Suppose an urn contains 8 red,5 white and 7 blue marbles.a.If 3 marbles are drawn at random from the urn with replacement,what is the probability that three marbles are red?
A small object of mass m= 30 kg slides down a spherical dome of radius R=12 m without any friction. It starts off at the top (polar angle θ=0) at zero speed. Use g=10 m/s2. What is the magnitude of the force (in Newton) exerted by the dome on the mass when it is at θ...
The range R=23^2*sin(2*42)/9.8=53.68m
nice explanation. It should also be noted that the period and velocity are the same for any two points on earth through the tunnel. This concept is called "gravity train"
IT Shows us that the relationship between the distance and the time is linear and it tells us that the speed of the plane is constant
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
A person is riding on a flatcar traveling at a constant speed v1= 15 m/s with respect to the ground. He wishes to throw a ball through a stationary hoop in such a manner that the ball will move horizontally as it passes through the hoop. The hoop is at a height h=4 m above his...
What will the angle of refraction be for a ray of light passing from air into a sodium chloride crystal, if the angle of incidence is 60.0°? The index of refraction of sodium chloride is 1.53.
3m/sec*2m/sec= 6 m^2/sec^2 ??? Is this right??
The difference between consumption spending and disposable income is: