Air density is sea level conditions (.002377 slugs/f^t3)

w(weight) of the SS Delphine + trailer + Redeye = 3,922,000 + 150,000 + 4451 Lbs

Crr = coefficient of rolling resistance = .015

Assume Combined CDA is 1555 ft^2

SAE J2807 (Davis Dam Grande Climb) - min speed is 40mpg (59 ft/s)

F(drag) = 1/2p x V^2 x C(d)A

F(rolling resistance) = W x cos x Crr

F(weight) = W x sin

F(sum) = F(drag) + F(rr) + F(weight)

P = F(sum)XV

convert to horsepower = P(1hp/550ft lbf/sec)

How many projections can the full spin have in the system containing 2, 3 and n electrons?
Which atoms have a nonzero angular momentum in the ground state?

1. Give a few reasons for studying physics.
2. Why must words be carefully defined for scientific use?
3. Why are simplified models used in scientific study if
they do not exactly match real conditions?

If the arm of a 118 lb female is held at a 45-degree angle from shoulder to hand, estimate the external forces and moments at the wrist, shoulder, and elbow joint for a bucket weighing 30 lbs held in the right hand. Use the anthropometric table to estimate segment lengths for a 75^th percentile female. ?

34.) 5. We perform a multi-slit experiment, using N = 6 slits. The wavelength of the light is lambda = 500nm and the distance of the screen from the slits is D = 15m.

a. Determine the distance of the slits, if the 3rd and 4th order diffraction fringes are 15mm away from each other.

b. How many major fringes are visible on the diffraction pattern if the coherence length of the light is δ= 2 micrometers?

c. How many minor fringes are between between each pair of major ones?

An 8.5 g ice cube at −10°C is put into a Thermos flask containing 150 cm³ of water at 30°C. By how much has the entropy of the cube-water system changed when equilibrium is reached? The specific heat of ice is 2220 J/kg · K. (The latent heat of fusion for ice is 333 kJ/kg and the specific heat of water is 4187 J/kg · K.)

Find the direction and magnitude of the net electrostatic force exerted on the point charge q2 in the figure.(Figure 1) Let q=+2.0μC and d=36cm. Express your answer using two significant figures. Fnet = N Previous AnswersRequest Answer Incorrect; Try Again; 4 attempts remaining Part B Express your answer using three significant figures. θ = nothing ∘ counterclockwise from q2-q3 direction Request Answer Provide Feedback q=+q q2=-2q q3=-3q q4=-4q please explain I am so confused

The element rubidium consists of two isotopes, the stable ⁸⁵Rb and radioactive ⁸⁷Rb (abundance 27.83%). What is the specific activity of natural rubidium chloride? Use Ar 85.47 gmol-1 for rubidium element, Ar 86.91 gmol-1 for ⁸⁷Rb, and Mr 120.92 gmol-1 for RbCl.

Correct answer is given, please explain why for each.

Concept Question 1 – A rock is thrown straight up from the surface of the earth. Ignoring air resistance, which of the following statements is correct as the rock moves upward? a) The total energy of the rock increases. b) Both the kinetic energy and the gravitational potential energy of the rock remain the same. c) Both the gravitational potential energy and the total energy of the rock increase. d) Both the kinetic energy and the total energy of the rock decrease. e) The kinetic energy of the rock decreases and the gravitational potential energy of the rock increases.

E is correct.

Concept Question 2 – A stationary bomb explodes in space breaking into several fragments. The net external force on the bomb at the time of the explosion is zero. Which statement is correct? a) The total kinetic energy is conserved. b) The sum of the kinetic energies of all the fragments is zero. c) The vector sum of the linear momenta of the fragments is zero. d) The velocity of any one fragment must be equal to the velocity of any other fragment. e) The speed of any one fragment must be equal to the speed of any other fragment.

C is correct

Concept Question 3 – Complete the statement: A collision is elastic if a) the total final momentum of the system is zero. b) the objects stick together. c) the final kinetic energy of the system is zero. d) the total kinetic energy of the system is conserved. e) the total momentum of the system is conserved.

D is correct.

1. Three resistors have values R₁= 47Ω, R₂ = 100Ω, and R₃ = 10 Ω. There is a 5V battery. The battery and three resistors are all connected in various circuits described below. Calculate the equivalent (or total) resistance, and any currents for each of the following configurations:

a. series circuit

b. parallel circuit

c. Series-parallel combination where R1 and R2 are in parallel and that combination is in series with R3.

A solid, homogeneous sphere with a mass of m₀, a radius of r₀ and a density of ρ₀ is placed in a container of water. Initially the sphere floats and the water level is marked on the side of the container. What happens to the water level, when the original sphere is replaced with a new sphere which has different physical parameters? Notation: r means the water level rises in the container, f means falls, s means stays the same.

r f s The new sphere has a mass of m = m₀ and a radius of r > r₀.
r f s  The new sphere has a density of ρ = ρ₀ and a mass of m > m₀.
r f s  The new sphere has a radius of r < r₀ and a density of ρ = ρ₀.

A solid, homogeneous sphere with a mass of m₀, a radius of r₀ and a density of ρ₀ is placed in a container of water. Initially the sphere floats and the water level is marked on the side of the container. What happens to the water level, when the original sphere is replaced with a new sphere which has different physical parameters? Notation: r means the water level rises in the container, f means falls, s means stays the same. Combination answers like 'f or s' are possible answers in some of the cases.

r f s r or s f or s The new sphere has a radius of r < r₀ and a mass of m = m₀.
r f s r or s f or s  The new sphere has a mass of m < m₀ and a radius of r = r₀.
r f s r or s f or s  The new sphere has a density of ρ < ρ₀ and a radius of r = r₀.

A solid, homogeneous sphere with a mass of m₀, a radius of r₀ and a density of ρ₀ is placed in a container of water. Initially the sphere floats and the water level is marked on the side of the container. What happens to the water level, when the original sphere is replaced with a new sphere which has different physical parameters? Notation: r means the water level rises in the container, f means falls, s means stays the same. Combination answers like 'r or f or s' are possible answers in some of the cases.

r f s r or s f or s r or f or s The new sphere has a density of ρ > ρ₀ and a radius of r < r₀.
r f s r or s f or s r or f or s  The new sphere has a radius of r > r₀ and a mass of m < m₀.
r f s r or s f or s r or f or s  The new sphere has a density of ρ > ρ₀ and a mass of m < m₀.

Suppose you start riding your bicycle from rest, and the wheels reach an angular speed of 354 rpm in 5.4 seconds. How many complete revolutions do the wheels make in this time?

A negative charge Q1 = -5.00 mC is located at a point X1 = -1.00 m, a positive charge Q2 = 8.00 mC is located at a point X2 = 3.00 m and a negative charge Q3 = -12.00 mC is located at a point X3 = 7.00 m.a. Draw free body diagrams for the electric force acting on Q1, Q2, and Q3.b. Find the magnitude of the force between Q1 and Q2.c. Find the magnitude of the force between Q1 and Q3.d. Find the magnitude of the force between Q2 and Q3.e. Find the magnitude and direction of the net electric force on charge Q1.f. Find the magnitude and direction of the net electric force on charge Q2.g. Find the magnitude and direction of the net electric force on charge Q3.

1. The Cosmic Microwave Background and Prizewinning Cosmology

(a) How can we see the CMB if the photons were released 14 billion years ago? Shouldn't those photons be billions of light years away by now?

(b) Who was awarded the 2006 Nobel Prize for Physics? What was the prize for-- what were the results, and how were they obtained?

(c) Why are these results from part (b) important?