Answer:
Explanation:
Potential difference between two points in constant electric field is given by the formula
here we know that
also we know that
now we have
now change in potential energy is given as
On a floor directly underneath a second-floor balcony, there are several spherical drops of blood about 7 mm in diameter. Which
1 answer:
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Answer:
2.87 km/s
Explanation:
radius of planet, R = 1.74 x 10^6 m
Mass of planet, M = 7.35 x 10^22 kg
height, h = 2.55 x 10^6 m
G = 6.67 x 106-11 Nm^2/kg^2
Use teh formula for acceleration due to gravity
g = 1.62 m/s^2
initial velocity, u = ?, h = 2.55 x 10^6 m , final velocity, v = 0
Use third equation of motion
0 = v² - 2 x 1.62 x 2.55 x 10^6
v² = 8262000
v = 2874.37 m/s
v = 2.87 km/s
Thus, the initial speed should be 2.87 km/s.
Answer:
<h2>1.67 m/s²</h2>Explanation:
The car’s acceleration can be found by using the formula
where
v is the final velocity
u is the initial velocity
t is the time taken
a is the acceleration
From the question we have
We have the final answer as
<h3>1.67 m/s²</h3>Hope this helps you
Answer:
The depth of stream to the student is
Explanation:
From the question we are told that
The actual depth of the stream is
The refractive index of the water is
Generally the apparent depth of the stream is mathematically represented as
substituting values