HELP ME take your time What does a 1kg pineapple weigh on Mars if 3397000m is its radius, and 6.42x10^23 kg is its mass?

2. An automobile rounds a curve of radius 75.0m on a flat road at a speed of 24m/s. What centripetal acceleration is necessary to keep the car on the curve?

3. The fastest human footspeed record is by Usain Bolt at 44.64 m/s. What centripetal force would be needed for him to maintain this speed around the curve of the track if the curve has a radius of 36.5 m and his mass is 94 kg?

In a wind tunnel the speed changes as the cross sectional area of the tunnel changes. if the speed in a 6' x 6' square test section is 100 mph, what was the speed upstream of the test section where the tunnel measured 20' x 20'? use conservation of mass and assume incompressible flow. conservation of mass requires that as the flow moves through a path or a duct the product of the density, velocity and cross sectional area must remain constant; i. e., that ova-constant. a model is being tested in a wind tunnel at a speed of 100 mph if the flow in the test section is at sea level standard conditions, what is the pressure at the model's stagnation point? (a) the tunnel speed is being measured by a pitot-static tube connected to a u- tube manometer. what is the reading on that manometer in inches of water? (b) at one point on the model a pressure of 2058 psf is measured. what is the local airspeed at that point?

Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud

The substances that are necessary for producing of certain hormones and that store and transport vitamins