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John and David are carrying Bob on a uniform horizontal board 8.9 m long which weighs 211 N. Bob weighs 542 N and is sitting 3.4 m from John. Determine the upward force exerted by both John and David.
Elucidate in detail the image of the "A" you would see as you look into the balloon with "A" facing you.
Using the kinematic equation, prove that if two balls are released simultaneously from table, one with zero velocity and the other with a horizontal velocity, they would both reach the ground at the identical time.
A 1350 kg cannon, which fires a 70 kg shell with a speed of 606 m/s relative to the muzzle, At what angle with the ground is the shell projected
The electric potential difference between two infinite, parallel metal plates is V. If the plates are separated by a distance L = 4.50 mm and the electric field between plates is E = 270 V/m, what is V.
A block with a mass of 1.45kg is pushed up an incline plane with a force in direction of the incline. How much work is necessary to push the block up the incline to a height of 2.08m
A spacecraft flies in the horizontal direction at a speed of v=0.980c, What is the slope angle to an astronaut on the spacecraft
A magnetic field is applied perpendicular to the plane of the disk. Assume that the field is 0.900 T, Find the emf generated between the brushes
q1.an automobile driver puts on brakes and decelerates from 68 mph to zero in 16 s. what distance does the car travel?a
For safety in climbing, a mountaineer uses a nylon rope that is 69 m long and 1.0 cm in diameter. Whilst supporting a 96-kg climber, the rope elongates 1.4 m. Find its Young's modulus.
A 70 turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 rad/s in a 1.15 T field, At what time is the peak emf first reached
A 75 kg ladder that is 3.0 m in length is placed against a wall at an angle theta. The center of gravity of the ladder is at a point 1.2 m from the base of the ladder. find the static frictional force between the floor and the ladder
The sound level 23 m from a loudspeaker is 65 dB. What is the rate at which sound energy is produced by the loudspeaker
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