B) A virtual image is produced if the object is on the focal point, the image is inverted, enlarged and on the opposite side of the lens from the object.
C) A virtual image is produced if the object is between the focal point and the lens, the image will be upright, enlarged and on the same side of the lens
as the object.
D) A virtual image is produced if the object is between the focal point and the
lens, the image will be upright, reduced and on the opposite side of the
lens from the object.
A virtual image is produced if the object is between the focal point and the lens.
A converging lens is a lens that can produce both real and virtual images depending on the position of the object.
A virtual image is produced if the object is between the focal point and the lens, the image will be upright, enlarged and on the same side of the lens as the object.
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Answer: C
Explanation:
Explanation:
Let be the airspeed.
Let be the cross wind speed.
We know that,ground speed is the vector sum of airspeed and cross wind speed and airspeed is perpendicular to cross wind speed.
If and are two perpendicular vectors,the resultant vector has the magnitude
Given,
So,the ground speed is
Answer: The acceleration is 145.54 m/s^2
Explanation: The second Newton's law says that:
F = m*a
This says that the Force applied on an object is equal to the mass of the object times the acceleration of the object.
We know that the mass of the ball is 0.426kg and the force is 62N, so we have
62N = 0.426kg*a
a=62N/0.426kg= 145.54 m/s^2
62/.426=a
154.54= acceleration
Erosion is caused by human activities like excessive construction, agriculture, surface mining and forestry. Removing the vegetative cover accelerates erosion, which is often caused by grazing, logging or cultivating. In some cases, it can be removed by pests like pigs, rabbits and goats.