Compare and contrast the general characteristics of a gas giant planet and one of the inner planets (such as Mercury, Earth, Ven
1 answer:
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Answer:
91.914138 m
Explanation:
t = Time taken
u = Initial velocity = 15.6 m/s
v = Final velocity = -15.6 m/s (it will hit the ground at this speed)
s = Displacement
g = Acceleration due to gravity = 9.81 m/s² = a
The distance the car will travel is 91.914138 m
Relative speed of Tina with respect to David is given by
now the acceleration of Tina with respect to David
now the relative displacement would be zero when Tina cross David
so now we have
now the speed of Tina at this moment is given as
<em>so the speed will be 52 m/s</em>
Answer:
24 cm
Explanation:
Given:
Mass of proton = 1.67 × 10⁻²⁷ Kg
kinetic energy = 2.5 × 10⁻¹³ J
magnetic field in the cyclotron, B = 0.75 T
Now,
Kinetic energy = = 2.5 × 10⁻¹³ J
where, v is the velocity of the electron
or
= 2.5 × 10⁻¹³ J
or
v² = 2.99 × 10¹⁴
or
v = 1.73 × 10⁷ m/s
also,
centripetal force = magnetic force
or
= qvB
q is the charge of the electron
r is the radius of the dipole magnets
on substituting the respective values, we get
= 1.6 × 10⁻¹⁹ × 0.75
or
r = 0.2408 m ≈ 24 cm
Hence, the correct answer is 24 cm