Answer:
C. The object will move if the forces are unbalanced.
A. net
Explanation:
just took the test swear to god that the answer
- Atoms are not divisible into smaller particles.
- It is impossible to define the mass of an atom.
- The atom contains no particles that have a neutral charge.
Answer:
- The positive charge in an atom is concentrated in one location.
Explanation:
In Rutherford's experiment when alpha particles are projected towards the gold foil then he observed that major proportion of the alpha particles are moved out undeviating.
This shows that alpha particles which are positively charged are not repelled by other positive charge of nucleus as it is concentrated at small part of atom
because very few alpha particles are reflected back at 180 degree so he concluded that nucleus charge is concentrated at very small space
and that part is termed as nucleus.
so correct answer is
- The positive charge in an atom is concentrated in one location.
corona
core
radiative zone
chromosphere
convective zone
The correct answer to the question is : Photosphere i.e it is the region whose temperature is 6000 degree celsius.
EXPLANATION:
The Sun has many regions starting from photosphere to central core. Different regions of the sun has different temperature.
The temperature of the sun is due to the fusion occurring inside it. The core temperature is immense due to the gravitational attraction which produces more heat there. Gradually the temperature decreases as we move away from the sun core.
As per the question, the temperature is given as 6000 degree celsius.
The region of the sun which corresponds to this temperature is photosphere. The temperature of photosphere varies from 5500 degree celsius to 7500 degree celsius. The temperature of sunspots found in the sun may be lower than the average temperature of the photosphere.
Hence, the correct answer is Photosphere.
The ozone layer absorbs most of the incoming ultraviolet rays radiation from the sun. The ozone layer is found at the second layer of the atmosphere, stratosphere.
Answer:
the center of gravity moves by 1.9 m towards the origin
Explanation:
from the question we are given the following
John's mass (Mj) = 91.2 kg
Barbara's mass (Mb) = 51.9 kg
John's location (Xj) = + 9.99 m
Barbara's location (Xb) = +3.27 m
center of mass (X) = ?
the center of mass is where the masses of John and Barbara is concentrated, and it is given by the formula below
X = ( ( Mj x Xj ) + ( Mb x Xb ) ) / (Mj + Mb)
X = ( ( 91.2 x 9.99 ) + ( 51.9 x 3.27 ) ) / ( 91.2 + 51.9 )
X = 7.6 m
now when they switch positions their locations now become
John's location (Xj) = + 3.27 m
Barbara's location (Xb) = +9.99 m
now putting their new locations into the formula
X = ( ( 91.2 x 3.27 ) + ( 51.9 x 9.99 ) ) / ( 91.2 + 51.9 )
X = 5.7 m
therefore the center of mass moves by
7.6 - 5.7 = 1.9 m
the center of gravity moves by 1.9 m towards the origin
Answer:
The Cerebellum controls muscle coordination and posture.