Search & Filtering
a) A rod with a length of 35 cm has a charge of -2.5x10-9C. Find the electric field magnitude at a distance of 2 cm from the center of the rod.
b) Find the electric field E at 0.02m from the surface of a sphere with radius 0.1m if it has a superficial density charge +8x10-9C/m2
meterstick of mass 0.40 kg, a 0.60 kg object hung from the 20-cm mark and 0.50 kg mass hung from the 70-cm
mark of the meterstick.
The magnetic susceptibility χm of this alloy is,
a, 4000
b, 4560
c, 5400
d, 6000
applying Hund's rule, the ground state of Yb+3 and Tb+3 is:
a, 2F7/2 and 7F6
b, 2F5/2 and 7F5/2
c, 2F6 and 7F6
d, 2F7/2 and 7F3/2
The molar diamagnetic susceptibility of atomic hydrogen is
a, −2.3×10−6cm3/mole
b, −4.6×10−6cm3/mole
c, 2.3×10−6cm3/mole
d, 4.6×10−6cm3/mole
Then the value of ⟨r⟩ is given by
a, 5a02
b, 2a02
c, 4a02
d, 3a02
Typhoon Seroja is estimated to be 100.0 km SE of Jakarta as of 4 AM today. At 5 Am, it will be moving 50.0 km W before moving 60.0 km 40OW of N. At 10 AM, it will be heading 40.0 km 30O N of W and at 5 pm, it will be moving 20.0 km N. Find the % error using the measured value (magnitude of VR
obtained from head-to-tail method) as x and the computed value (magnitude of VR obtained from component method) as the true or theoretical value (x1).
Typhoon Seroja is estimated to be 100.0 km SE of Jakarta as of 4 AM today. At 5 Am, it will be moving 50.0 km W before moving 60.0 km 40OW of N. At 10 AM, it will be heading 40.0 km 30O N of W and at 5 pm, it will be moving 20.0 km N. Solve for the % difference between your answers (Use the
magnitude of VR obtained from both methods)
2. Since astronauts in orbit are apparently weightless, a clever method of measuring their masses is needed to monitor their mass gains or losses to adjust diets. One way to do this is to exert a known force on an astronauts and measure the acceleration produced. Suppose a net external force of 50.0 N is exerted and the astronaut's acceleration measured to be 0.893 m/s, (a) calculate her mass with solution. (b) by exerting a force on the astronaut, the vehicle in which they orbit experiences an equal and opposite force. Discuss how this would affect the measurement of the astronaut's acceleration. Proposed a method in which recoil of the vehicle is avoided. Write your answers to the space provided below.
Typhoon Seroja is estimated to be 100.0 km SE of Jakarta as of 4 AM today. At 5 Am, it will be moving 50.0 km W before moving 60.0 km 40OW of N. At 10 AM, it will be heading 40.0 km 30O N of W and at 5 pm, it will be moving 20.0 km N. Trace the path of the path of the typhoon using the head-to-tail method
#340153 on Dec 2023