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Suppose you have two small "point" objects separated by a distance of 1 cm. Each object has a diameter of 10 −3 cm. One object has an excess of 3 × 10 10 electrons and the other has an excess of 2 × 10 10electrons on it. What is the electrostatic force that they exert on each other?
Suppose you connected an Am-meter in a series resistive circuit and turn on the source voltage, the meter reads zero. What do you think what will be possible reasons.
Draw a schematic diagram of a circuit consisting of a battery of three cells of
2 V each, a 5 Ω resistor, an 8 Ω resistor, and a 12 Ω resistor, and a plug key, all
connected in series.
What is the difference between potential barrier and potential well ? [Mark-4]
A wheel is accelerated from rest to 30 rad/s by torque of 200 Nm. The wheel turns
through 20 radians during this time.
Calculate the:
i. Angular acceleration
A basketball player practices shooting three-pointers from a distance of 7.50 m from the hoop, releasing the ball at a height of 2.00 m above the floor. A standard basketball hoop’s rim top is 3.05 m above the floor. Th e player shoots the ball at an angle of 48.0° with the horizontal. At what initial speed must she shoot to make the basket?
. A car undergoes a constant acceleration of 6.0 m/s2
starting from rest. In the first second, it travels ___?
1. What happens to the speed, does it slow down as different objects are added and the applied force is different? Why do you think this happens?
2. If forces are balanced, then the net force is zero. Is there a sum of forces, or net force here?
4 A uniform girder, of weight 14 kN and of length 8.0 m, rests horizontally on two wooden blocks, one at 1.0m from one end of the girder and the other at 0.5 m from the other end (as shown below). Calculate the force of the girder on each block.
Show that a monoatomic ideal gas undergoing adiabatic process PV^5/3 is equal to constant
#339914 on Dec 2023