A 240 g oscillator has a speed of 115.0 cm/s when its
displacement is 2.70 cm and 75.5 cm/s when its displacement is 6.70
cm .
Part A What is the oscillator's maximum speed?
Express your answer with the appropriate units.
A 151 g oscillator has a speed of 130 cm/s when its displacement
is 2.00 cm and 75.5 cm/s when its displacement is 5.10 cm . What is
the oscillator's maximum speed?
A 456 g oscillator has a speed of 98.0 cm/s when its
displacement is 3.00 cm and 69.0 cm/s when its displacement is 5.30
cm.
What is the oscillator's maximum speed?
A sinusoidal wave is traveling on a string with speed 34.9 cm/s.
The displacement of the particles of the string at x = 5.9
cm is found to vary with time according to the equation
y = (3.9 cm) sin[1.2 - (7.1
s-1)t].
The linear density of the string is 4.8 g/cm. What are
(a) the frequency and (b) the
wavelength of the wave? If the wave equation is of the form
y(x,t) = ym sin(kx -
ωt),
what are...
A block weighing 259 g slides along a frictionless track at a
speed 6.1 cm/s. It then attaches to a spring-bumper with an
electromagnetic device so that the block attaches to the bumper.
The bumper has a mass of 130 g, and the spring has a stiffness of
1540 kg/s2 and an equilibrium length of 10.6 cm. After
the spring compresses and returns to its original length, the
magnet turns off and the block launches off again, conserving
energy.
(a)...
A 0.200-kg block on a smooth horizontal surface gains a speed of
28.2 cm/s when it is released from rest at the free end of a spring
that is compressed by 3.20 cm. The block is then connected to the
free end of the spring to form a mass-spring system.
What is the spring
constant? (A) 15.5 N/m; (B)
16.5 N/m; (C) 17.5 N/m; (D) 18.5 N/m; (E) 19.5 N/m.
What is the period of this harmonic oscillator? (A) 0.413...
An electron with a speed of 7.61 × 108 cm/s in the
positive direction of an x axis enters an electric field
of magnitude 1.14 × 103 N/C, traveling along a field
line in the direction that retards its motion. (a)
How far will the electron travel in the field before stopping
momentarily, and (b) how much time will have
elapsed? (c) If the region containing the electric
field is 7.36 mm long (too short for the electron to stop...
A circular concrete pile has a low displacement driven with a
diameter of 40 cm and a length of 15 m is impeded in a sandy soil.
The values of the standard penetration number are assigned for each
1 m depth from top to bottom and these numbers are: 6, 7, 9, 8, 12,
13, 12, 15, 15, 13, 18, 22, 28, 30, 27, 12, 15, 16, 30, 27. Fine
the allowable pile capacity of this pile by using Meyerhof’s...
Part A: A calorimeter contains 18.0 mL of water at 13.5∘C. When
2.30 g of X (a substance with a molar mass of 69.0 g/mol) is added,
it dissolves via the reaction X(s)+H2O(l)→X(aq) and the temperature
of the solution increases to 30.0∘C. Calculate the enthalpy change,
ΔH, for this reaction per mole of X. Assume that the specific heat
of the resulting solution is equal to that of water [4.18
J/(g⋅∘C)], that density of water is 1.00 g/mL, and that...
A wire with a linear mass density of 1.08 g/cm moves at a
constant speed on a horizontal surface and the coefficient of
kinetic friction between the wire and the surface is 0.250. If the
wire carries a current of 1.31 A westward and moves horizontally to
the south, determine the magnitude and direction of the smallest
magnetic field that can accomplish this.
magnitude ____ T
direction ______