Most of the energy we use on earth comes from the sun—how does that energy(light and thermal)end up?

1 answer:

8 0

Most of the energy we use on earth comes from the sun—how does that energy(light and thermal)end up?

As ____energy in our food

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). with the input voltage range set at +/- 500mv, what is the smallest difference in voltage that can be resolved? show your cal

dalvyx [7]

The smallest difference in voltage that can be resolved is referred to as the resolution. The resolution can be calculated with the following formula:
resolution=voltage range / digital range
The voltage range in our case is from -500mV to 500mV, which gives 1000mV.
The digital range on the other hand is 2^(number of bits).
It depends on what type of bit board we are using. If the ADC we are using is a 16 bit board, then 2^16=65536.
So, the resolution is:
resolution=1000mV/65536=0.015 mV

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3 years ago

What is the force of a punch if it accelerates at 0.2m/s2 and has a mass of 2kg?

OleMash [197]

Answer:

0.4 N

Explanation:

We know ,

F = ma
F = 0.2 * 2 N
F = 0.4N

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2 years ago

A criminal suspect must be read his or her rights when arrested.this process is referred to as

barxatty [35]

That process is called the Miranda rights

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Kayla drew two ray diagrams to compare the behavior of light rays.

Naddika [18.5K]

The answer is the last option

Explanation:

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A bird sits on top of a 639 m tall tower. If it's gravitational potential energy up there is 2033 J, what is its mass?

iris [78.8K]

The mass of the bird is 0.32 kg.

Explanation:

Gravitational potential energy, the energy exhibited by an object at rest due to the influence of gravitational force. So the increase in distance of object from the surface of earth leads to increase in the gravitational potential energy. Thus,

$\text {Gravitational potential energy}=m \times \text { Acceleration } \times \text { Distance of bird from bottom }$

So, as the gravitational potential energy is given as 2033 J and the position of bird placed on the tall tower is 639 m away from the bottom, then the mass (m) of the bird can be found as below.

$m o f \text { bird }=\frac{\text {Gravitational potential energy}}{a \times \text {Distance}}=\frac{2033}{9.8 \times 639}=\frac{2033}{6262.2}$

So, finally we get the bird's mass as,

m of bird = 0.32 kg

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2 years ago