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Question: A car (m=2000 kg) is parked on a road that rises 20 degrees above the horizontal. What are the magnitudes of (1) the normal force and (2) the static frictional force that the ground exerts on the tires?
q1. a rightward force of 302 n is applied to a 28.9 kg crate to accelerate it across the floor. the coefficient of
An office window has dimensions 3.5 m by 2.3 m. As a result of the passage of a storm, What net force pushes out on the window
A particle of mass 3.67 MeV/c2 and kinetic energy 11.01 MeV collides with a stationary particle of mass 11.01 MeV/c2. Find the mass of the system after the collision
A chain consisting of five links, each of mass 0.120 kg, is lifted vertically with a constant acceleration of a = 4.3 m/s2. Find the magnitude of this force
The electric field in a velocity selector is generated by two parallel plates separated by 5.00 cm with a potential difference of 90.0 V. at what speed will particles pass through undeflected
A uniform thin rod of mass 4.19 kg pivots about an axis through its center and perpendicular to its length. What must the length of the rod be so that the moment of inertia of the three-body system with respect to the described axis is 0.977 kg·m2
A spring that has a force constant of 1000 N/m is mounted vertically on the ground. By what distance does the spring compress
Light of wavelength 650 nm is incident above at an angle of 90 upon a glass plate as shown below. The glass plate rests on top of a second plate so that they touch at one end and are seperated by .0325mm at the other end as shown in the figure.
A uniform electric field of magnitude 395 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. What is the work done by the field on the electron
What is the magnitude of the acceleration of a speck of clay on the edge of a potter's wheel turning at 45 rpm (revolutions per minute) if the wheel's radius is 25.6 cm
A Van de Graa? generator has a potential di?erence of 2.35 MV between the belt and the outer shell. What minimum power is needed to drive the moving belt
F = G.Mm/r2 where F is the gravitational force, M and m are masses, and r is a length. Force has the SI units kg · m/s2. What are the SI units of the proportionality constant G
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