Which of the following quantities are constant for a projectile during it's flight?

Select all that are True.

a.y

b.v

c. v_x

d. x

e. r

f. a_y

g. v_y

h.  a_x

19.26 A container holds 2.5 g of argon at a pressure of 8.0atm.

Part A

How much heat is required to increase the temperature by 100∘C at constant volume?

Express your answer to two decimal places and include the appropriate units.

Part B

How much will the temperature increase if this amount of heat energy is transferred to the gas at constant pressure?

19.53 A 10 cm -diameter cylinder contains argon gas at 10 atm pressure and a temperature of 60 ∘C . A piston can slide in and out of the cylinder. The cylinder's initial length is 21 cm . 2500 J of heat are transferred to the gas, causing the gas to expand at constant pressure.

Part A

What is the final temperature of the cylinder?

Part B

What is the final length of the cylinder?

Visitors at a science museum are invited to sit in a chair to the right of a full-length diverging lens (f1 = -3.30 m) and observe a friend sitting in a second chair, 1.80 m to the left of the lens. The visitor then presses a button and a converging lens (f2 = +4.50 m) rises from the floor to a position 2.10 m to the right of the diverging lens, allowing the visitor to view the friend through both lenses at once. Find (a) the magnification of the friend when viewed through the diverging lens only and (b) the overall magnification of the friend when viewed through both lenses. Be sure to include the algebraic sign (+ or -) with your answers.

A 0.30-kg ball is thrown with a speed of 7.0m/s at an upward angle of 23?. Use conservation of energy

Part A

What is its speed at its highest point?

Part B

How high does it go?

*Please answer all three parts

Three Part Question: X. (A) NASA Atmospheric Mission balloons use helium that expands to almost 1 million cubic meter at the top of the atmosphere where pressure is 0.003 atm only. Even though it takes about 2.5 hours to get to this altitude, it is assumed that the rise is fast enough to be considered as adiabatic. Find the initial volume of the helium at the ground level. (Helium is a mono-atomic gas). (B) If the initial temperature of the gas was 15 degree celsius what is the temperature of the gas at the top? Ignore real atmospheric temperature changes. (C) What is the change in internal energy of the gas?

*Please provide steps, explanations, and formulas.

*Explain to me as if I know nothing

*I am genuinly trying to learn and understand. Please and thank you.

1.) What is the absolute pressure of the air in your car's tires, in psi, when your pressure gauge indicates they are inflated to 35.0psi ? Assume you are at sea level.

2.)A Jaguar XK8 convertible has an eight-cylinder engine. At the beginning of its compression stroke, one of the cylinders contains 499 cm3 of air at atmospheric pressure

(1.01

A thin 0.200-kg rod that is 350 mm long has a small hole drilled through it 87.5 mm from one end. A metal wire is strung through the hole, and the rod is free to rotate about the wire.

A. Determine the rod's rotational inertia I about this axis.

B. Determine the period of the rod's oscillation.

1. List the three types of radioactive decay and specifically what particles are released from the nucleus during these decays.

2. Radioactivity exists naturally and is man made. Radioactive particles are used for a variety of purposes in industry and medicine. Provide a list of at least 3 unique uses of radioactivity for the benefit of mankind.

3. Many workers are exposed to radioactivity while on the job. These workers must be monitored and are not allowed to continue to work in certain positions once an exposure amount has been met. What are the three parameters associated with an increase of dose on the worker? How could this dose possibly be minimized?

A -8.50 nC point charge and a +17.0nC point charge are 14.5 cm apart on the x-axis.

a)What is the electric potential at the point on the x-axis where the electric field is zero?

b)What is the magnitude of the electric field at the point on the x-axis, between the charges, where the electric potential is zero?

(1) Which pattern, single-slit or double-slit, gives a more accurate determination of wavelength or do they both give equally accurate values? Defend your answer.

(2) From you superimposed single and double slit patterns, what can you conclude about the influences of the slit width, and the slit separation, or the double slit pattern?

The nucleus of the hydrogen atom has a radius of about
1 x 10^-15 m. The electron is normally at a distance of about 5.3 x 10^-11 m
from the nucleus. Assuming that the hydrogen atom is a sphere with a
radius of 5.3 x 10^-11 m, find (a) the volume of the atom, (b) the
volume of the nucleus, and (c) the percentage of the volume of the
atom that is occupied by the nucleus.The nucleus of the hydrogen atom has a radius of about
1 x 10^-15 m. The electron is normally at a distance of about 5.3 x 10^-11 m
from the nucleus. Assuming that the hydrogen atom is a sphere with a
radius of 5.3 x 10^-11 m, find (a) the volume of the atom, (b) the
volume of the nucleus, and (c) the percentage of the volume of the
atom that is occupied by the nucleus.

On planet Tehar, the free-fall acceleration is the same as that on Earth, but there is also a strong downward electric field that is uniform close to the planet's surface. A 1.86-kg ball having a charge of 5.04 μC is thrown upward at a speed of20.1 m/s. It hits the ground after an interval of 4.10 s. What is the potential difference between the starting point and the top point of the trajectory? (Use 9.8 m/s² for the acceleration due to gravity.)

Using a pair of positive and negative test charges describe how you could determine the
charge on an object dangling from a rope. That is, outline a procedure to test the charge,
describe possible outcomes of your procedure and state the conclusions each outcome
would lead to.

1) A neutron star is the collapsed remains of a massive star after it "dies". Use the law of conservation of angular momentum to explain why the neutron star spins faster than its parent star.

2) Consider lifting a 10-lb bag of flour (~50 N) 3 feet high (~1 m). To equal the power of a 100-W lightbulb, how fast must you lift the flour?

please answer in full, detail sentences

When a turntable rotating at 16 rev/min is shut off, it comes to rest in 26 s. Assume constant angular acceleration.

(a) Find the angular acceleration.
rad/s²

(b) Find the average angular velocity of the turntable.
rad/s

(c) Find the number of revolutions it makes before stopping.
rev