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Find the magnitude of a electric dipole formed by an electron and proton separated by a distance of d=4.3nm. The charge of the proton and electron is 1.6x10^-19 C.
The two angled ropes used to support the crate in the figure below an withstand a maximum tension of 1600 before they break What is the largest mass the ropes can support
A 42.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.28*10^2 m/s from the top of a cliff 140 m above level ground, What is the initial total mechanical energy of the projectile
each step in the process has a 60 yield. ch4 4 cl2 ----gt ccl 4hcl ccl4 2hf ---gt ccl2f2 2hclthe ccl4 formed in the
A radio telescope, whose two antennas are separated by 55 , is designed to get 3.0- radio waves produced by astronomical objects.
A positron (q = +e) moves at 4.3x10^7 m/s in a magnetic field of magnitude 0.52 T. The magnetic force on the positron has magnitude 2.0x10^-12 N. What is the angle between the velocity and the field?
A concave shaving mirror has a radius of curvature of +39.9 cm. It is positioned so that the (upright) image of a man's face is 1.54 times the size of the face. How far is the mirror from the face
The sound intensity in front of a loudspeaker diaphragm vibrating at 2kHz is 4.3 W/m^2, with an acoustic power output of 0.3W. Calculate the diameter of the diaphragm. in cm
an astronaunt of mass 67.3 kg is on a space walk to repair a communications satellite. suddenly she needs to consult
The diameter of the moon is 3.78x10^6 m. It subtends an angle of 0.00982 radians at the surface of the Earth. How far is the Moon from the Earth
a 5.0 micro c charge experiences a 0.45- n force in the positive direction. if this charge is replaced with a -2.7
A ball is thrown upward from the ground with an initial speed of 23.90 m/s; at = same instant, a ball is dropped from a building 16 m high. After how long will the balls be at the same height.
Suppose that the net horizontal force is because of rolling friction only and take the free-fall acceleration to be g = 9.80 m/s^2. What is the coefficient of friction for the tire under low pressure.
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