Ahhh, there aren’t option to work with :v
Try writing them down here thnx
Answer:
Why do scientists usually talk about mass rather than weight? An object's weight is dependent on its mass and how strongly gravity pulls on it. The strength of gravity depends on how far away one object is from another. That's why the same object weighs different amounts on different planets.
Explanation: on Google
Answer:
14 x 98/12+13-8 = 119.33..
the .33.. is a repeating decimal
Answer:
12.99 Hz
Explanation:
Resonance is said to occur in an RLC circuit when maximum current is obtained from the circuit. Hence at resonance; XL=XC and Z=R.
XL= inductive reactance, XC= capacitive reactance, Z= impedance, R= resistance
The resonance frequency is given by;
fo= 1/2π√LC
L= 3×10^-3 H
C= 0.05 F
π= 3.142
Substituting values;
fo= 1/2×3.142√3×10^-3 × 0.05
fo= 12.99 Hz
Therefore the resonance frequency of the RLC circuit is 12.99 Hz
Answer:
a)0.364 ns
b)1.43 x 10^-3
c)163.21 x 10^-5 m
Explanation:
mass of the positron is m=9.1 x 10^-31 kg
charge is q=1.6 x 10^-19 C
strength of the magnetic field is B=0.0980 T
kinetic energy is K=2.30 keV=2.30 x 10^3 x 1.6 x 10^-19 J
0.5mv^2=6.68 x 10^-16 J
0.5 x 9.1 x 10^-31 x v^2 =3.68 x 10^-16
v=2.84 x 10^7 m/s
a)the period is T=2πm/qB
=2π(9.1 x 10^-31 )/1.6 x 10^-19x 0.0980
=0.364 ns
b) pitch is p=vcosθ(2πm/qB)
=2.84 x 10^7x cos82(0.364 x 10^-9)
=1.43 x 10^-3
c) radius is r=mvsinθ/qB
=(9.1 x 10^-31 )2.84 x 10^7x sin82/1.6 x 10^-19x 0.098
=163.21 x 10^-5 m
