A light bulb converts electrical energy into light energy and also some thermal energy. The amount of electrical energy is 50 Joules before the conversions. What is the total amount of energy from before the conversions to after the conversions?

Answers

Answer 1

Answer: If the amount of electrical energy is 50 Joules before the conversions, then it would be 50 Joules after the conversion.

According to law of conservation of energy, we cannot create or destroy energy so it remains constant

Hope this helps!

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Do heavier objects fall slower than lighter things?

Answers

no, hevier things only seem to go faster because of air resistance

if you dropped two identical bottles in a vacum, with one empty and the other full, then both bottles would hit the ground at the same time

No. The gravitational pull on all objects -9.8m/s/s.
Because there is no mass variable in order to find the rate at which objects fall, this means that mass does not have an affect on the rate at which objects fall.
You also must consider wind resistance but that's a more in depth concept.

You can watch a video on youtube called "Hammer vs. Feather - Physics on moon". It shows how on the moon (Where there is no wind resistance) how a hammer and a feather fall at the same rate

Question 6 (1 point)Which fundamental force has not been successfully united with the others in a
particle accelerator?

- weak nuclear force

- electromagnetism

- strong nuclear force

- gravity

Answers

Answer:gravity

Explanation:

i just took the test and it was right!

Sound: The more _______ a sound has, the _________ its volume is.

Answers

First answer: vibrations Second: louder

a baseball bat is in contact with a ball for 0.02 seconds, and exerts a force of 400 newtons. what is the impulse on the ball?

Answers

Answer:

I=8 Nw.s

Explanation:

Impulse

It is a physical magnitude that measures the force applied to an object by the time that force is acting. It produces a change in the momentum of the object, which is expressed in the following formula

$I=\Delta p=m(v_2-v_1)=F.t$

We know the bat applies a force on the ball of F=400 N during t=0.02 sec, thus the impulse is

$I=(400) (0.02)=8\ Nw.s$

$\boxed{I=8\ Nw.s}$

What do you think is the difference between being imaginative in doing science and Doing pseudoscience?

Answers

I would say that being imaginative in science means finding new ways to find or analyse the data, but which do not make the data false or which do not manipulate the data. Being imaginative in science should not cross the boundary of making the science not reliable

Being imaginative in pseudoscience could mean manipulating the data or even making experiments in such a way as to only obtaining specific data or throwing away certain data.

What is the normal acceleration of a car?

Answers

The normal acceleration in the United States is zero to sixty time. The average rate on ordinary cars was between 3 and 4 m/s2

I went to everybody's favorite search engine to get some data to answer this question with. I can't name it, but it rhymes with Floogle. Anyway, I searched for the phrase "zero to 60" just to get an idea of what's hot.

Floogle pointed me to a website that provided this data on fast cars:

#1). 2016 AMZ Grimsel Electric Race Car0-60 mph 1.5 sec

#2). 2014 Porsche 918 Spyder0-60 mph 2.3 sec

#3). 2015 Tesla Model S P90D 'Ludicrous Speed' Upgrade0-60 mph 2.6 sec

And my favorite, because I own one:

#4). 2000 Dodge Intrepid ES 0-60 mph 8.4 sec

Here are the accelerations for the zero-to-60 times listed for these 4 cars:

#1). 17.88 m/s² (1.82 G's)
#2). 11.66 m/s² (1.19 G's)
#3). 10.32 m/s² (1.05 G's)
#4). 3.19 m/s² (0.33 of a G)

That's what these "fast cars" will do, on the track,
with their pedals mashed to the metal.

"Normal" accelerations are all less than these.

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