Answer:Sometime decreases and sometime increases.
Explanation:
Given
Projectile is launched at
so horizontal velocity=ucos35
vertical velocity=usin35
since gravity acts in the vertical direction, therefore, it affects only the vertical component of the projectile.
So Vertical velocity first decrease up to maximum height and then starts to increase.
Answer:
599 meters is the answer rounded to the nearest whole number and 599.489795918 meters is the complete answer
Explanation:
to find gravitational potential energy you multiply mass x acceleration due to gravity (always 9.8 on earth) x hight
since we know the gravitational potential energy and want to find out the hight, we take the gravitational potential energy (470,000) and divide it by the product of acceleration due to gravity x mass (9.8 x 80)
so how high the hiker climbed is equal to 470,000 divided by (9.8 x 80)
hight = 470,000 / (9.8 x 80)
hight = 470,000 / 784
hight = 599.489795918 meters
as for rounding, if the decimal is less than 5 you round "down" and keep the current whole number, if the decimal is 5 or greater you round "up" and add 1 to get your new number
Answer:
Absolute Pressure at depth h =
Explanation:
<u>Given:</u>
- Radius of the bubble at depth h,
- Radius of the bubble at the surface of the water,
- Acceleration due to gravity,
<u>Assumptions:</u>
- Atmospheric pressure,
- Density of water,
- Pressure at depth h =
- Pressure at the surface of water =
According to Ideal Gas Law,
where,
- P = pressure.
- V = volume.
- n = number of molecules.
- k = Boltzmann constant.
- T = absolute temperature.
For the given case, the temperature of the air bubble is constant. The number of molecules of the bubble also does not change, therefore,
PV = constant.
The pressure at the surface is equal to the atmospheric pressure,
The pressure at depth h is equal to sum of atmospheric pressure and the pressure of the water upto depth h,
Using these values,
The absolute temperature at that depth is given by
Answer:
A is the correct option.
Explanation:
Physics primer is a set of mathematics topics that are relevant to introductory physics courses. The idea behind the physics primer is to provide the students a strong base of mathematics concept that can be helpful for them in the future courses of physics. It should be taken before the introductory lessons of physics. It will help out students in solving those physics problems that involves mathematics. Physics primer is usually comprised of tutorials, answers of specific questions and videos.