3 years ago

Calculate the inhomogeneity of a 1.5 t magnet

Physics

1 answer:

Ludmilka [50]3 years ago

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Vladimir [108]

Answer:

C. Resist change in motion.

Explanation:

Inertia: the tendency of an object to resist a change in motion unless an outside force acts on the object.

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2 years ago

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The mass of an object is 84 kg. Find its weight on the Earth and the Moon.

lozanna [386]

Answer:

We would take the mass given, 80 kg, and multiply it times the acceleration of Earth's downward pull on that mass, 9.8 m/s/s. So the weight on Earth is 784 newtons. So the weight of the same 80 kg mass on the moon is 133.28 N.

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3 years ago

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A top fuel drag racer reaches a maximum speed of 330 mph at the end of the 1/4-mile (402 m) racetrack. Part A - Assuming that th

Aloiza [94]

Answer:

a. 27 m/s2

b. 2.75:1

Explanation:

Since it is assumed that the race car starts from rest, initial velocity, u = 0 m/s

At the end of 402 m, distance, s = 402 m; and

Final velocity, v = 330 m/h

Converting this to m/s,

$v=\dfrac{330\times1609}{3600}=147.5$ m/s

Using the equation of motion

$v^2=u^2+2as$

$a=\dfrac{v^2-u^2}{2s}$

$a=\dfrac{147.5^2-0^2}{2\times402}=27$

If acceleration due to gravity is taken as 9.8 m/s2, then

$a:g=27:9.8=2.75:1$

4 0

3 years ago

Identify the procedure to determine a formula for self-inductance, or inductance for short. Using the formula derived in the tex

OlgaM077 [116]

Answer:

L = 0.109 H

Explanation:

Given that,

Number of loops in the solenoid, N = 1500

Radius of the wire, r = 4 cm = 0.04 m

Length of the rod, l = 13 cm = 0.13 m

To find,

Self inductance in the solenoid

Solution,

The expression for the self inductance of the solenoid is given by :

$L=\dfrac{\mu_o N^2 A}{l}$

$L=\dfrac{4\pi \times 10^{-7}\times (1500)^2\times \pi (0.04)^2}{0.13}$

L = 0.109 H

So, the self inductance of the solenoid is 0.109 henries.

3 0

3 years ago

Assuming 70% of Earth's surface is covered in water at an average depth of 2.5 mi, estimate the mass of the water on Earth in Ki

saw5 [17]

This is an excellent question that i do not have the answer to.

7 0

2 years ago