Answer : No, not at all. Q: How big is the net force acting on an object with constant velocity? They can be focused on the cancerous tumors to destroy them. Question 8 Why do we hear sound of an approaching truck before the truck reaches us? What is meant by a. Why are large temperatures required for fusion to occur? Even the atoms in a solid vibrate around a fixed spot. Physics short questions and answers Physics short questions and answers The following text is used only for teaching, research, scholarship, educational use and informative purpose following the fair use principles.
The nucleus becomes more stable by releasing excess energy either in the form of particles alpha and beta or as a wave. It's not a race, so you can work through them at your own pace. They stick together and move off at more than half the original velocity of the moving train car. After second half — life. It is not permanent for a given period of time. Q: In a tug of war, when one team is pulling with a force of 100 N and the other 80 N, what is the net force? The crane pulls up vertically on the cable with a constant velocity V p. For detecting λ — rays window becomes useless because of high penetrating power of λ — rays.
Problem 12 A linkage arrangement is shown below. Answer : The motion of rocket is an application of law of conservation of linear momentum. Unlike poles attract because the magnetic forces are moving in the same direction. Question 20 What type of waves can travel in vacuum? The section of the boomerang moving in the same direction as the direction of forward motion moves faster than the section moving in the opposite direction. The official boundary between the Earth's atmosphere sky and space is called the Kármán line.
The cost of electricity produced by it is high. The air moving over the curve travels faster in order to reach the other side of the wing, creating lift. Note that the force of gravity has two components parallel and perpendicular component ; the parallel component balances the applied force and the perpendicular component balances the normal force. The cosmic rays entering the earth from the upper atmosphere along with the sunlight. Answer This is because velocity of sound is much greater than the velocity of truck Question 9 What is the frequency of wave with time period 0.
There may also be more particles produced. These are called the isotopes of chlorine. So it ionizes the atom through electrostatic force of repulsion. There was a time I failed in Physics ad had no love for the subject. If the angle of the initial drop in the roller coaster diagram above were 60 degrees and all other factors were kept constant , would the speed at the bottom of the hill be any different? This first law of motion states the same thing as stated by inertia. A depletion layer is formed at the junction. In other words, when radiation is allowed to enter the depletion, electron — hole pairs are produced by the incident radiation.
Explain the significance of this current. It is all down to unpaired electrons: moving electrons create magnetism due to their magnetic charge, but in most atoms electrons are paired and so cancel each other out. Physics short questions and answers Physics short questions and answers. Because similar charges repel the gold leaf moves away from the main section. Problem 4 In archery, when an arrow is released it can oscillate during flight. What is the velocity of the arrow immediately after release? It can be stated as a body opposes any change in its state of rest or of uniform motion. The faster baseball penetrates four times as far.
Q: The normal force acts on any object that:A: Is in a gravity wellB: Is in a vacuumC: In in the airD: Touches a surface-------------------------------------19. In a real image the light rays meet; in a virtual image they do not. What is the role of this layer of glass? Sun light, X-rays are examples of electromagnetic waves. Based on your answer, what are the implications for making a turn close to the curb? This hot air then rises and is replaced by cold air. Solutions For High School Physics Questions Solution For Problem 1 No. Einstein stated that objects of mass bend and warp the fabric of space-time bowling ball on trampoline.
Fast Fact: The only definitive way to determine if a metal is a magnet instead of just magnetic is to see if it can repel a known magnet. Assume there is no friction. We can solve this by equating the potential energy of the bow to the kinetic energy of the arrow. A rope is attached to a 50. Why must a Geiger Muller tube for detecting σ — particle have a very thin window? Give one difference between a real image and a virtual image. There are two types of electrical current available: Alternating Current and Direct Current.