A cat leaps from the ground onto a table that is 1.50 m high. The cat leaves the ground at 8.00 m/s at an angle of 60o from the horizontal.

1. How much time was the cat in the air?

2. Find the cat’s velocity just before it lands on the table?  

In figure, a wheel of radius 0.30 m is mounted on a frictionless horizontal axle. A massless cord is wrapped around the wheel and attached to a 3.0 kg box that slides on a frictionless surface inclined at angle θ = 29° with the horizontal. The box accelerates down the surface at 1.9 m /s ². What is the rotational inertia of the wheel about the axle? (Your answer must be in units of kg.m ² and include 3 digit after the decimal point. Maximum of 5% of error is accepted in your answer. Take g=9.80 m /s ².)

a) How does the magnetic flux through the loop changes as the magnet rotates. Is the flux maximal when the magnet is horizontal or vertical on the screen? Why?

b) How does changing the magnetic flux works to create an emf (potential difference) in the coil, which alternates over time (use the Faraday’s law equation)?

When an AC source is connected across a 11.5-? resistor, the rms current in the resistor is 8.66 A.

(a) Find the rms voltage across the resistor.
V

(b) Find the peak voltage of the source.
V

(c) Find the maximum current in the resistor.
A

(d) Find the average power delivered to the resistor.
W

A tank initially contains 300 gallons of a salt solution made by dissolving 30 pounds of salt in water. A solution containing 0.6 pounds of salt per gallon enters the tank at a rate of 5 gallons per minute. A drain is opened at the bottom of the tank through which the well stirred solution leaves the tank at the same rate of 5 gallons per minute. Let y(t) denote the amount of salt (in pounds) which is in the tank at time t. (A) find out y(t)?( B) how much salt is in the tank after 1/2 hour?

from glass membrane electrode , Identify all of the potentials associated with your cell, and indicate the potential value which is not constant.

A girl throws a rock horizontally, with a velocity of 10 m/s, from a bridge. It falls 20 m to the water below. a) How long does it take for the rock to reach the water? b) How far does the rock travel horizontally before striking the water, assuming negligible air resistance? c) what is the final horizontal velocity of the ball ? d)What is the final vertical velocity of the ball? e) the magnitude of the final velocity of the ball,

Physics University 1

For a capacitor of area 100 mm ´100 mm operated at T = 300K, with F_M = 5.2 eV, x_ox = 3 nm, and

N_D = 10¹⁷ cm^-3

a) Calculate the flat band capacitance and treshold voltage

b) Draw the low frequency and high frequency CV curves

Please solve it completely and step by step. I will rate the question

If somebody could assist me with the following questions, that would be greatly appreciated! Thank you!

1. How can fluorescence be used to determine the concentration of a molecule?

2. Fluorescence and absorbance comparison (energy, wavelengths)?

3. Why and how we can determine quinine concentration? (include wavelengths used)

4. Why is the detector in a fluorometer placed at a specific angle to the incident beam?

What is the sequence of movements of the standing bow pulling pose?

Why is there uneven spacing in the P and R branches of a vibration rotation spectra?

An ideal gas that goes through a cyclical process on a PV diagram and returns to the location on the PV diagram where it began. analyze changes in temperature and thermal energy of the gas change during the cycle. Analyze transfers of energy through heat and work during various stages of the cycle.

note: including formulas in the analysis would be helpful.

Two protons are brought from very far apart to a distance of 1×10−15 m and kept there. Then, an electron is brought to point A, equidistant from both protons and forming an equilateral triangle with the two protons. The electron is let go and passes through point B, the midpoint between protons. Determine: a. The electrostatic force between proton? b. The electric field at points A and B due to the protons

a one-dimensional box of length 2.7 nm

(1) Calculate the wavelength of electromagnetic radiation emitted when the photon makes a transition from n = 2 to n = 1. Answer in units of µm.

(2) Calculate the wavelength of electromagnetic radiation emitted when the photon makes a transition from n = 3 to n = 2. Answer in units of µm

(3) Calculate the wavelength of electromagnetic radiation emitted when the photon makes a transition from n = 3 to n = 1. Answer in units of µm.