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what is the calculation and errors of simple pendulum expriment ?
A water pump lifts water from a level 10 m below the ground.
Water is pumped at a rate of 30kg/minute with negligible velocity and friction. Calculate the minimum horsepower the engine should have for this
You have five 10.0 F capacitors. Show all possible connections of all five capacitors to produce an equivalent capacitance of
a. 50.0 F
b. .5 F
c. 35 F
What happens when a long, straight conductor is moved through a uniform magnetic field at constant velocity? Assume that the conductor moves perpendicular to the field.
A -6 nC particle is moving at 4.0x10^4m/s along the positive z-axis.It passes a region undeflected where there is uniform electric and magnetic fields.The electric field is 5.75 x10^5 N/C along the negative x-axis.What is the magnitude and direction of the magnetic field.
: Please provide the appropriate right answer/ answers from the choices given below and provide an explanation for your choice, as well:
I. Which of the following phenomena do not affect the polarization of an electrode?
a. Diffusion of an reactant to the electrode surface
b. Diffusion of the product from the electrode surface
c. Convective limitations in the cell
d. Standard Cell Potential of the redox couple
e. Significant Activation barrier to the charge transfer
A student eat a dinner containing 8.0×10^6J of energy and wishes to lift an object in a gym of 60kg .How mang times will he lift this object to expand this much energy if he lift this object in a distance of 2.0m
Neutron stars are some of the densest objects in the universe. They form during supernova ex-
plosions and are very small compared to other astronomical objects. You can assume 5 x 10^17
kg/m3 as the average density of a neutron star. The Earth has a total mass of about 5.97 x 10^24 kg.
What would be the diameter of the Earth if it had the density of a neutron star?
Please answer with explanation.
A straight bar 500mm long is 25 mm in diameter for the first 200mm length and 15mm diameter for the remaining length if the bar is subjected to an axial pull of 15 Kant what is the deformation of the bar
For the circuit on the right, find the following quantities:
a. The circuit current.
b. The total resistance of the circuit.
c. The value of the unknown resistance, R.
d. The voltage-drop across all resistors in the circuit.
e. The power dissipated by all resistors.
100Ω
150Ω
E=25V
Rt= 800Ω
30Ω
R
