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A dartboard with a mass of 2.20 kg is suspended from the ceiling such that it is initially at rest.
A 0.030-kg dart is thrown at the dartboard with a velocity of 1.3 m/s.
After the dart hits the dartboard, the dart and the board initially move with a velocity of 0.025 m/s.
How much kinetic energy is lost in the system?
A coil of inductance 100 mH and resistance 800Ω is connected in parallel with a variable capacitor across a 12V, 5kHz supply. Determine for the condition when the supply curre
In an isothermal process, the temperature of body always same throughout the process. As the internal energy of a system depends only on its temperature, thus there is no modificat
Give the basic construction of pentode Ans: Construction of Pentode: Constructional details of a typical pentode are demonstrated in fig. (a) and fig. (b) Pentode comp
Chemical changes during: Discharging: The current will flow from positive to negative plate in the external circuit. As current now enters by negative plate, the negative
What are the main types of laser? Types of lasers are as illustrated below: a. Solid State lasers b. Raman laser c. Semiconductor lasers d. Dye lasers e. Gaseous
A sled and its rider are perched at the top o a hill that is 35 m tall. If the gravitational potential energy is 3.0 x 10 4 J. What is the weight of the sled and rider?
Transform kinetic energy into vertical potential energy A pole vaulter performs the extraordinary feat of converting his forward kinetic energy to vertical potential energy. Us
The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Where is the image of this object formed? Ans: The image of given ob
Magnetic poles: The two regions near the ends of a magnet at which the attracting forces appear to be concentrated are called the magnetic poles. The pole (when freely suspende
Q. Tritium has a half life period of 12.5 years. What fraction of the sample will be left over after 25 years? HLP = 12.5 years Number of HLPs in 25 years = 25 / 12.5 =2
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