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Question1
Man pushing a mop across a floor causes it to undergo two displacements. First has the magnitude of 154 cm and makes the angle of 126° with a positive x axis. The resultant displacement has the magnitude of 147 cm and is directed at an angle of 36.0° to positive x axis. Find out the magnitude and direction of the second displacement.
Question2
A 9.00- bullet, affecting horizontally with an initial speed, embeds itself in a 1.20- pendulum bob that is firstly at rest. The length of pendulum is = 0.730. After the collision, pendulum swings to one side and comes to rest while it has gained a vertical height of 14.0
Is kinetic energy of the bullet-bob system immediately after the collision greater than, less than, or the similar as kinetic energy of the system just before collision?
The Moon moves noticeably on the celestial sphere over the space of a single night. To show this, calculate how long it takes the Moon to move through an angle equal to its own angular diameter (0.5 degrees) against the background of the stars. Gi..
Charge A and charge B are 2.5 m apart. Charge A is 1.4C and charge B is 2.5C. Charge C, which is 2.0 C, is situated between them and force on charge C is zero. How far from charge A is Charge C.
If the coefficient of friction between the block and the floor is 0.40, what is the mass of the block.
A disc spins at 20 [rpm]. Calculate the period of rotation (which is the time interval required for 1 revolution)
If the amplitude of a particle in simple harmonic motion is doubled, how are the total energy and maximum speed affected
Three equal point charges, each with charge 1.30 mu C, are placed at the vertices of an equilateral triangle whose sides are of length 0.600 m. Evaluate the electric potential energy U of the system?
A 0.250-kilogram cup at 15 °C is filled with 0.100 kg of boiling coffee. The cup and the coffee come to thermal equilibrium at 75 °C. what is the specific heat of the cup material
A certain airplane has a speed of 250.0 km/h and is diving at an angle of 30.0° below the horizontal when the pilot releases a radar decoy. The horizontal distance between the release point and the point where the decoy strikes the ground is 700 m..
What intensity level of the horn's sound is observed by somebody waiting at an intersection 58m from the train.
A cylinder of length L = 18 cm and radius R = 5.4 cm has its center at the origin and its axis along the x axis such that one end is at x= +9 cm , What is the net charge inside the cylinder
A 80 kg man is ice-skating due north with a velocity of 6.0 m/s when he collides with a 35 kg child. find the magnitude of the child's velocity just before the collision
Two particles of masses M1 = 93000 kg and M2 = 4200 kg are initially at rest an a distance 148.1 km apart. The masses are let go, and as a result of the gravitational force the two masses move towards each other.
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