Answer:
Yes
Explanation: The Answer is True not false
Answer:
Explanation:
Magnetic field B = 5 x 10⁻³ T
Speed of electron
= ( 5.5 /100) x 3 x 10⁸
= 165 x 10⁵ m /s
Magnetic force on electron
F = Bqv
B is magnetic field , q is charge on electron and v is its velocity
= 5 x 10⁻³ x1.6 x 10⁻¹⁹ x 165 x 10⁵
1320 x 10⁻¹⁷ N
13.2 X 10⁻¹⁵ N
= 13.2 f N
b )
Acceleration = force / mass of electron
= 1320 x 10⁻¹⁷ / 9.1 x 10⁻³¹
= 14.5 x 10¹⁵ m/s²
= 14.5 Pm/s²
c ) The direction of the moving electron will change but its speed will remain constant.
This is so because the magnetic force will be acting perpendicular to the velocity of electron all the time in course of its motion.
Answer:
Scalar quantities are physical quantities which have a magnitude and direction.
e.g. in 5 km, 5 is the magnitude(number) and km is the unit.
some scalar quantities are mass, length, distance, speed, power, energy, temperature etc.
Answer:
increasing more mass will decrease the acceleration of the skateboarder.
Explanation:
Newton's Second Law states whenever an unbalanced force is applied on an object, it produces an acceleration in the object in the direction of force. This acceleration is directly proportional to force by inversely proportional to mass.
where,
F = Force
a = acceleration
m = mass
If we consider force applied on the skateboarder, then the acceleration is inversely proportional to mass, only.
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<u>Therefore, increasing more mass will decrease the acceleration of the skateboarder.</u>
Answer:
low energy
Explanation:
They use low amounts of energy and don't affect the developing process. The chemicals used and the negative film are affected by regular light and it can destroy the pictures and the development. The red light prevents chemical processes that destroy the photos and that's why it is used in dark rooms.
Hope this was helpful
