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mash [69]
4 years ago
14

Which has a larger resistance a 60 w lightbulb or a 100 w lightbulb?

Physics
1 answer:
Anni [7]4 years ago
4 0
100w bulb has a greater resistance according to p=vi and v=ir
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How does kinetic energy affect the stopping distance of small vehicle compared to a large vehicle
Nadusha1986 [10]
The kinetic energy for a large vehicle is different from that of a smaller vehicle, assuming that the vehicles are travelling at the same speed and stopping the same distance. This is because for a larger vehicle the kinetic energy is higher, as the mass for a larger vehicle, is more than the smaller vehicle.
4 0
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Which force always pulls downward on objects?
oksano4ka [1.4K]
Gravity. Hope this helps!
6 0
4 years ago
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A photon has a momentum of 5.55 x 10-27 kg-m/s. (a) What is the photon's wavelength? nm (b) To what part of the electromagnetic
Brrunno [24]

Explanation:

It is given that,

Momentum of the photon, p=5.55\times 10^{-27}\ kg-m/s

(a) We need to find the wavelength of this photon. It can be calculated using the concept of De-broglie wavelength.

\lambda=\dfrac{h}{p}

h is the Planck's constant

\lambda=\dfrac{6.67\times 10^{-34}\ Js}{5.55\times 10^{-27}\ kg-m/s}

\lambda=1.2\times 10^{-7}\ m

or

\lambda=120\ nm

(b) The wavelength lies in the group of ultraviolet rays. The wavelength of UV rays lies in between 400 nm to 10 nm.

3 0
4 years ago
Turning a corner at a typical large intersection in a city means driving your car through a circular arc with a radius of about
Naddik [55]

Answer:

9.89 m/s.

Explanation:

Given that,

The radius of the circular arc, r = 25 m

The acceleration of the vehicle is 0.40 times the free-fall acceleration i.e.,a = 0.4(9.8) = 3.92 m/s²

Let v is the maximum speed at which you should drive through this turn. It can be solved as follows :

a=\dfrac{v^2}{r}\\\\v=\sqrt{ar} \\\\v=\sqrt{3.92\times 25} \\\\=9.89 m/s

So, the maximum speed of the car should be 9.89 m/s.

8 0
3 years ago
A block attached to a string moves in a circle as shown above.
Alexandra [31]
Number 2 because of the laws of Byron
8 0
3 years ago
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