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3 years ago

turning on the television is a form of _ energy that transforms into _ energy and/or sound energy

Physics

1 answer:

MariettaO [177]3 years ago

8 0

Electric energy into light energy and sound energy

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Show that linear S.H.M is projection of a U.C.M along any of its diameter

BigorU [14]

It shows that acceleration of particle M is directly proportional to its displacement and its direction is opposite to that of displament. Thus particle M performs simple harmonic motion but M is projection of particle performing U.C.M. hence S.H.M. is projection of U.C.M. along a diameter, of circle.

4 0

3 years ago

After an afternoon party, a small cooler full of ice is dumped onto the hot ground and melts. If the cooler contained 5.50 kg of

zysi [14]

Answer:

$Q = 4.40 \times 10^5 Cal$

Explanation:

Here we know that initial temperature of ice is given as

$T = 0^o C$

now the latent heat of ice is given as

$L = 80 Cal/g$

now we also know that the mass of ice is

$m = 5.50 kg$

so here we know that heat required to change the phase of the ice is given as

$Q = mL$

$Q = (5.50 \times 10^3)(80)$

$Q = 4.40 \times 10^5 Cal$

3 0

3 years ago

If a mass of 76 kg acts downward 0.38 m from the axis of rotation on one end of a board and another force of 129 N also acts dow

Semenov [28]

Answer:

y = 2.196 m

Explanation:

Mass, m = 76 kg

distance from axis of rotation, x = 0.38 m

Second Force, F = 129 N

moment arm of the second force, y = ?

Now, equating moments for the equilibrium

So,

m g × x = F x y

76 x 0.38 x 9.81 = 129 x y

$y = \dfrac{76\times 0.38\times 9.81}{129}$

y = 2.196 m

Hence, the length of the moment arm is equal to 2.196 m.

6 0

3 years ago

Identify the generic outer electron configuration for the halogens.

Delicious77 [7]

<span>The Halogen outer layer is considered to be full with eight electrons. Halogen is also considered to be part of the Noble gases classification. The exchange of electrons in the halogen atom renders a photon energy pulse with produces light. The consentrated light spectrum is produced in the halogen light bulbs and halogen laser products.</span>

8 0

4 years ago

Sarah is making bread. She measures 0.6 kg of hot water into a bowl. The water needs to be at a temperature of

Mrrafil [7]

Answer:

$\Delta m = 0.171\,kg$

Explanation:

The process of water adding is described by the First Law of Thermodynamics:

$m_{w,o} \cdot h_{w,o} + \Delta m \cdot h_{w} = (m_{w,o} + \Delta m)\cdot h_{w,f}$

The amount of additional mass is:

$m_{w,o}\cdot h_{w,o} - m_{w,o}\cdot h_{w,f} = \Delta m\cdot (h_{w,f}-h_{w})$

$\Delta m = \frac{m_{w,o}\cdot(h_{w,o}-h_{w,f})}{h_{w,f}-h_{w}}$

Given that water is incompressible, the equation can be further simplified:

$\Delta m = m_{w,o}\cdot \frac{c_{p,w}\cdot (T_{w,o}-T_{w,f})}{c_{p,w}\cdot (T_{w,f}-T_{w})}$

$\Delta m = m_{w,o}\cdot \left(\frac{T_{w,o}-T_{w,f}}{T_{w,f}-T_{w}} \right)$

$\Delta m = (0.6\,kg)\cdot \left(\frac{40 ^{\circ}C - 42^{\circ}C}{42^{\circ}C-49^{\circ}C} \right)$

$\Delta m = 0.171\,kg$

6 0

3 years ago

turning on the television is a form of ___ energy that transforms into ___ energy and/or sound energy

turning on the television is a form of _ energy that transforms into _ energy and/or sound energy