Search & Filtering
You do periodic motions when you make repeated movements or actions in particular periods of time. When you do tasks repeatedly or you practice constantly, you have the tendency to master these tasks. What activities are you doing periodically? Are these periodic activities good or bad? How do they affect you?
Given the wave equation y(x,t) =2.0 Sin (3.0x-4.0t + π/2)m, where x is in meter and t is in second. Find the:
a) amplitude
b)Frequency
c) wavelength
d)speed
e) initial height at x=1.0m
Given the equation of the wave:
y(x,t)= 1.0mCos/2πm^-1 x - π/3s t)
What is
a) wavelength
b) frequency
c) angular frequency
d) period and
e) velocity
A sinusoidal wave travelling in the positive x direction has an amllplitude of 15.0 cm, a wavelength of 40.0 cm, and a frequency pf 8.00 Hz. The vertical position of an element of the medium at t=0 and x =0 is also 15.0 cm.
A. Find the wave number k, period T, angular frequency w, and speed v of the wave
B. Write a general expression for the wave function
The wave function that describes a certain transverse wave at initial time t=0 is
y(x,t)=(7.20mm)sin2π(x/0.3m - t/0.0400s)
Find the wave's
a) amplitude
b) wavelength
c) frequency
d) speed of propagation
e) period
f) wave number
g) direction of propagation
What is the equivalent capacitance of the combination?
(a)Slightly greater than the capacitance of the large capacitor
(b) Slightly less than the capacitor of the large capacitor
(c) Slightly greater than the capacitance of the small capacitor
(d) Slightly less than the capacitance of the small capacitor
(a) All capacitors have the same charge, and the equivalent capacitance is greater than the capacitance of any of the capacitors in the group.
(b) The capacitor with the largest capacitance carries the smallest charge.
(c) The potential difference across each capacitor is the same, and the equivalent capacitance is greater than any of the capacitors in the group.
(d) The capacitor with the smallest capacitance carries the largest charge.
(e) The potential difference across the capacitors are the same only if the capacitances are the same.
(a) It becomes 4 times larger
(b) It becomes 2 times larger
(c) It stays the same
(d) It becomes one-half as large.
(a) From the definition of capacitance, C = Q/V, it follows that an uncharged capacitor has a capacitance of zero.
(b) As described by the definition of capacitance, the potential difference across an uncharged capacitor is zero.
(i) Capacitance
(ii) Charge
(iii) Electric field between the plates
(iv) Voltage
#332078 on Oct 2022