An amateur race car driver buys a used Datsun car for drag racing. It
can attain highway speed with an
acceleration of 3.76 m/s^2. By making
changes to its engine, he can
increase the net horizontal force on
the car by 24.0%. With much less
expense, he can remove material
from the body of the car to decrease
its mass by 24.0%. (a) Which of these
two changes, if either, will result in
the greater increase in the car's
acceleration? (b) If he makes both
changes, what acceleration can she
attain?

when the use of electricity burdens the fuse and miniarure circuit beakers and there is a possibility of a fuse then they automatically cut off the electricity supply to your homes and after you fix the problem u jzt switch it on and it continues the supply of electricity to ur homes

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.

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explanation: