Please help me 100 points for correct answers, answers without context will be reported 1. In the situation below, a tractor pulls the 850-kg sled along a ramp of height ℎ = 1 m and slope of θ = 30 °. If the tractor applies constant force on the sled T = 6750 N at an angle φ = 36.9 °, determine the total work done by all forces on the sled to move it along the ramp. The coefficient of kinetic friction between the sled and the plane is u = 0.3. Hint: For the calculation, remember that only the components of the forces parallel to the direction of travel contribute to the work. Disregard the dimensions of the sled.

2) When firing a 2 projectile at a 1.4 block, initially at rest, it is observed that the projectile wedges into the block and the system moves together for a distance = 0.1 before stopping. If the coefficient of kinetic friction between the block and the surface is = 0.25, determine what the velocity of the projectile was at the instant before impact. Hint: here you should use the conservation of linear momentum and also of energy, considering the work done by the frictional force.

How do the measurements of charge at the different locations on the sphere compare to each other? the charge measurements are different at all locations on the sphere. the charge measurements are virtually not the same at all locations on the sphere except for the charge at the very top and at the very bottom that are equal. the charge measurements are virtually the same at all locations on the sphere except for the charge at the very top. at the top, the conductive sphere has a small disk that is made of different material. the charge measurements are the same at all locations on the sphere. what happens to the charge on the conductive sphere when it is connected to a source of charge such as the electrostatic voltage source? nothing will happen because no charge goes around the surface of the sphere. the charge on the conductive sphere spreads out over the surface of the sphere; being greater in some specific locations on the sphere. the charge on the conductive sphere spreads out uniformly over the surface of the sphere. the charge on the conductive sphere spreads out non-uniformly over the surface of the sphere.

Calculate the velocity of a car traveling in a straight path due east with a distance of 16 meters in 2 seconds. question 1 options: a)32 m/s b)32 m/s e c) 8 m/s e d) 8 m/s

Which best term to describe a chemical reaction that absorbs energy from its surroundings? a.thermal conductor b.thermal insulator c.endothermic d.exothermic