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Fed [463]
3 years ago
7

Write three things that

Physics
1 answer:
Mars2501 [29]3 years ago
5 0
1. A lamp can transfer energy through light and thermal energy, fire, and a radiator.
2. A tuning fork can transfer sound energy/vibration throughout a medium, speaker, and a piano.
3. A heart works by electrical energy produced from chemical energy within the body, computer, and a phone. 

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What is the minimum kinetic energy in electron volts that an electron must have to be able to ionize a hydrogen atom (that is, r
marissa [1.9K]
13.6/4^2 - (-13.6/3^2) = -13.6/16 + 13.6/9 = .66 eV<span>
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3 years ago
A book is sitting on a desk. What best describes the normal force acting on the book?
Marat540 [252]

Explanation:

in my opinion I'd say it's gravity because it's making the book stay in it's one and only position pulling the book at the center of the desk

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3 years ago
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When a comet is within the inner solar system, its visible tails point __________.
astraxan [27]

away from the sun

hope it helps...!!!!

6 0
2 years ago
The block A and attached rod have a combined mass of 50 kg and are confined to move along the guide under the action of the 796-
Luba_88 [7]

Answer:

The bending moment is 459.16 N.m

Explanation:

From the given information;

Let's assume that the angle is 66°

Then, the free body diagram is draw and attached in the file below.

Now, the calculation of the acceleration from the first part of the free body diagram is:

\sum F_x = ma_x \\ \\ 796 - 50(9.81) sin 66=50a \\ \\ 796 - 448.094 = 50 a  \\ \\ a = \dfrac{347.906}{50} \\ \\ a  = 6.96 \ m/s^2

Bending moment M:

From the second part of the diagram:

\sum M_B = mad \\ \\ M - (15 \times 9.81) (1.5) = (25 \times 6.96)(1.5 sin 66) \\ \\ M - 220.725 = 238.435  \\ \\  M = 238.435 + 220.725 \\ \\  \mathbf{M = 459.16 \ N.m}

6 0
3 years ago
Lamp power with 120 W what is the current through the lamp when it is connected to a 12 V battery ?
SVETLANKA909090 [29]

Answer:

current = 10A

Explanation:

recall the formula, Power = current * voltage

                              120 W  = current * 12V

                               current (A) = 120 W / 12V

                               current = 10A

3 0
3 years ago
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