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a. When a person leaves his home for sightseeing by his car, the meter reads 12352 km. When he returns home after two hours the reading is 12416 km.
(a) What is the average speed of the car during this period ?
(b) What is the average velocity ?
b. An athlete takes 2"0 s to reach his maximum speed of 18"0 km/h. What is the magnitude of his average acceleration ?
c. The acceleration of a cart started at t = 0, varies with time as shown in figure (3-E2). Find the distance travelled in 30 seconds and draw the position-time graph.
a 26-cm-long wire with a linear density of 15 gm passes across the open end of an 87-cm-long open-closed tube of air.
A 5.0 kg bundle starts up a 30° incline with 128 J of kinetic energy. How far will it slide up the plane if the coefficient of friction is 0.40
If the radius of the equipotential surface of a point charge is 21.0m and is at a potential of +3.50kv
The intensity of an earthquake waves passing though the Earth is measured to be 2.0 x 10^6 J/m^2xs at a distance of 48km from the source. What was its intensity when it passed a point only 1.0km from the source
Explain biot savart law obtain expression for magnetic field at the centre of circular loop - Explain the construction and working of compound microscope / astronomical telescope obtain expression for magnifying power
A boat moves through the water with two forces acting on it. One is a 1800 N forward push by the water on the propeller, What will its velocity be at the end of that time
A 2.75 centimeter high object is located 3.5 centimeter in front of a concave mirror. If the image is 5.0 centimeter high and virtual, estimate what is the focal length of the mirror
An unknown liquid fills a cubical container of side length of 15cm. The mass of the liquid (excluding the container) is 3.11 Kg. What is the absolute pressure of the container
a spherical non-conducting shell of inner radius r1 10 cm and outer radius r2 15 cm carries a total charge q 15 oc
The magnetic field perpendicular to a circular wire loop 14.4 cm in diameter is changed from +0.35 T to -0.64 Tin 300 ins , where + means the field points away from an observer and - toward the observer. Calculate the induced emf. Express your answ..
on an ice rink a 3 kg object initially moving a speed of 5 ms strikes a 6 kg object initially at rest. afterwards the
In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to that inthe figure below and has a range of 25 m.
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