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The surface of the Sun has a temperature of about 5800 K. The radius of the Sun is 6.96 x 108 m. Calculate the total energy radiated by the Sun each second. Assume the emissivity of the Sun is 0.965
If you are in motion with an acceleration of 2 m/s2, this means that
a. your speed increases 2 m/s every second
b. your displacement increases by 2 m every second
c. your distance increases by 2 m every second
d. your acceleration increases 2 m/s every second
What force must be exerted on the master cylinder of a hydraulic lift to support the weight of a 2500-kg car (a large car) resting on the slave cylinder? The master cylinder has a 4.00-cm diameter and the slave has a 25.0-cm diameter.
A block of aluminum measures 4.0 cm x 5.0 cm x 2.0 cm is completely immersed in a tank of water.
Calculate the buoyant force and the mass of the displaced water (Remember the density of water is 1 g/mL) (g=10m/s2) Noise canceling earphones are an example of
A. Constructive interference
B. Destructive enterference
C. Beat
D. Resonance
A copper wire that has a radius of 3 cm has a uniform charge density of 12 ΞΌC/m^2.Determine the total charge present in a 1.0-m long section of the copper wire.
Can you help me solve this question #Assignment# A spring of Force constant 1500Nm-ΒΉ is acted upon by a constant force of 45N . calculate the potential energy stored in spring
(a) Consider a dipole in which a Point (π) is located inline with
+ive charge as shown in below F
the formula for electric field intensity (πΈβ ) at point π.
(b) How the formula will change if π is far away from the +ive
charge.
(c) How do you relate the formula obtained in part (b) with that we
have derived in class in which π is present vertically above at
the axis of the dipole.
(a) Letβs consider a two-dimensional (2-D) disk on which +ive charge is uniformly
distributed as shown in below figure. Derive the expression for πΈβ at point π due
to this charged disc
Aluminum metal are in Fcc structure has a lattice constant a= 2Γ . Cal Fermi velocity and Fermi Wave.
(a) Calculate the electric potential of Q= 25Γ10^-9 at 1m
(b) Calculate the electric potential of Q= 25Γ10^-9 at 2m
