Posted in Physics

Please login to view the answer

Login
Join us

Related Questions

Posted in Physics

Darryl throws a basketball at the gym floor. The ball bounces once on the floor and comes to rest in his coach’s hands. At which point are all the forces on the basketball balanced?

Please login to view the answer

Login
Join us

Posted in Physics

Which statement best describes the term absolute threshold? A. It refers to the maximum amount of information that a person can process. B. It refers to the lowest intensity at which a person can detect stimuli. C. It refers to the minimum change in intensity of stimuli that a person can detect. D. It refers to the amount of physical energy that a person can convert to electrical energy.

Please login to view the answer

Login
Join us

Posted in Physics

Which situation is contrary to Newton’s first law of motion? An object at rest begins to move when an external force is applied. A moving object has a constant velocity under the influence of balanced forces. An object at rest stays at rest as long as unbalanced forces act on it. A moving object slows down when an external force is applied.

Please login to view the answer

Login
Join us

Online Tutors To Help You

Posted in Physics

22) which phase of cbrn response focuses on the prioritization of forces to deploy for mission task?

Please login to view the answer

Login
Join us

Posted in Physics

In deep space, there is very little friction. Once they launch a probe into deep space, where there are no external forces acting on it, scientists shut the probe’s engines off because the scientists want the probe to stop immediately. speed up. slow down. move at constant velocity.

Please login to view the answer

Login
Join us

Posted in Physics

As a solid reaches its melting point intermolecular bonds have been disrupted, causing: A: increased particle vibration B: a change in particle position C: breaking of intermolecular bonds D: all of the above

Please login to view the answer

Login
Join us

Online Tutors To Help You

Posted in Physics

Which electrical protective device is designed to detect a difference in current between circuit wires and interrupt the circuit and stop the flow of electricity? a. attach ungrounded, two-prong adapter plugs to three-prong cords and tools b.do not operate electrical equipment when working in wet conditions c. hold fingers on the switch while carrying a plugged-in tool d. use gfci only when using double insulated power tools

Please login to view the answer

Login
Join us

Posted in Physics

A box of mass 10 kg is pulled from the hold of a ship with an acceleration of 1 m/s^2 by a vertical rope attached to it .find the tension in the rope.

Please login to view the answer

Login
Join us

Posted in Physics

Which of the following is the most appropriate unit to describe the rate at which water flows out through a standard household faucet? Minutes per gallon, because the independent quantity is volume of water in gallons and dependent quantity is time in minutes. Gallons per minute, because the independent quantity is volume of water in gallons and dependent quantity is time in minutes. Minutes per gallon, because the independent quantity is time in minutes and dependent quantity is volume of water in gallons. Gallons per minute, because the independent quantity is time in minutes and dependent quantity is volume of water in gallons.

Please login to view the answer

Login
Join us

Online Tutors To Help You

Posted in Physics

1. In the circuit shown below, with each bulb holding a resistance of 100 ohms, how many amps of current are flowing? Express your number as a decimal. (See Figure) 2. Protons have positive charge, neutrons have negative charge, and electrons have no charge. A. True B. False 3. A complete electric circuit includes a voltage source, current, wires, and something to _________ the flow of current.

Please login to view the answer

Login
Join us

Posted in Physics

Selecting a signaling site and putting your signal in a suitable location is critical. a signaling site is defined as any site, based on your situation that enhances signaling efforts and the likelihood for the signal to be detected by friendly forces. what is a signaling site criterion?

Please login to view the answer

Login
Join us

Posted in Physics

An athlete is working out in the weight room. He steadily holds 50 kilograms above his head for 10 seconds. Which statement is true about this situation? The athlete isn’t doing any work because he doesn’t move the weight. The athlete isn’t doing any work because he doesn’t hold the weight long enough. The athlete is doing work because he prevents the weight from falling downward. The athlete is doing work because 50 kilograms is a significant load to lift.

Please login to view the answer

Login
Join us

Online Tutors To Help You

Posted in Physics

Which one of the following scenarios accurately describes a condition in which resonance can occur?End of exam A. A person is holding a tuning fork on one end of a football field and another person is holding a separate tuning fork on the opposite end of the field. B. A pipe’s length is equal to 1∕2 of the wavelength of the sound waves produced by a tuning fork vibrating over one end of the pipe that’s open to the air at both ends.C. A vibrating tuning fork is struck and begins to vibrate as the object used to strike it is placed away from the tuning fork. D. A column of air has a height equal to 1∕8 of the wavelength of the sound waves produced by a tuning fork vibrating over the column of air in an open pipe that’s partially immersed in water.

