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You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 1.8×107 m. You have previously determined that the planet orbits 7.6×1011 m from its star with a period of 402 earth days. Once on the surface you find that the acceleration due to gravity is 46.5 ms2. What are the masses of (a) the planet and (b) the star?

A person ties a rock to a string and whirls it around in a verticle such that sometimes the rock is going straight upward and sometimes the rock is going straight down. She whirls the rock at the minimum speed (constant in time) such that the string is always taut (no sag). When is the tension the highest?

The horozontal surface on which the objects slide is frictionless. If F→=6.0 N and M=1.0 kg, what is the magnitude of the force exerted on the large block by the small block?

An object attached to the end of a string swings in a vertical circle ( R=1.20 m), as shown. At an instant when θ=30.00°, the speed of the object is 5.10 ms and the tension in the string has a magnitude of 20.00 N. (a) What is the mass of the object and (b) what are the magnitude and direction of the tangential acceleration of the object? If the speed of the object is 5.10 ms at an instant when θ=0.00°, (c) what is the magnitude of the tension in the string? If the magnitude of the tension in the string is 20.00 N at an instant when θ=270.00°, (d) what is the speed of the object? If the same particle with the same string is doing circular motion as shown in Fig. 2.2, (e) what is the speed of the particle? 

You have just delivered an infant and dark, thick meconium was present. While treating the child you decide the meconium needs to be cleared from the airway. Which of the following describes the appropriate procedure for this situation?

A radiographic film was performed on a COPD patient with air trapping. What would be apparent on a chest  radiograph? I. Presence of opacification II. Hyperlucency III. Flattened diaphragm IV. Infiltrates bilatreally

All of the following would be expected when assessing a pediatric patient with unstable supraventricular tachycardia EXCEPT

Which of the following would be normal and abnormal findings for a pregnant patient in their last trimester of pregnancy? (USE ALL CHOICES)

An object rests on a horizontal frictionless surface. A horizontal force of magnitude F→ is applied. This force produces an acceleration:

The drawing shows a 25.00 kg crate that is initially at rest on a floor. If F→2=10.00 N in Fig. 1.1 and the magnitude of the normal force on the crate is N→=270.00 N, (a) what is the magnitude of F→1? If F→2=10.00 N in Fig. 1.1 and the magnitude of the normal force on the crate is N→=287.04 N when the crate is at the verge of motion, (b) what is the coefficient of static friction between the crate and the floor? If the magnitude of F→2 in Fig. 1.1 is increased but the magnitude of F→1 is F→1=30.0 N and the coefficient of static friction between the crate and the floor is given by the result in (b), (c) what is the magnitude of force F→2 so that the crate is at the verge of motion? If the coefficient of kinetic friction between the crate and the floor is 0.875μs and the magnitudes of F→1 and F→2 in Fig. 1.1 are 30.00 N and 90.00 N, respectively, what is the acceleration of the crate? As shown in Fig. 1.2, if two forces F→1 and F→2 applied on the crate are parallel to the ground and the crate starts to move, (e) what are the magnitude and direction of the acceleration of the crate (Note: Fig. 1.2 is a top view of the crate.)