Answer:
4cm
Explanation:
Magnification of the virtual image
= image distance / object distance
Given
Image distance = 60.0cm
Object distance = 15.0cm
Therefore,
Magnification = 60.0/15.0
= 4 cm
Answer
Work done will be equal to 1229.296 J
Explanation:
We have given mass of the sister m = 25 kg
Angle between rope and ground 
Force F = 30 N
So horizontal force 
Distance traveled d = 52 m
'We have to find the wok done
Work done is equal to multiplication of horizontal force and distance
So work done 
answer- 2.3
km/hr 120/1 276/h 276/2.3
C. Three isotopes of the same element because the number of electrons and protons remain the same but the number of neutrons in the nucleus are different. This means that the isotopes have different masses to each other but the same chemical properties.
The correct answer is: (A) An Atmosphere
Explanation:
The atmosphere of Venus is almost ninety times denser than that of Earth. Due to Venus' denser atmosphere and chemical composition (as its atmosphere comprises of over 96% of Carbon dioxide), it experience an immense greenhouse effect. That is why its surface temperature remains higher than 470°. At that very high temperature, it is impossible to have life on the surface of Venus.
