
I can not copy and paste the problems, so I am just uploading the paper. I only need help with 7 and 8. Please work out the problem with all the equations, cancelations, and all the work, so I will kn

A projectile is fired at an angle of 45 degree with initial kinetic energy E. At the top of its trajectory, the projectile exploes with additional energy E into two fragments. One fragment of mass m1

A DC voltage source with voltage V and output resistance (i.e., internal resistance)R0 is connected to a load of resistance RL, which may be varied. Show that the power dissipated in the load will be

1. A 7 omega resistor is mounted in parallel with a resistor R=8 omega, and this combination is connected in series with an 6 omega resistor and a 12 Volts battery. What is the current through the R r

A bag of cement of weight 300 N hangs from three wires as shown in the figure below. Two of the wires make angles 1 = 57.6 and 2 = 24.0 with the horizontal. If the system is in equilibrium

uestion A stone is thrown upward from the edge of a cliff, reaches its maximum height, and then falls down into the valley below. A motion diagram for this situation is given , beginning the instant

Is my answer to this question correct? Are there mistakes in the details? Q: Name three spiral tracers and explain why they have to be shortlived. Ans: All spiral tracers share the characteri

Is the answer I have provided to the question in the file correct? Are there mistakes in the details?

A small 7.19 g plastic ball is suspended by a 24.2 cm long string in a uniform electric field of 3880 N/C. Is the ball's charge positive or negative

An electric field of magnitude 3.41 kN/C is applied along the x axis. Calculate the electric flux through a rectangular plane 0.350 m wide and 0.700 m long in the following cases. (a) the plane is pa
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 The Earth’s rate of rotation is constantly decreasing, causing the day to increase in duration. In the year 2000 the Earth takes about 0.548 s longer to complete 365 revolutions than it did in the year 1900.
 (a) What is the average angular acceleration of the Earth?
 (b) If this average acceleration remains constant, in what year will the Earths rotation come to rest?
1. Can you show me step by step how to solve this problem?:
 A spherical balloon is made from a material whose mass is 3.00kg. The thickness of the material is negligible compared to the 1.5m radius of the balloon. The balloon is filled with helium (He) at a temperature of 305degrees K and just floats in the air, neither rising nor falling. The density of the surrounding air is 1.19kg/m^3. Find the absolute pressure of the helium gas
2. I do not understand this Ideal Gas Law and Kinetic Theory question. Can you help me set it up?