3.9 moles of an ideal gas are sealed in a container with volume 0.22 m3, at a pressure of 146,000 N/m2.  What is the temperature of the gas in degrees Celsius?

when a cannon is launched at a 65 degree angle, will it have the same horizontal velocity as when it is launched from a 25 degree angle as long as the initial speed is the same?

Please solve the problem step by step and provide explanations along each step stating what's being done. Thank you!!

No chatgpt pls will upvote

Plz both no chatgpt  Will.upvote

Please solve the problem step by step with explanations along each step explaining what's been done.Thank you!!

Figure 8.14 shows a cube at rest and a small object heading toward it. (a) Describe the directions (angle 1) at which the small object can emerge after colliding elastically with the cube. How does 1 depend on b, the so-called impact parameter? Ignore any effects that might be due to rotation after the collision, and assume that the cube is much more massive than the small object. (b) Answer the same questions if the small object instead collides with a massive sphere.

2. A projectile is shot from a launcher at an angle 0,, with an initial velocity magnitude vo, from a point even with a tabletop. The projectile hits an apple atop a child's noggin (see Figure 1). The apple is a height y above the tabletop, and a horizontal distance x from the launcher. Set this up as a formal problem, and solve for x. That is, determine an expression for x in terms of only v₁, 0, y and g. Actually, this is quite a long expression. So, if you want, you can determine an expression for x in terms of v., 0., and time t, and determine another expression for timet (in terms of v., 0.,y and g) that you will solve and then substitute the value of t into the expression for x. Your final equation(s) will be called Equation 3 (and Equation 4).

Draw a phase portrait for an oscillating, damped spring.