle and rebounds…

A: Impulse on the ball =change in momentum of the ball

Q: nd the opening (2 mm from the light source), the illuminated area covers 4 m2m2. How many square…

A: Given:- A small light source located 1 m in front of a 1-m2  opening illuminates a wall behind.  If…

Q: The doctor finally figures out wha is wrong with you and prescribes a medicine that will return you…

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Q: A proton, traveling upwards at 5x10* m/s, enters a magnetic field of 0.65 T pointing out of the…

A: Answer               5.2*10^-15 N

Q: The radius of the earth is 6400 Km and the height of a person is 1.7m, how high can you stand to see…

A: Given: Radius of earth, RE=6400 km Height of person, 1.7m To Find: Height to see the Horizon

Q: Describe how the power of ten rule works in converting 1.71 kg to miligrams? I know that in a…

A: Given:1.71 kg

Q: Answer in terms of calculus. Look at pics for question.

A: Given Information: The location of the charge "q" = (0, y) The point where the electric field is…

Q: A square with an edge 8 cm long has an area of (8cm)(8cm) = 64 cm2. What is this area in square…

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Q: n day 5 of our trip we drove from Pompei to Vicenza in the north of Italy (440 miles, about 6 hours…

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Q: How would you round 0.0189787745 to 4 significant figures?

A: Required: The value 0.0189787745 in 4 significant figures

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.