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3 years ago

How does a pendulum model an energy conversion system? NO LINKS!

2 answers:

8 0

Answer:As a pendulum swings, its potential energy converts to kinetic and back to potential. ... A swinging pendulum.

Explanation:During the course of a swing from left to right, potential energy is converted into kinetic energy and back.

vitfil [10]3 years ago

8 0

As a pendulum swings, its potential energy converts to kinetic and back to potential energy. During the swing from left to right, the potential energy is converted into kinetic energy and back.

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A brick has a mass of 660 grams and a volume of 440 cubic centimeters. Calculate its

gregori [183]

Answer:

Density = 1.5g/cm³

Explanation:

D=m/v

=660g/440cm³

=1.5g/cm³

8 0

3 years ago

What is the biggest current disadvantage to using gas hydrates as a form of energy?

ohaa [14]

When gas hydrates are brought to the surface, they evaporate quickly. This would be the biggest, current disadvantage to using gas hydrates as a form of energy.

6 0

4 years ago

Read 2 more answers

An alpha particle can be produced in certain radioactive decays of nuclei and consists of two protons and two neutrons. The part

Varvara68 [4.7K]

Answer:

Explanation:

charge, q = 2e = 2 x 1.6 x 10^-19 C = 3.2 x 10^-19 C

mass, m = 4 u = 4 x 1.661 x 10^-27 kg = 6.644 x 10^-27 kg

Radius, r = 4.5 cm = 0.045 m

Magnetic field, B = 1.20 T

(a) Let the speed is v.

$v=\frac{Bqr}{m}$

$v=\frac{1.20\times 3.2\times 10^{-19}\times 0.045}{6.644\times 10^{-27}}$

v = 2.6 x 10^6 m/s

(b) Let T be the period of revolution

$T=\frac{2\pi r}{v}$

$T=\frac{2\times 3.14\times 0.045}{2.6\times 10^{6}}$

T = 1.09 x 10^-7 s

$K=\frac{B^{2}\times q^{2}\times r^{2}}{2m}$

$K=\frac{\left ( 1.20\times 3.2 \times 10^{-19}\times 0.045 \right )^{2}}{2\times 6.644\times 10^{-27}}$

K = 2.25 x 10^-14 J

(d) Let the potential difference is V.

K = qV

$V = \frac{K}{q}$

$V= \frac{2.25\times 10^-14}{3.2\times 10^{-19}}$

V = 70312.5 V

5 0

3 years ago

Which answer would be the least influential for participating in an indoor high-intensity cycling class

katen-ka-za [31]

Answer:

Explanation:

https://www.acefitness.org/education-and-resources/lifestyle/blog/6618/what-you-need-to-know-about-group-indoor-cycling

try this link

4 0

3 years ago

A football player with a mass of 88 kg and a speed of 2.0 m/s collides head-on with a player from the opposing team whose mass i

Ket [755]

Answer:

Speed of another player, v₂ = 1.47 m/s

Explanation:

It is given that,

Mass of football player, m₁ = 88 kg

Speed of player, v₁ = 2 m/s

Mass of player of opposing team, m₂ = 120 kg

The players stick together and are at rest after the collision. It shows an example of inelastic collision. Using the conservation of linear momentum as :

$m_1v_1+m_2v_2=(m_1+m_2)V$

V is the final velocity after collision. Here, V = 0 as both players comes to rest after collision.

$v_2=-\dfrac{m_1v_1}{m_2}$

$v_2=-\dfrac{88\ kg\times 2\ m/s}{120\ kg}$

$v_2=-1.47\ m/s$

So, the speed of another player is 1.47 m/s. Hence, this is the required solution.

7 0

4 years ago