Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Gravity, G = 6.67 x 10-11 N m2/kg2
a) By how much does the gravitational force between 2 objects decrease when the distance is doubled? Tripled? Increased tenfold?
b) Calculate the force of gravity on a 1-kg mass at the earth’s surface. The mass of the earth is 6x1024 kg, and it’s radius is 6.4 x106 m.
c) Calculate the force of gravity on the same 1-kg mass if it were is 6.4 x106 m above the earth’s surface (that is, if it were 2 Earth radii from the Earth’s center)
d) Calculate the force of gravity between the Earth and the moon, mass is 74 x 1022 kg. The average Earth-Moon distance is 3.8 x108 m.
A 5* 10^2 kg hot air balloon takes off from rest at the surface of the earth. The non conservative wind and lift forces take the balloon up, doing +9.70*10^4J of work on the balloon in the process. At what height above the surface of earth does th..
A uniform plank of length 4.7m and weight 204 N rests horizontally on two supports, with 1.1 m of plank hanging over the right support. To what distance x can a person who weighs 445N walk on the overhanging part of the plank before it just begins ..
A space station is constructed in the shape of a wheel 16 rm m in diameter, with essentially all of its 6.0×10^5 rm kg mass at the rim.
What is the wavelength of the waves produced on the wire.
Assume someone drops an apple from a vertical distance of 6.0 meters, directly above the point where the arrow hits the tree.
Sources A and B emit long-range radio waves of wavelength 530 m, with phase of the emission from A ahead of that from source B by 90°. The distance rA from A to a detector is greater than corresponding distance rB from B by 110 m. What is the magni..
The coefficient of static friction between the wall and the rod is μs = 0.575. Determine the minimum distance x from point A at which an additional weight w (the same as the weight of the rod) can be hung without causing the rod to slip at point A.
A race car is one lap behind the lead car when the lead car has 43 laps to go in a race. If the speed of the lead car is 54.2 m/s, what should be the average speed of the second car to catch the lead car just before the end of the race (i.e. right..
What must the charge (sign and magnitude) of a particle of mass 1.44g be for it to remain stationary when placed in a downward directed electric field of magnitude 660 N/C.
Why must a thermom be calibrated? You have a glass bulb thermom with no markings on it, and a second one marked in degrees Celsius. Describe how you would calibrate the unmarked thermom.
Pete slides a crate up a ramp with constant speed at an angle of 27 degrees by exerting a 133 N force parallel to the ramp. How much work has been completed against gravity when the crate is raised a vertical distance of 1.6 m? The coefficient of fri..
Two moles of an ideal gas undergo a reversible isothermal expansion from 3.25×10-2 to 4.59×10-2 at a temperature of 21.7. what change of entrophy delta s of the gas.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd