Please, show me how you got the answer and choose from the chose. Thanks

1. What is the electric field strength E at a point 0.400 m from a point of charge of + 1.75 microC? a. 2.00 x 10^5 N/C b. 9.85 x 10^4 N/C c. 1.21 x 10^5 N/C d. 8.91 x 10^5 N/C 2. What is the lectric potential at a point 0.90 m away from a point charge of 2.5 mC? a. 10 MV b. 25 MV c. 35 MV ...continues

Please, show me how you got the answer and choose from the chose. Thanks

1. A 500-microFarad capacitor is discharged through a 4.7-Mega ohm resistance. What is the time constant? a. 600 s b. 300 s c. 2350 s d. 1200 s 2. Water in a fish tank is 7.6 feet deep, and a coin rests on the bottom. How far below the surface does the coin appear to be when viewed from above? (Assume a ...continues

Basic Physics: Average Force; Kinetic, Potential and Mechanical Energy; Tangential Speed; Pendulum

38. In an emergency stop to avoid an accident, a shoulder-strap seat belt holds a 60-kg passenger firmly in place. If the car were initially traveling at 90 km/h and came to a stop in 5.5 s along a straight, level road, what was the average force applied to the passenger by the seatbelt? 66. A person standing on a bridge at a ...continues

CT scanner

A CT scanner has to be able to form an image within a 40cm diameter image area. The spatial sampling along each profile is 1mm. What angular resolution (the angle between projections) is required to match this sampling distance at the boundary of the image area

Physics Energy Questions - Potential and Kinetic

1. How much potential energy does an object have that has a mss of 10 kg and is 4 meters off the ground on earth? 2. How much potential energy does an object have that has a mass of 10 kg and is 4 meters off the ground on the moon where gravity is 1.6(m/s^2)? 3. If the object falls half way to the ground so that its height is ...continues

PSS 6.1: Shooting the Breeze

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: A student throws rocks from the roof of a building. All of the rocks are thrown with the same initial speed v_0 and from the same initial height y_0, but they are thrown with different angles with res ...continues

PSS 7.1: The Round Trip

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: A cyclist competes in a one-lap race arond a flat, circular course of radius r. Starting from rest and speeding up at a constant rate throughout the race, the cyclist covers the entire course in a tim ...continues

Banked Frictionless Curve, and Flat Curve with Friction

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: A car of mass M traveling at speed v enters a banked turn covered with ice. The road is banked at an angle theta, and there is no friction between the road and the car's tires. What is the radius r of ...continues

Two Blocks and Two Pulleys

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: A block of mass m_1 is attached to a massless, ideal string. This string wraps around a massless pulley and then wraps around a second pulley that is attached to a block of mass m_2 that is free to sl ...continues

Collision at an Angle

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: Two cars, both of mass m, collide and stick together. Prior to the collision, one car had been traveling north at speed 2v, while the second was traveling at speed v at an angle omega south of east. A ...continues