Answer:
Explanation:
Given
radius
Charge on surface
Point Charge inside sphere
Electric Field at
Treating Surface charge as Point charge and applying Gauss law
where A=surface area up to distance r
More massive objects have a large gravitational force or weight. Why do heavier objects accelerate to the ground at the same rat
2 answers:
Answer:
D) Heavier objects need a greater force to accelerate according to F=ma.
Explanation:
The force of gravity acting on an object is equal to:
F = mg
where m is the mass of the object and g is the acceleration due to gravity. According to the formula, heavier objects (objects with greater mass, m) have a larger force of gravity acting on them.
However, the acceleration of an object towards the ground is given by:
therefore, we see that if the object is heavier (larger mass, m), the force of gravity (F) must also be larger in order to have the same acceleration a.
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The sprinter’s average acceleration is 1.98 m/s²
The given parameters;
- initial velocity of the sprinter, u = 18 km/h
- final velocity of the sprinter, v = 27 km/h
- time of motion of the sprinter, t = 3.5 x 10⁻⁴ h
Convert the velocity of the sprinter to m/s;
The time of motion is seconds;
The sprinter’s average acceleration is calculated as follows;
Thus, the sprinter’s average acceleration is 1.98 m/s²
Learn more here:brainly.com/question/17280180