The pressure differential across a 1.0 m x 2.0 m air door is 400 Pa. What is the force (N) and load (kg) acting on the door?
The pressure differential across a 1.0 m x 2.0 m air door is 400 Pa. What...
The pressure differential across a 3.0 m x 5.0 m bulkhead is 900 Pa. What is the effective load on the bulkhead in kg?
The only force acting on a 1.0-kg object moving along the x axis is shown. If the velocity Vx is +2.0 m/s at t = 0, what is the velocity at t = 4.0 s?
A 2.0 kg block starts from rest. It is pushed across a rough horizontal surface by a force F (magnitude of F = 8.0 N) directed at a 40° angle as shown. The block is found to accelerate along the surface at 2.0 m/s2. Prove that there is a frictional force acting on the block F-8.0 N 40° 40 2.0 kg
Roof 123 A storm blows wind across the top of a roof at a speed of y-26.5 m/s. Assume the air on the lower side of the roof (inside) is at rest and the roof is flat and has an area A- 39.3 m². The density of air is 1.28 kg/m". 1) What is the pressure differential across the top and bottom of the roof? Pa 2) What is the net lift force on the roof due to the storm?...
10. Air pressure inside a research submarine is 101,000 Pa. The total pressure outside the submarine is 201,940 Pa. What is the net force on a window with an area of 0.090 m´?
What is the total force acting on the outside of the spherical submarine of diameter 2.0 m when it is 1000 m below the surface of the ocean? The pressure inside is 1.0 ATM and the density of seawater is 1020 kg / m3
A piece of copper is surrounded by air at a pressure of 1.01 x 105 Pa. The copper is placed into a chamber where the pressure is increased to 2.02 x 105 Pa. Determine the fractional change ??/K) in volume of the copper. The bulk modulus of copper is 1.3x 101 N/m2
A pressure difference of 2.0 × 103 Pa is needed to drive water through a pipe whose radius is 3.9 × 10-3 m. The speed of the water in the pipe is 6.70 ms-1. The viscosity of water is 1.0 × 10-3 Pa·s. What is the length of the pipe?
The only force acting on a 1.0-kg object moving along the x axis is shown. If the velocity Vx is +2.0 m/s at t= 0, what is the velocity at t = 4.0 s? F. (N) 16 8 0 +(s) 21-3.1.4 -8 +6.0 m/s +5.0 m/s +2.0 m/s +4.0 m/s +7.0 m/s
A professor's office door is 0.94 m wide, 2.0 m high, 4.0 cm thick; has a mass of 25 kg , and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. When the door is open and at rest, the door closer exerts a torque of 5.1 N⋅m . If you let go of the open door, what is its angular acceleration immediately afterward? What is the moment of inertia of...