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An object of mass m = 3.3 g and charge Q = +60 µC is attached to a string and placed in a uniform electric field that is inclined at an angle of 30.0° with the horizontal. The object is in static equilibrium when the string is horizontal. (a) Find the magnitude of the electric field. N/C (b) Find the tension in the string.
A super tanker with the mass of 3.36 × 109 kg is moving with a constant velocity. Its engines generate a forward thrust of 4.11 × 105 N. Determine (a) magnitude of the resistive force exerted on the tanker by the water and (b) magnitude of the upward..
In a student experiment, a constant-volume gas thermometer is calibrated in dry ice (?78.5°C) and in boiling pentane (36.1°C). What pressure would be found at the boiling point of water
A 38 ohm resistor is made from a coil of copper wire whose total mass is 11.2 g. Find out the length and diameter of the wire.
Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), each with a mass of 3.27 × 10-25 kg. evaluate the radius of the path
How much time would be required to stop a 2,000kg car that is moving at 80.0 km/hr if the braking force is 8,000N? If a space probe weighs 39,200N on the surface of the earth, what will be the mass of the probe on the surface of Mars?
A 5.0 kg sled initially at rest on a level snow-covered road, Find the kinetic energy of the sled after it had been pulled for a distance of 6.0 m
Calculate the frequency of the tone perceived by the person if he is moving away from the speaker with a speed of 48 m/s
A standing wave pattern on a string is described
Two parallel metal rods form a plane inclined at 20 degrees to the horizontal. The upper end of the rods are connected together by a resistor of 166ohms, What is the maximum speed of the bar
Light precedes through three polarizing sheets. Unpolarized light enters the 1st sheet and the resultant vertically polarized beam continues through the 2nd and 3rd. What percent of the original intensity emerges from filter #1
We would like to compare the angular momentum of Mars about its axis of rotation with that of Earth's. The mass of Mars is 11% that of Earth, with a radius 53% that of Earth, and a rotational period 103% that of Earth. Assuming both planets to be uni..
Calculate the acceleration on the radio. The rms voltage across a 5.02 Ω resistor is 34.7 V. Find the maximum instantaneous current by the resistor.
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