stephanie, who has a mass of 75 kg is driving and suddenly slams on her brakes to avoid hitting a student crossing blanco road.
1 answer:
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Answer:
0.85 m/s²
Explanation:
Acceleration is change in velocity over change in time. In mathematically, it can be expressed as:
Our final velocity is given to be 17 m/s in 20 seconds. Initial velocity is at starting point which is 0 m/s in 0 second. Therefore:
Therefore, the acceleration of a horse from starting point to 17 m/s in 20 seconds is 0.85 m/s²
Answer:
The electric field is 16666.66 V/m.
The surface charge density is
The capacitance is
The charge on each plate is
Explanation:
Given that,
Area =7.70 cm²
Distance = 1.50 mm
Potential difference = 25.0 V
Suppose we find the electric field between the plates, the surface charge density, the capacitance and the charge on each plates.
We need to calculate the electric field
Using formula of electric field
Put the value into the formula
We need to calculate the charge density
Using formula of charge density
Put the value into the formula
We need to calculate the capacitance
Using formula of capacitance
Put the value into the formula
We need to calculate the charge
Using formula of charge
Put the value into the formula
Hence, The electric field is 16666.66 V/m.
The surface charge density is
The capacitance is
The charge on each plate is