Please login to view the answer

Login
Join us

Posted in Physics

Which of the following describes cytoplasm? an organelle containing enzymes for storing energy the core of a cell where genetic material is stored and duplicated a thick liquid residing between the cell membrane holding all the cell’s organelles, except for the nucleus. a membrane network involved in the synthesis and transport of cellular materials

Please login to view the answer

Login
Join us

Posted in Physics

In order for an object not to move, the forces on it must all be negative positive from gravity balanced

Please login to view the answer

Login
Join us

Online Tutors To Help You

Posted in Physics

Please Help! Levi and Clara are trying to move a very heavy box. Levi is pushing the box with a force of 30 N, and Clara is pulling the box with a force of 50 N. The box exerts a frictional force of 65 N. Which best explains the forces? There is a net force of 15 N in the direction of Levi. There is a net force of 15 N in the direction of Clara. There is no net force, so the forces are balanced. There is no net force, so the forces are unbalanced.

Please login to view the answer

Login
Join us

Posted in Physics

Use your data (attachment) from Part 3 and Newton’s laws to explain why the force meter measures a force if the cart is moving at a constant velocity. You should cover the following points. State Newton’s first law. • Identify the forces acting on the cart. • Describe the relationships between applied force and mass and between applied force and weight as linear (from data or mathematical derivation by applying Newton’s first law). • Explain why the data are linear in terms of Newton’s first law. • Graph F versus mass + cart.

Please login to view the answer

Login
Join us

Posted in Physics

Substances X and Y are both nonpolar. If the volatility of X is higher than that of Y, what is the best explanation? X’s molecules experience stronger dipole-dipole forces than Y’s molecules. Y’s molecules experience stronger dipole-dipole forces than X’s molecules. X’s molecules experience stronger London dispersion forces than Y’s molecules. Y’s molecules experience stronger London dispersion forces than X’s molecules. r

Please login to view the answer

Login
Join us

Online Tutors To Help You

Posted in Physics

What is the magnitude of the external force f necessary to hold the cart motionless at point c?

Please login to view the answer

Login
Join us

Posted in Physics

Gravity is a force that helps to hold the universe together.true or false

Please login to view the answer

Login
Join us

Posted in Physics

Two wagons are pulled with equal force. Wagon A is empty. Wagon B is carrying enough bricks to double the mass of the wagon. How do their accelerations compare? Wagon A will accelerate at twice the rate of Wagon B. Wagon B will accelerate at twice the rate of Wagon A. Wagon A will accelerate at half the rate of Wagon B. Both wagons will accelerate at the same rate since their forces are the same.

Please login to view the answer

Login
Join us

Online Tutors To Help You

Posted in Physics

A container can hold a mass of 40 grams. If Jackson has a fake gold chain that has a density of 10 g/cm3 that occupies a space of 5 cm3, will the box be able to hold it? (D=M/V, V=M/D, M=DxV)

Please login to view the answer

Login
Join us

Posted in Physics

The process that occurs when physical forces break rock into smaller pieces without changing the rock’s chemical composition is called ____.

Please login to view the answer

Login
Join us

Posted in Physics

1. Which of the following best describes the movement of an object at rest if no outside forces act on it? It will move due to inertia. Gravity will eventually cause it to move. It will stay at rest due to inertia. It will stay at rest due to gravity.

Please login to view the answer

Login
Join us

Online Tutors To Help You

Posted in Physics

A 17,000-kg airplane lands with a speed of 82 m/s on a stationary aircraft carrier deck that is 115 m long. find the work done by nonconservative forces in stopping the plane

Please login to view the answer

Login
Join us

Posted in Physics

Make a diagram showing forces acting on a coasting bike rider traveling at 25km/h on a flat roadway

Please login to view the answer

Login
Join us

Posted in Physics

A skydiver has jumped out of a plane and is falling faster and faster. What forces are present in this situation? Question 4 options: gravity, air resistance, and normal force air resistance gravity and air resistance gravity

Please login to view the answer

Login
Join us

Online Tutors To Help You

Posted in Physics

When gases, liquids, or solids are in contact with a moving object, the flow of _____ occurs due to frictional forces

Please login to view the answer

Login
Join us

Posted in Physics

Why are the action and reaction forces described by Newton’s third law of motion excluded in the free-body diagram of an object? A. They are equal and opposite, so they cancel one another. B. They act on different objects, so they would not appear together. C. They are in opposite directions, so only one would appear. D. They do not happen at the same time, so only one would appear.

Please login to view the answer

Login
Join us

Posted in Physics

Tas watches as his uncle changes a flat tire on a car. His uncle raises the car using a machine called a jack. Each time his uncle pushes down on the jack handle, the car rises up. Tas sketches the jack and labels it using the symbols F, to represent force, and d, to represent distance. He uses large and small letters to compare the sizes of the forces and distances. Which set of labels is correct for the side of the jack that Tas’s uncle pushes on? A-a large F and a small d B-a small F and a small d C-a large F and a large d D-a small F and a large d

Please login to view the answer

Login
Join us

Online Tutors To Help You