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A ball m=1kg rolling without slipping on a flat surface with v=.1m/s strikes the wall after which v=.08m/s. What is the amount of heat generated due to impact?
The entrance to a large lecture room consists of two side-by-side doors, one hinged on the left and the other hinged on the right. Each door is 0.740 m wide. Sound of frequency 708 Hz is coming through the entrance from within the room.
Determine and explain the ways a corporation can use advanced Excel tools such as MIN and MAX statement, conditional formatting, and additional tools that have found to manage their business finances.
Two charged spherical conductors are connected by a long conducting wire, and a charge of 15 μC is placed on the combina- tion. One sphere has a radius of 4.05cm and the other a radius of 6.05cm.
The concrete wall of a building is 0.10m thick. The temperature inside the building is 20.0 °C, while the temperature outside is 0°C. Heat is conducted through the wall.
A 7.5 nC charge is located 1.8m from a 4.2 nC charge. Find out the magnitude of the electrostatic force that one charge exerts on the other. Is the force attractive or repulsive.
The length of the mercury column is 4.0cm in pure melting ice and 28.0 cm in the steam. Compute the temperature for a length of 22.0.
An 18 g rifle bullet travelling 180m/s buries itself in a 3.6kg pendulum hanging on a 2.8 m long string, which makes the pendulum swing upward in an arc. Verify the horizontal component of the pendulum's displacement.
An 88 g arrow is fired from a bow whose string exerts the average force of 110 N on the arrow over a distance of 78.00 cm. What is the speed of the arrow as it leaves the bow.
If a car travelling at 52 km/h will skid 18 m when its brakes lock, how far-off will it skid if it is travelling at 120 km/h when its brakes lock.
A force vector has a magnitude of 584 newtons and points at an angle 45o of below the positive x axis. What are (a) x scalar component and (b) y scalar component of the vector.
A 5.00 g charged insulating ball hangs on a 27.0 cm long string in a uniform horizontal electric field. Given the charge on the ball is 2.00 ?C , find the strength of the field. The angle that the string makes with the vertical is 8.00° N/C.
A 1500 -kg automobile travels at a speed of 75 -km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop.
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