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1. A ball of mass 0.1 kg, initially at rest, is dropped from height of 1 m. Ball hits the ground and bounces off the ground. Upon impact with the ground, its velocity reduces by 20%. The height (in m) to which the ball will rise is:
1) 0.61
2) 0.62
3) 0.63
4) 0.64
2. A mass m1of 100 kg travelling with a uniform velocity of 5 m/s along a line collides with a stationary mass m2of 1000 kg. After the collision, both the masses travel together with the same velocity. The coefficient of restitution is:
1) 0.6
2) 0.1
3) 0.001
4) 0
3. A fighter plane flying in the sky dives with a speed of 120 m/sec in a vertical circle of radius of 100 m. Mass of the pilot is 80 kg. Force withwhich the pilot presses the seat at the highest position is :
1) 10720 N
2) 15000 N
3) 8000 N
4) 12720 N
4. Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base,is __________ than that passing through its C.G. and parallel to the base.
1) Nine times
2) Six times
3) Four times
4) Two times
5. A simple pendulum of length of 5 m, with a bob of mass 1 kg, is in simple harmonic motion. As it passes through its mean position, the bob has
A π+ meson of rest mass 139.6 MeV collides with a neutron (rest mass 939.6 MeV)stationary in the laboratory system to produce a K+ meson (rest mass 494 MeV)and a hyperon (rest mass 1115 MeV). What is the threshold energy for this reaction in the labo..
A 6.7uC particle moves through a region of space where an electrice field of magnitude 1300 N/C point in the positive x direction, find the components of the particle's velocity
Sketch the rays reflected from the bottom surface of the glass and emerging back into the air through the upper surface of the glass. Explain your reasoning.
questiona solenoidal coil with 24 turns of wire is wound tightly around another coil with 350 turns. the inner solenoid
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To stretch a certain spring by 2.20 from its equilibrium position requires 7.00 of work. What is the force constant of this spring
For the configuration shown below, suppose that a = 5.00 cm, b= 20.0 cm, and c = 25.0 cm. Furthermore, suppose that the electricfield at a point 10.0 cm from the center is 3.60 × 103 N/C radiallyinward, while the electric field at a point 50.0 cm ..
In the Bohr theory of the hydrogen atom, an electron moves ina circular orbit about a proton. The radius of the orbit is0.53*10^-10m. Find the electrostatic force acting on each particle
An isolated, irregularly shaped piece of platinum carries -8.59 × 10-9 C of charge and is in electric equilibrium. The size of this body is about 4 mm. Calculate the potential at a distance of 5.63 m from the center of the charged piece of platinum?
a tube that is open at both ends is filled with an unknown gas. the tube is 190 cm long and 3 cm in diameter. by using
A 1.1 kg particle-like object moves in a plane with velocity components vx = 20 m/s and vy = 50 m/s, What is its angular momentum relative to the origin at this moment
he rate P at which a star radiates energy in the form of electromagnetic waves can be calculated using the equation, Calculate a numerical value for the intensity of sunlight
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