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Q1. A flight attendant pulls her 68.0 N flight bag a distance of 315 m along a level airport floor at a constant speed. The force she exerts is 40.0 N at an angle of 60.0° above the horizontal.
Q2. A 1600 kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16430 N on the sub, with a downward resistive force of 1000 N. What is the submarine's acceleration?
Q3. The drawing shows a person (weight W = 579 N, L1 = 0.838 m, L2 = 0.409 m) doing push-ups. Find out the normal force exerted by the floor on each hand and each foot, assuming that person holds this position.
A uniform density cube of mass m, side 2b, and center at C is placed on a fixed horizontal cylinder of radius r and center O in Earth's gravitational field.
What minimum constant acceleration does the aircraft require if the aircraft is to be airborne after a takeoff run of 222m.
Create a formula to get the time constant of the liquid level system shown in the below figure. When the avg. operating level is h0. The resistance R is linear.
What was the power of the motor that kept the wheel rotating at 6.5 rev/hr in spite of friction.
A 19 g bullet is shot into a 5270-g wooden block standing on a frictionless surface. The block, with the bullet in it, acquires a velocity of 2.4 m/s. compute the velocity of the bullet before striking block.
A long wire lying along the x-axis carries a current of 1.60 A in the +x direction. There is the uniform magnetic field present, given by B=0.003i + 0.004j + 0.002k, where i, j, k are the unit vectors along cartesian coordinate axes') in units of Tes..
What should the charge (sign and magnitude) of a particle of mass 1.21 be for it to remain stationary when placed in a downward-directed electric field of magnitude 610.
The manometer tube has an internal diameter of 0.5 cm and it is initially filled with water. Exactly 2 cm3 of an unknown liquid is then poured into one leg of the manometer, and a displacement of 5 cm between the surfaces is measured as shown. Fin..
What was the speed of the car before impact
How much energy is transferred to the water as heat
What is a vertical velocity of the ball
What is the tangential acceleration of a bug on the rim of an 11.00 in.-diameter disk if the disk accelerates uniformly from rest to an angular speed of 79.03 rev/min in 3.60 s? One second after the bug starts from rest, what is its centripetal accel..
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