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Consider the earth following its nearly circular orbit (dashed curve) about the sun.(Figure 2) The earth has mass m_earth=5.98*10^24 kg and the sun has mass m_sun=1.99*10^30 kg . They are separated, center to center, by r=93million miles=150million km. 1.What is the size of the gravitational force acting on the earth due to the sun?
A model rocket rises with constant acceleration to the height of 3.7, at which point its speed is 25. what was the magnitude of the rocket's acceleration.
Jack was exposed to fast neutrons; he received a radiation dose of 220rem rem on part of his hand, affecting 28.0grams of tissue. How much radiation did Jack receive
Airplane A , starting from rest with constant acceleration, requires a runway 600{\rm m} long to become airborne.
Examine whether it is reasonable to ignore the effects of gravity for each particle. Evaluate the paths travelled by electron and proton and explain the differences.
Giancoli, page 30 --when they say that x-xo increases with the square of the initial speed. Why do they say square of initial speed only, what about square of final speed? And why do they ignore that the distance also decreases by a factor of 2.
A hawk flies in a horizontal arc of radius 14 m at a constant speed of 5 m/s. (a) Find out its centripetal acceleration. (b) It continues loftly along the same horizontal arc but increases its speed at the rate of 1 m/s2. Find out the acceleration..
A series circuit consists of a 50.0-Hz ac source, a 50.0-ohm resistor, a 0.500-H inductor, and a 60.0-µF capacitor. What is the voltage amplitude of the source
What is the turntable rotation angular velocity
As in the previous problem (43), a solid block is suspended from a spring scale. If the reading on the scale when the block is completely immersed in water is 25.0 N, what are the block's volume and density
Tim walks half of the time and runs the other half. In terms of given quantities, in the special case that, what will be Tim's margin of victory.
When a turntable rotating at 45 rev/min is shut off, it comes to rest in 20 s. Find the angular acceleration
What is the range of frequency of the light emitted by the hydrogen atom
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