Aproton travels at a speed of 2.0 × 106 meters/second. its velocity is at right angles with a magnetic field of strength 5.5 × 10-3 tesla. what is the magnitude of the magnetic force on the proton? a. 1.0 × 10-15 newtons b. 1.8 × 10-15 newtons c. 2.1 × 10-16 newtons d. 5.5 × 10-16 newtons
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Ответ:
The answer is B : F = 1.8 X 10 ∧ -15
Given:
Velocity of the proton: 2.0 × 10∧6 m/sec
Magnetic field strength(B): 5.5 × 10∧-3 tesla
Now it is given that velocity and the magnetic field are at 90 degree.
Also Magnetic force F= qvBsin∅
where F is the magnetic force
q is the charge of the proton which is equal to 1.602x10∧-19 coloumbs
∅ is the angle between the v and B.
v is the velocity of the proton
B is the magnetic field
Substituting the values we get
F = 1.602 x 10 ∧-19 × 2.0 × 10∧6 × 5.5 × 10∧-3 Sin 90
F= 17.6 x 10 ∧-16 N
F= 1.76 x 10∧-15 N
Rounding off we get F = 1.8 X 10 ∧ -15 N
Ответ:
PLATO ANSWERS
1.8 × 10^6-15 newtons
Ответ:
90.44 m
Explanation:
From the question given above, the following data were obtained:
Initial velocity (u) = 30 m/s
Angle of projection (θ) = 40°
Acceleration due to gravity (g) = 9.8 m/s²
Range (R) =?
The range of the ball can be obtained as follow:
R = u² Sine 2θ / g
R = 30² Sine (2×40) / 9.8
R = 900 Sine 80 / 9.8
R = 900 × 0.9848 / 9.8
R = 886.32 / 9.8
R = 90.44 m
Therefore, the range of the tennis ball is 90.44 m