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DerKrebs [107]
3 years ago
10

Need help!!

Physics
1 answer:
aniked [119]3 years ago
6 0
Without air resistance, the ball would reach a height of h = 31.9 m(pic 1)
The gravitational potential energy difference would be ΔU = 62.588J - 43.164J = 19,424J (pic2 + 3)
The work done by air resistance must be equal to the energy difference(pic4)
The magnitude of the air resistance: F = 0.883N

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In transverse waves, there is no _________ motion.
maria [59]

In a transverse wave, the disturbance are carried forward and the particles are undergoing to and fro motion. Hence in transverse waves, there is no horizontal motion.

A wave can be described as a disturbance that travels through a medium from one location to the other location without transporting any matter.

There are two types of matter,

(i) Transverse wave

(ii) Longitudinal wave

In a transverse wave, the particles of the medium move in a direction perpendicular to the direction of propagation of the wave. That means, the particles undergo to and fro motion about their mean position and moves in the direction of the wave propagation.

Examples are:

  • Radio waves
  • Light waves
  • Water waves when a stone is dropped in the pond

Whereas longitudinal waves undergo back and forth motion with respect to the mean position.

To learn more about waves: brainly.com/question/15663649

#SPJ1

4 0
2 years ago
Who invented the circuit?
Gre4nikov [31]
Jack Kilby invented the circuit
5 0
4 years ago
Finally, consider the expression (6.67 x 10^-11)(5.97 x 10^24)/(6.38 x 10^6)^2 Determine the values of a and k when the value of
Triss [41]

Explanation:

We need to find the value of following expression :

\dfrac{(6.67 \times  10^{-11})(5.97 \times  10^{24})}{(6.38 \times 10^6)^2}

Firstly, solving the numerator of the above expression :

=\dfrac{39.8199\times 10^{-11+24}}{40.7044\times 10^{12}}\\\\=\dfrac{39.8199\times 10^{13}}{40.7044\times 10^{12}}\\\\=9.7827

Rounding off the result = 9.78

In scientific notation : 9.78\times 10^0

The value of a = 9.78 and k = 0.

3 0
3 years ago
Objects 1 and 2 attract each other with a electrostatic force
algol13

Answer:

72.0 + 72.0 whatever you get for that answer

Explanation:

I don't know what else to put

5 0
2 years ago
A 20 watt light bulb is left burning inside a refrigerator operating on a reverse Carnot cycle. If the refrigerator also draws 2
Gwar [14]

Explanation:

Given that,

Power drawn by the refrigerator = 20 watt

Power of burning light inside = 20 watt

Room temperature = 27°C

We need to calculate the temperature

Using formula of coefficient of refrigerator

COR_{R}=\dfrac{Q_{c}}{W}

\dfrac{Q_{c}}{W}=\dfrac{T_{c}}{T_{H}-T_{c}}

Put the value into the formula

\dfrac{20}{20}=\dfrac{T_{c}}{T_{H}-T_{c}}

\dfrac{T_{c}}{T_{H}-T_{c}}=1

T_{h}=2T_{c}

T_{c}=\dfrac{T_{h}}{2}

T_{c}=\dfrac{27+273}{2}

T_{c}=150\ K

T_{c} is less than T_{h}

Therefore, refrigerator cools its interior below room temperature while the bulb is on.

Hence, This is the required solution.

8 0
4 years ago
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