A 200 g block attached to a spring with spring constant 2.1 N/m oscillates horizontally on a frictionless table. Its velocity is 20 cm/s when x0 = -4.6 cm .

A. What is the amplitude of oscillation?

B. What is the block's maximum acceleration?

C. What is the block's position when the acceleration is maximum?

D. What is the speed of the block when x1 = 3.2 cm ?

A monatomic ideal gas expands from 2.00 m³ to 2.95 m³ at a constant pressure of 2.80 ✕ 10⁵ Pa. Find the following.

(a) Find the work done on the gas. J

(b) Find the thermal energy Q transferred into the gas by heat.
J

(c) Find the change in the internal energy of the gas.
J

Imagine shooting various colors of light at different kinds of metals. Depending on the work function of each metal, the light will or will not have enough energy to knock of an electron. (a) Which of the following metals will NOT emit electrons when visible light (with wavelengths of 380 nmto 700 nm) shines on them? (b) If visible light can cause the metal to emit electrons, specific if electrons will be emitted when red (685 nm) light is used, green (532 nm) light is used and blue (473 nm) light is used. W0 is the work function for each metal. Cesium(W0= 2.1 eV) Rubidium(W0 = 2.3 eV)

Describe two current strategies for solving the problem of intermittency for non-dispatchable renewables.

In a diagnostic x-ray procedure, 4.85×10¹⁰ photons are absorbed by tissue with a mass of 0.575 kg . The x-ray wavelength is 2.00×10⁻² nm .

A) What is the total energy absorbed by the tissue?

B) What is the equivalent dose in rem?

Styrofoam has a density of 32kg/m^3. What is the maximum mass that can hang without sinking from a 70-cm diameter Styrofoam sphere in water? Assume the volume of the mass is negligible compared to that of the sphere. Express your answer to two significant figures and include the appropriate units.

A laser beam with vacuum wavelength 582 nm is incident from air onto a block of Lucite as shown in the figure below. The line of sight of the photograph is perpendicular to the plane in which the light moves. Take θ1 to be 60°. Recall that the index of refraction of air is 1 and Lucite is 1.50. (a) Find the speed of the light in Lucite.. m/s (b) Find the frequency of the light in Lucite.. Hz (c) Find the wavelength of the light in Lucite. nm

Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -0.2532 N when separated by 50 cm, center-to-center. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres repel each other with an electrostatic force of 0.2525 N. What were the initial charges on the spheres? Since one is negative and you cannot tell which is positive or negative, there are two solutions. Take the absolute value of the charges and enter the smaller value here. Enter the larger value here.

Water drips from the nozzle of a shower onto the floor 200 cm below. The drops fall at regular (equal) intervals of time, the first drop striking the floor at the instant the fourth drop begins to fall. Find the locations (above the floor in cm) of the second and third drops when the first strikes the floor. Second drop? Third drop?

A ball is dropped from 2.00 and rebounds to a height of 1.75m. What is the maximum height it will achieve after bouncing 7 more times?

berdine has developed cataracts in both eyes preventing her from being able to identify een her mothers face, berdine most clearly suffers a deficiency in A)perceotual set b)sensory adaptation c)bottom-up processing

A neon atom (m=20.0u) makes a perfectly elastic collision with another atom at rest. After the impact, the neon atom travels away at a 40.0 ? angle from its original direction and the unknown atom travels away at a -50.0 ? angle.

Part A

What is the mass (in u) of the unknown atom? [Hint: You can use the law of sines.]

The average coefficient of volume expansion for carbon tetrachloride is 5.81 ? 10-4 (°C)-1. If a 40.5 gal steel container is filled completely with carbon tetrachloride when the temperature is 10.0°C, how much will spill over when the temperature rises to 33.5°C?