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The solar year (equinox to equinox) is 365.2422 days, not 365. 25 days. Convert the difference to minutes and seconds. Show that adding a leap year every four years would still create a problem of overcorrecting by roughly one day every century.
The intensity of the sunlight that reaches Earth's upper atmosphere is approximately 1465 W/m2. What is the average energy density
A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. What impulse was given to the ball by the floor
A robot probe drops a camera off the rim of the 389 m high cliff on Mars, where the free fall acceleration is 3.7 m/s^2. Find out velocity with which it hits the ground and the time required for it to reach the ground.
An ambulance is generating a siren sound at a frequency of 2400 Hz. The velocity of sound is 34.0 m/s. What is the frequency of the siren perceived by the observer
Two automobiles of equal mass approach an intersection. One vehicle is traveling with velocity 14.9 m/s toward the east, What was the initial speed of the northward-moving vehicle
The charge +q travels a distance d from point A to point B in a uniform electric field of magnitude E, what is the work done by the field on the charge
On a workday the average decibel level of a busy street is 71 dB, with 100 cars passing a given point every minute. If the number of cars is reduced to 40 every minute on a weekend
q1. a proton travels with the speed of 8.34times105 ms at an angle of 32.3deg with the direction of a magnetic field.
The frequency of a mass attached to a spring is 4Hz. At time t = 0, the mass has an initial displacement of 0.200m, When will the mass first reach a turning point
A chair of weight 75.0 lies atop a horizontal floor; the floor is not frictionless. Using Newton's laws, calculate , the magnitude of the normal force that the floor exerts on the chair
A simple pendulum is made of a small blob of mass m = 7.000 kg attached to the end of an inextensible wire. The angular amplitude of oscillation is ?0 = 7.162°. What is the magnitude of the tension in the wire when the blob is directly below its poin..
An object is located 12.5 cm in front of a convex mirror, the image being 6.90 cm behind the mirror. How far in front of the mirror is the second object located
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