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Llana [10]
3 years ago
5

A 2 kg object is a distance of 10,000,000 m away from the center of Earth, which has a mass of nearly 6×1024 kg. What is the app

roximate gravitational field strength of Earth’s gravitational field at the location of the 10 kg object?
A2 N/kg

B 4 N/kg

C 10 N/kg

D The gravitational field strength is negligible and, therefore, approximately zero.
Physics
1 answer:
Gelneren [198K]3 years ago
7 0

Answer:

4 (N/kg) or B

Explanation:

An application of the equation for Newton’s law of universal gravitation can be used to determine the gravitational field strength at the 2 kg object’s location.

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The magnetic field strength at the north pole of a 2.0-cm-diameter, 8-cm-long Alnico magnet is 0.10 T. To produce the same field
Sonbull [250]

Answer:

The number of turns of the solenoid is 3536 turns

Explanation:

Given;

magnetic field of the solenoid, B = 0.1 T

current in the solenoid, I = 1.8 A

length of the solenoid, L = 8cm = 0.08m

The magnetic field near the center of the solenoid is given by;

B = μ₀nI

Where;

μ₀ is permeability of free space = 4π x 10⁻⁷ m/A

n is number of turns per length

I is the current in the coil

The number of turns per length is calculated as;

n = B / μ₀I

n = (0.1 ) / (4π x 10⁻⁷ x 1.8)

n = 44203.95 turns/m

The number of turns is calculated as;

N = nL

N = (44203.95)(0.08)

N = 3536 turns

Therefore, the number of turns of the solenoid is 3536 turns

7 0
4 years ago
Carole is very tired and makes coffee. why would newton say that she must use her hand to put up the cup
Marat540 [252]
<span>newton say that she must use her hand to put up the cup because the work is equal to force times it distance, that is in the same direction of the force applied. if carole used her hand to put up the cup, then he is not applying any work because the displacement is not in the same direction of the force</span>
5 0
3 years ago
Read 2 more answers
What causes reactants to gain potential energy?
Vinvika [58]
The energy of position, stored energy. e.g. exhibited by the position of electrons in electron shells relative to the atom's nucleus.
4 0
3 years ago
Which sentence is correct?
Alexeev081 [22]

Answer:

pretty sure its B if it isnt im so so sorry

Explanation:

7 0
3 years ago
One of the harmonics of a column of air in a tube that is open at one end and closed at the other has a frequency of 448 hz, and
Lelechka [254]
The general formula for the frequency of the nth-harmonic of the column of air in the tube is given by
f_n = n f_1
where f1 is the fundamental frequency.

In our problem, we have two harmonics, one of order n and the other one of order (n+1) (because it is the next higher harmonic), so their frequencies are
f_n = n f_1
f_{n+1} = (n+1) f_1
so their  difference is
f_{n+1} - f_n = (n+1) f_1 - n f_1 = (n+1-n) f_1 = f_1

So, the difference between the frequencies of the two harmonics is just the fundamental frequency of the column of air in the tube, which is:
f_1 = 576 Hz - 448 Hz = 128 Hz
7 0
4 years ago
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