Recent Homework Questions About Earth
Check my answers 6 ?s- Physics
What is a free body diagram? (Points : 1) a drawing of an object in free fall a diagram showing all the forces acting on an object but not its surroundings <-- a diagram showing the shape of an object and the forces that act on it a diagram of an object that is free to ...
Tuesday, November 19, 2013 at 12:11pm
a proton flying to the east near the surface of the earth at 1000mls. what is the magnitude of the force the proton feels due to earths magnetic field
Monday, November 18, 2013 at 7:59pm
Gravity on the surface of the moon is only 1 6 as strong as gravity on the Earth. What is the weight of a 30 kg object on the Earth? The acceleration of gravity is 10 m/s 2 . Answer in units of N What is the weight on the moon? Answer in units of N What is the mass on the ...
Monday, November 18, 2013 at 6:53pm
Physics - pendulum
A pendulum that on Earth has period 0.52 s is taken to the surface of a large asteroid, where it is measured to have period 1.7 s. What is the value of the gravitational acceleration on the surface of that asteroid?
Monday, November 18, 2013 at 2:12pm
A wheel in the shape of a uniform disk of radius R and mass mp is mounted on a frictionless horizontal axis. The wheel has moment of inertia about the center of mass Icm=(1/2)mpR2 . A massless cord is wrapped around the wheel and one end of the cord is attached to an object of...
Monday, November 18, 2013 at 4:05am
There are about 7 billion people on Earth. Suppose that they all lined up and held hands, each person taking about 2 yards of space. a. How long a line would the people form? b. The circumference of the Earth is about 25,000 miles at the equator. How many times would the line ...
Sunday, November 17, 2013 at 3:39pm
A pulley of mass mp , radius R , and moment of inertia about its center of mass Ic , is attached to the edge of a table. An inextensible string of negligible mass is wrapped around the pulley and attached on one end to block 1 that hangs over the edge of the table. The other ...
Sunday, November 17, 2013 at 1:18pm
On the Earth h=v²/2g On the Moon H=v²/2g₁ H/h= v²2g/2g₁v²=g/g₁ H=h g/g₁=24.29.8/1.6= 148.225 m
Saturday, November 16, 2013 at 10:36pm
on the Earth W= mg on the Moon W₁=mg₁=mg/6 =9=W/6 =900/6 =150 N
Saturday, November 16, 2013 at 5:42am
Earth space science, check answers?
A. 75 % B. 12.5% C. 25% D. 3.13% E. 9.38% 3. what percentage of land on the earths surface is inhospital lands? - B 4. what percentage of earths surface is covered by land? - C 5. what percentage of land on earth is usable, for living on, but not for agriculture/farming?-D 6. ...
Friday, November 15, 2013 at 1:34pm
Earth space science.
If you label your posts accurately, you're more likely to get a response from a tutor with that expertise.
Friday, November 15, 2013 at 1:11pm
Assuming this is on earth and the rocket goes up vertically, d = -16t^2 + 120t + 4 dd/dt = velocity = -32t + 120 when does it hit the ground? 0 = -16t^2 + 120t + 4 4t^2 - 30t - 1 = 0 t = (30 ± √916)/8 = 7.5332 or a negative which we'll reject velocity = -32(7....
Thursday, November 14, 2013 at 7:10pm
Earth space science
Well lets say For city A; 57. 156. 53 b;61. 135. 56 c; 58,136. 11 d; 67.65.198
Thursday, November 14, 2013 at 1:10pm
Physics Classical Mechanics
A satellite of mass m is orbiting the earth, mass M , in a circular orbit of radius ra . Unfortunately a piece of space debris left by a passing rocket lies directly in the satellite's path. The piece of debris has the same mass m as the satellite. The debris collides with...
Thursday, November 14, 2013 at 9:34am
a) the slide is frictionless? The answer No but why? because of the energy conversation rule Potential Energy(PE)=Kinetic Energy(KE) this means Potential Energy of the child on the top of the slid is the same as his Kinetic Energy on the bottom. Remember KE = 0.5*m(mass of ...
Monday, October 30, 2006 at 9:40pm