Answer:
E=mc^2=1.5*3*10^8=4.5*10^8 J
Explanation:
Plug your mass into E=mc^2. You know the value of c and m is already in SI Units
Friction is a force that acts in a direction opposite to motion. If there were not force of friction, a baseball player would never stop and would be continuously moving in the direction of motion. Balanced forces do not cause a nonmoving object to start moving.
Answer:
Magnitude of the resultant vector is R = 6.81 m
Explanation:
Given :
Vector A having magnitude of 2.5 m
Vector A having direction 37 degree south of east.
Vector B having magnitude of 3.5 m
Vector B having direction 20 degree north of east.
Therefore, the angle between the two vectors is, θ = 37+20 = 57 degree
So, the resultant of the two vectors are given by




R = 6.81 m
The least value varies depends on ammeter range. In the given question, ammeter range is not mentioned. So, the least value of an ammeter is 0.1 or 0.5 (depends on ammeter range).
<u>Explanation:</u>
The least value of an ammeter is the measure of the smallest number which can be observed in ammeter. So the least value will be varying depending upon its range. If we consider the range of ammeter is 30 A and the scale readings are 10 numbers, then the least value will be 30/10 = 3 A per scale.
So the least value is determined as 
So among the given options 0.1 is most suitable for an ammeter with range of 3 A with 30 divisions.
Answer:
5 N
Explanation:
The work done by a force on an object is (assuming that the direction of the force is parallel to the displacement of the object):

where
F is the magnitude of the force
d is the displacement of the object
In this problem, we know that:
W = 35 J is the work done
d = 7 m is the displacement of the object
Therefore, we can re-arrange the equation to calculate the force applied:
