Answer:
the sun
Explanation:
the sun emits all types of electromagnetic radiation but a vast majority of it comes in the for of in the for of visible light ultraviolet rays and infrarays
Answer:
20 5/6 sec
Explanation:
To find the solution we divide 5000 by 240
However, when you see a problem, always try to simplify
5000/240=500/24=250/12=125/6
Now the division is much easier
20 5/6 sec
The correct answer is Upthrust= 0.7N and Volume = 1.02 x 10⁻² g
Solid weighs.09 N in air.
Solid weighs less than liquid because of an upward force operating on it (solid weighs in liquid =.02 N).
A solid body experiences an upthrust when it is partially or entirely submerged in a fluid, such as water. In this case, the fluid's weight (water) equals the fluid's weight that the water has displaced.
upthrust is = to.09 -.02 N = 0.7N.
Upthrust = displaced liquid's weight
so that weight of liquid equal to volume of solid = 0.7 N
Volume of solid times mass of liquid = 0.07/9.8 = 0.00714 = 7.14 x 10⁻³ kg
Volume = Mass / density
Volume = 7.14 x 10⁻³ / 700
= 1.02 x 10⁻⁵ kg= 1.02 x 10⁻² g
To learn more about upthrust refer the link:
brainly.com/question/24383048
#SPJ9
Answer:
(a) The aspect of the upper string supporting the weight and the applied force
Student 1 is correct because the upper string is the source of support of the large weight and the force applied to the short string reacts at the support of the long string
(b) The aspect of Student's (2) reasoning that is correct is that the shorter piece of string will always break first, however, the statement is only true for sudden pull due to the increased force experienced by the shorter string from a more rapid change in momentum
(c) The aspect of Student 1's statement that is incorrect is the that the upper string will always break first
The aspect of Student 2's statement that is incorrect is the that the shorter piece of string will always break first
(d) A string will break when subject to a force equivalent to its breaking force. The force experienced by the string increases as the rate of pull (suddenness) increases and the suddenness increases inversely with the length of the string, as such the shorter lower string will break first from a sudden pull before the force of the pull is completely transmitted to the upper string. Whereby the lower string is slowly pulled, the force is evenly transmitted to the upper string which is then taking up the load of the weight and the applied force together and is likely to break first
Explanation:
Answer:
<h2>14.55 m</h2>
Explanation:
The height of the hill can be found by using the formula
![h = \frac{PE}{mg} \\](https://tex.z-dn.net/?f=h%20%3D%20%20%5Cfrac%7BPE%7D%7Bmg%7D%20%20%5C%5C%20)
where
m is the mass
h is the height
g is the acceleration due to gravity which is 10 m/s²
From the question we have
![h = \frac{4800}{33 \times 10} = \frac{4800}{330} \\ = 14.545454...](https://tex.z-dn.net/?f=h%20%3D%20%20%5Cfrac%7B4800%7D%7B33%20%5Ctimes%2010%7D%20%20%3D%20%20%5Cfrac%7B4800%7D%7B330%7D%20%20%5C%5C%20%20%3D%2014.545454...)
We have the final answer as
<h3>14.55 m</h3>
Hope this helps you