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Scrat [10]
3 years ago
13

A student from Sidney, Australia compares the distance he obtained from the 1-st spark mark to the 25-th spark mark, with the si

milar result of a student who did the experiment in Gaithersburg, Maryland. Both students operated identical setups powered with 60 Hz AC, reported no missing spark marks, and achieved precision of their measurements in four significant figures. What difference in the results was found
Physics
1 answer:
Lady bird [3.3K]3 years ago
7 0

Answer:

The difference is obviously due tithe different gravitational constants as a result of variation in radius if the earth in Maryland and sydney

So

To calculate the difference

We use

distance s = 1/2 gt²

T = time difference between first spark and 25th spark will now be

24x (1/F)

= 24/60

= 0.4 sec

Therefore differnce in reading will be 0.5 x(9.8104 - 9.7967)x 0.42

= 0.002877 units

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kirza4 [7]
The answer is B. Acceleration.
6 0
3 years ago
What's true about the elliptical path that the planets follow around the sun? A. A line can be drawn from the planet to the sun
wariber [46]

Answer:

A. A line can be drawn from the planet to the sun that sweeps out equal areas in equal times

Explanation:

This is exactly what Kepler's second law of planetary motion states:

"the segment joining the sun with the center of each planet sweeps out equal areas in equal time"

This law basically tells how the speed of a planet orbiting the sun changes during its revolution. In fact, we have that:

- when a planet is closer to the Sun, it will orbit faster

- when a planet is farther from the Sun, it will orbit slower

5 0
3 years ago
Guys please help me on the rest of the numbers
wel

Answer:

C. 100

D.3

E. 33.3

Explanation:

C. Mechanical Advantage=Load / Effort

= 200N

--------

100N

Therefore,. = 100

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= 30cm/10cm

= 3

II. Efficiency= M.A / V.R

= 100/3

= 33.33

8 0
2 years ago
Describe what happens when your circuit is completed. Tap on one of the wires with your mouse. Describe what happens. Explain yo
klemol [59]

Answer: when a circuit is completed (it allows the flow of electrons which causes the light bulb to produce light).

Explanation:

A circuit is described as an electrical setup that is consists of a light bulb, a switch, a wire, a battery which is arranged to allow the flow of electric current. The major components of the electrical circuit includes:

--> The BATTERY which is the source of voltage to the circuit,

--> the WIRE which is the conductive path,

--> the LIGHT BULB which is the load that needs electrical power to operate and

--> the SWITCH which is the controller.

When a circuit is COMPLETED when electrons can flow from one end of a battery all the way around, through the wires, to the other end of the battery. Along its way, it will carry electrons to electrical objects that are connected to it like the light bulb and make it to produce light.

There are different types of electric circuit which are designed to create a conductive path of current or electricity. They include:

--> closed circuit

--> open circuit

--> short circuit

--> parallel circuit

--> series circuit.

6 0
2 years ago
What is the relationship between the strength of an
Anastaziya [24]

Answer:

As the number of turns in the coil increases, the strength  of the electromagnet increases.

Explanation:

When current flows through a coil the coil behaves as an electromagnet. The strength of electromagnet depend the amount of current, no of turns of coil and the core of coil.

B=μ₀ N I

μ₀ = permeability of the core

N = Number of turns of the coil

I = Current flowing through the coil

Increasing the current and number of coils increase the strength of electromagnet.

3 0
3 years ago
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