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The drawing shows a person (weight W = 598 N, L1 = 0.849 m, L2 = 0.398 m) doing push-ups. Find the normal force exerted by the floor on each hand and each foot, assuming that the person holds this position.
force on each hand N
force on each foot N
Find out the maximum altitude reached by the rocket.
It walks 2.1 m along the boat toward shore and then stops. Assuming no friction between the boat and the water, find out how far the dog is then from the shore.
According to the Bohr model, a hydrogen atom in its lowest energy state has a nucleus consisting of a single proton, What is the magnitude of the "current" flowing around the nucleus
q1. consider a 3.0kg ball and a 5.4kg ball in free fall.what is the net force performing on each?what is the
A string with a length of 2 m resonates in three loops as shown above. The string linear density is 0.05 kg/m and the suspended mass is 1.5 kg. What is the frequency of oscillations
An oscillator with a mass of 420 g and a period of 0.900 s has an amplitude that decreases by 1.90 percent during each complete oscillation.
Two point charges -90.0 mC and +40.0 mC, fixed on the x-axis, At what point along x-axis is the electric field zero
A planet Z has a hole bored in it at its equator, and a shaft of light from it's star goes straight down that hole to the bottom, what is the circumference and radius of planet Z
When a potential difference of 168V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of34.0nC/cm2. What is the spacing between the plates?
A setup similar to the one shown in the figure below is often used in hospitals to support and apply a horizontal traction force to an injured leg. What is the traction force exerted to the right on the leg
A 1200-turn coil of wire that is 2.1 cm in diameter is in a magnetic field that drops from 0.14 T to 0 T in 12 ms. What is the emf of the coil
An automobile with 0.250 m radius tires travels 60,000 km before wearing them out. How many revolutions do the tires make
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