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3 years ago

Which unit do astronomers use for angular measurement?

Physics

1 answer:

Alex787 [66]3 years ago

8 0

C and D are units of length or distance.
A is a measured angle.
B is a unit of angular measurement.

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KiRa [710]

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momentum in a body can be calculated using

Momentum=Mass×Velosity 

ie(p=m×v)

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3 years ago

A towrope is used to pull a 1750-kg car, giving it an acceleration of +1.35 m/s ^2. What force does the rope exert?

Klio2033 [76]

Newton's 2nd law of motion:

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   = 2,362.5 Newtons

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3 years ago

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Answer:

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3 years ago

a baby carriage is sitting at the top of a hill that is 21m high. The carriage with the baby weighs 12kg. The carriage has _____

Ket [755]

Height=h=21m
Mass=m=12kg

$\\ \rm\longmapsto P.E=mgh$

$\\ \rm\longmapsto P.E=12(10)(21)$

$\\ \rm\longmapsto P.E=120(21)$

$\\ \rm\longmapsto P.E=2520J$

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3 years ago

A flat, 181 ‑turn, current‑carrying loop is immersed in a uniform magnetic field. The area of the loop is 4.97 cm2 and the angle

Sidana [21]

Answer:

B = 0.135T

Explanation:

To find the magnitude of the magnetic field you use the following formula, for the torque produced by a magnetic field B in a loop:

$\tau=NIABsin\theta$ (1)

τ: torque = 1.51*10^-5 Nm

I: current = 2.47mA = 2.47*10^-3 A

B: magnitude of the magnetic field

A: area of the loop = 4.97cm^2 = 4.97(10^-2m)^2=4.97*10^-4m^2

N: turns = 181

θ: angle between B and the magnetic dipole (same as the direction of the normal to the plane)

You replace the values of the parameters in (1). Furthermore you do B the subject of the formula:

$B=\frac{\tau}{NIAsin\tetha}=\frac{1.51*10^{-5}Nm}{(181)(2.47*10^{-3}A)(4.97*10^{-4}m^2)(sin30.1\°)}=0.135T$

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3 years ago