The archer holds the feather end of the arrow against the string while pulling it back. Releasing the string thrusts the arrow forward with the elastic force of the bow. The elastic potential energy of the bow is converted to the kinetic energy of the arrow. How does gravity affect archery? When the archer releases…

For this question you just simply need to apply the formula for torque which is r×F where r = (3-0)i +(2-0)j+(3-0)k and F=(2i-3j+4k) , just do the normal cross product calculations which will give you 17i -6j-13k. This is your final torque expression. How do you solve torque problems in physics? What are some examples…

A coaxial cable (described in Section 29.1) is a straight conductor surrounded by a concentric, cylindrically shaped conductor. Coaxial cables are widely used as conductors for current. For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable. How does a coaxial cable work? Coaxial cable…

The video asks students to predict when a bungee jumper experiences maximum acceleration. The answer is at the very bottom of the jump. This is often counter-intuitive as the velocity at this point is almost zero. As velocity is directional the maximum change occurs at the point the direction changes. What is the physics behind…

The amount of force a hydraulic cylinder can generate is equal to the hydraulic pressure times the effective area of the cylinder. (Effective Area is the surface area of the piston face in square inches.) FORMULAS: Force = psi x Area of Piston. How do you solve hydraulic lift problem? How does a hydraulic jack…

The magnitude of the acceleration will be the same for each object. How do you solve pulley problems in physics? How do you find the tension between two objects in physics? We know that the force of tension is calculated using the formula T = mg + ma. How do you find the contact force…

This absence of lag time contradicts classical physics understanding, in which irradiated electrons would take a significant time to gain energy before they can leave the metal surface. What are some examples of photoelectric effect? Applications of the photoelectric effect brought us “electric eye” door openers, light meters used in photography, solar panels and photostatic…

When you first release the parachute, the force of gravity pulls it downward, and the parachute speeds toward the ground. The faster the parachute falls, though, the more drag it creates. The drag force resists the downward movement of gravity, pushing the parachute back up. What is the parachute problem? Introduction The “parachute problem” is…

To calculate g force from velocity: Subtract initial velocity from final velocity. Divide the difference by time. Divide the resultant by the acceleration due to gravity, 9.81 m/s², to obtain the g force value. How do you solve gravitational force problems in physics? Is gravity 9.8 or 9.8 squared? Gravitational Force = (Gravitational Constant ×…

Conceptual physics is a laboratory science course with an emphasis on the scientific method and the fundamental principles of physics. This course is designed to provide students with a foundation for further study in biology, chemistry, and the advanced science courses. What does conceptual mean in physics? Physics concept questions or concept checking questions are…

Application of Derivatives in Real Life To calculate the profit and loss in business using graphs. To check the temperature variation. To determine the speed or distance covered such as miles per hour, kilometre per hour etc. Derivatives are used to derive many equations in Physics. What is the application of derivative in physics? In…

The shot put consists of three movements: the glide or rotation, the standing power position, and the release. Movements involved in the hammer and discus include body rotation within the boundaries of a ring and rely on centripetal forces and torque, culminating with a release. How do you solve projectile motion problems in physics? How…

Ramps. Stairs. Slides. Anthills. Slanted roofs. Escalators. How do you solve inclined problems in physics? What is the formula for an inclined plane? Sloping ramps, flyovers, roads on hills and staircases are a few examples of inclined planes. How do you solve a friction problem with an inclined plane? Inclined planes are simple machines used…

Their motion through the air is described by a parabola that is symmetric about its highest point. Once the jumper reaches this highest point they have zero velocity in the y-direction. Gravity then accelerates their motion back to the ground where they land a distance, R, from their take off point. How do you calculate…

How is physics used in bowling? The physics of bowling a strike dictates that to maximize the even distribution of force, the headpin should be struck at an angle of 30°. For bowling ball collisions and momentum, a hook ball technique is used. This technique contrasts the straight shot used by novices and for clearing…