Classical Mechanics Answers

You're travelling in a straight line. With a constant acceleration of 0.50 \text{ m}\cdot{s}^{-2}

0.50 m⋅s−2

, how long does it take to accelerate from 13 \text{ m}\cdot \text{s}^{-1}

13 m⋅s−1

to 18 \text{ m}\cdot \text{s}^{-1}

18 m⋅s−1

, and how far do you travel while doing so?

Time = _____ seconds

Distance = ______ metres.

A grandfather clock on earth has a pendulum with a period of 1.0. Calculate the length of the pendulum

 Assume that yo-yo drops 1.0 m vertically from its owner's hand at a uniform speed of 0.80 m/s along its string. At the end of the string, it changes direction in 0.10 s and rises toward the owner's hand at a uniform speed of 0.60 m/s. Compute the average acceleration of the yo-yo at the bottom end of the string as it changes direction.

A mass m = 0.1 gram is hanged on a string inside a bus. The bus is accelerating at a constant rate of 5 m/s^2. At what angle will the mass deflect from the vertical? (in degrees)?

Determine the enthalpy of a saturated steam at 30𝑜 𝐶 using the non-flow energy equation 

and the tabulated properties of pressure, specific volume and internal energy. Compare 

the result with the tabulated value of ℎ𝑔. Solve the same problem using Mollier chart.

A vector 𝑹̅ has a direction of 30o with respect to the y-axis. Draw this vector and find its x and y components if its magnitude is 7 m. 

. A rigid tank contains 10 𝑘𝑔 of water at 90𝑜 𝐶. If 8 𝑘𝑔 of the water is in the liquid form

and the rest is in vapour form, determine:

i. the pressure in the tank,

ii. the volume of the tank.

1.     A stone is thrown vertically upward from ground level. Six seconds later, a second stone is also thrown vertically upward from the same point with a velocity of 40 m/sec. If the two stones meet 30 meters above the ground with the first stone already going down, with what velocity was the first stone thrown?

Experiment 3

Aim: To be able to understand, visualize and analyze geologic maps.

Apparatus

✓ Geology map ✓ Pencil

✓ Paper

✓ Protractor

✓ ruler

methods

1. Draw the topographical profile A-B using the contour lines

2. Draw a geological cross section along the profile using a vertical scale of 1cm : 100m.

3. Interpret the sub-surface geology by constructing appropriate geological boundaries.

4. Label the fold axis on your cross section

Additional Questions

1. What kind of fold is present? Explain how you could interpret this from the map only.

2. What is the relative age of the dolerite, shale and coal seam?.

3. A chilled margin was observed in the dolerite. Explain what a chilled margin is and how it occurs.

4.write a brief geological history of the area.

Find the charge and current at time t in the circuit, at R = 40 ohms, L = IH, C = 16X10^-4 F

E(t) = 100cos(10)t, initial charge and current are both zero.