Homework Statement
Suppose that a dietitian has 3 groups of foods, having 5 items in the first group, 7 items in the second group and 2 items in the third group.
1. How many meals are possible containing one food from each food group?
2. How many meals are possible containing 3 foods from...
A 5.00 g bullet moving with an initial speed of v0 = 405 m/s is fired into and passes through a 1.00 kg block, as in Figure P13.58. The block, initially at rest on a frictionless horizontal surface, is connected to a spring with a spring constant of 950 N/m.
Figure P13.58
(a) If the block...
can someone answer this please
does the period have any m dependence in the simple pendulum? No right since its a masless rod. Also under what condition does the theoretical formula hold for the simple pendulum, would it be only for larger angles and amplitudes?
Also there is a mass dependence...
thanks alot, also does the period have any m dependence in the simple pendulum? No right since its a masless rod. Also under what condition does the theoretical formula hold for the simple pendulum, would it be only for larger angles and amplitudes?
Also there is a mass dependence in the...
What is the similarity between Simple Harmonic Oscillation(SHO), simple pendulum and a physical pendulum? I never understood it. Like whats the physical significance of SHO, or the energy and momentum change in oscillating motion?
^ I have it written on top but if u want it again
((1.013X10^5 Pascals)(.004m^3))/20 Celsius= (((1.013X10^5 Pascals + 2X10^3N/m X height)/0.0100 meters^2)(.004m^3 + 0.0100meters^2 X height))/all over 230 Celsius
L= 270
change in L/270= 12 X 10^-6 (21)= 0.06804
270+0.06804= 270.06804
270/2= 135
270.06804/2= 135.03402
now according to u I should do pythagorean theorum, which I did and got 190.9
thats not right
I got it though finally, when I do L/2, which is 270/2= 135, take the change in L, which is...
Homework Statement
Two concrete spans of a L = 270 m long bridge are placed end to end so that no room is allowed for expansion (Fig. P10.55a). If the temperature increases by T = 21.0°C, what is the height y to which the spans rise when they buckle (Fig. P10.55b)
Homework...
Homework Statement
An expandable cylinder has its top connected to a spring with force constant 2.00 103 N/m. (See Fig. P10.58.) The cylinder is filled with 4.00 L of gas with the spring relaxed at a pressure of 1.00 atm and a temperature of 20.0°C.
(a) If the lid has a...
so the vertical component, which is Lsin30, is that the initial height? I am confused, I tried this again and again but I cant egt it right. And the gauge pressure is 0 since the air is touching the water, air's pressure is 1 atm
Homework Statement
Figure P9.81 shows a water tank with a valve at the bottom. If this valve is opened, what is the maximum height attained by the water stream coming out of the right side of the tank? Assume that h = 8.0 m, L = 1.50 m, and = 30° and that the cross-sectional area at A is very...
The puck in Figure P8.51 has a mass of 0.120 kg. Its original distance from the center of rotation is 40.0 cm, and it moves with a speed of 85.0 cm/s. The string is pulled downward 15.0 cm through the hole in the frictionless table. Determine the work done on the puck. (Hint: Consider the change...
(a) Give an example in which the net force acting on an object is zero and yet the net torque is nonzero.
(b) Give an example in which the net torque acting on an object is zero and yet the net force is nonzero.
can b be torque= Tension(12 N)(radius 0m) ?