Suppose Spider-Man throws a web that is 1.00 m long with a velocity of 0.8c (γ = 5/3) with respect to the Earth. What will be the length of web as observed by J. Jonah Jameson standing on the Earth...
Suppose Spider-Man throws a web that is 1.00 m long with a velocity of 0.8c (γ = 5/3) with respect to the Earth. What will be the length of web as observed by J. Jonah Jameson standing on the Earth...
a. They were able to observe their tracks in cloud chambers. b. Scientists were confident in the law of Conservation of energy. c. They were able to calculate exactly how much mass...
I think a) is (b-y)^2 + x^2 = L^2; the second derivative of this can be taken to get the actual accelerations. I can't get b) though. Have been stuck on this for a while! Thank you!...
If a 0.06247 kg ice cube initially at 0.00 C is allowed to melt in a Styrofoam cup holding 0.497 kg of water at 10.0 C , what is the total entropy change for this process?
If a 0.06247 kg ice cube initially at 0.00 C is allowed to melt in a Styrofoam cup holding 0.497 kg of water at 10.0 C , what is the total entropy change for this process?
- helium, carbon, gold - sodium, chromium, copper - iodine, iron, nickel -phosphorous, nitrogen, oxygen
The moon is revolving around the earth at about 1 rev per 27.3 days. Assume that the average radius of the moon is 1,080 miles and the average distance from the earth to the moon is 238900 miles,...
A shell was fired from ground level with an initial speed of 350 m/s at an angle of 30 degrees to the horizontal. Assuming there is no air resistance, calculate: a) its time of flight; b)...
A bicycle accelerates from rest at 0.50 m/s^2. What is the velocity of the bicycle after 6.0 s?
A sock stuck to the side of a clothes-dryer barrel has a centripetal acceleration of 28 m/s2. If the dryer barrel has a radius of 27.6 cm, what is the tangential speed of the sock? Can...
Two objects with masses of 1.00 kg and 6.00 kg are connected by a light string that passes over a frictionless pulley. (a) Determine the tension in the string. (b) Determine the...
Two blocks on a frictionless horizontal surface are connected by a light string, where m1 = 11 kg and m2 = 22 kg. A force of 80 N is applied to the 22 kg block. (a) Determine the acceleration...
a styrofoam ball is attached to the bottom of a swimming pool with a nylon cord. the cord is 1.20 m long and the pool is 3.3 m. diameter of ball is 46cm. density of styroforam is 0.3 g/cc...
In the figure here, a red car and a green car move toward each other in adjacent lanes and parallel to an x axis. At time t=0, the red car is at xr=0 and the green car is at xg=210 m. If the red car...
a. the height reached by the bullet b. the total time the bullet is in the air assuming the bullet was fired from ground level.
two towns a and b are connected by a regular bus service with a bus leaving in either direction every T minutes. A man cycling with a speed of 20 km/h in the direction a to b notices that a bus goes...
Are these consistent and independent, consistent and dependent or inconsistent
Particles A and B are located on the x-axis. The masses and positions of the particles are: mA = 12 grams ...
Suppose that a force of 20N stretches a spring 0.4 m beyond its natural length. How far will a 40N force stretch the spring? a. 1.0 b. 0.4 c. 0.2 d. 0.8
If you have a rod of length 5 with density p(x)=2+(x/5). What is the center of mass of the rod? a. ¯x=2.5 b. ¯x=2.667 c. ¯x=3.333 d. ¯x=2.165