Physics

A father places his daughter in a swing that is 0.60\,\text{m}0.60m0, point, 60, start text, m, end text above ground. Then he raises the swing to a height of 1.3\,\text{m}1.3m1, point, 3, start text, m, end text and lets go. The girl and the swing have a combined mass of 14\,\text{kg}14kg14, start text, k, g, end text. Assume friction is negligible and use g = 9.8\,\text{m/s}^2g=9.8m/s 2 g, equals, 9, point, 8, start text, m, slash, s, end text, squared.Calculate the girls fastest speed.
1 Answer
Which one of the following statements concerning a collection of gas molecules at a certain temperature is true?A. The lower the temperature, the greater are the molecular speeds. B. Most of the molecules have the same kinetic energy. C. All molecules possess the same momentum. D. The molecules have a range of kinetic energies. E. All molecules move with the same velocity.
2 Answers
what is the relationship between work and mechanical advantage
1 Answer
Do two indentical objects become statically charged when you rub them together? Explain why they do or do not.
1 Answer
Please help if you can
1 Answer
What would be the difference in your welght if you were four times farther from the center of Earth than you are now?
1 Answer
please helpTwo masses m1 and m2, are a distance R apart and mq exerts a gravitational force F on m2. What is the gravitational force is the gravitational force on M1?
1 Answer
write of the following does not represent electrical power in a circuit ? (a) IR (b) IR(c)VI (d) V/R
1 Answer
Does the coefficient of kinetic friction depend on the speed?
1 Answer
Which sentence states Newton's second law?
1 Answer
A new moon is discovered orbiting Neptune with an orbital speed of 9.3 x103 m/s. Neptune's mass is 1.0 x1026 kg. A) What is the radius of the new moon's orbit? B) What is the orbital period? Assume that the orbit is circular. (G = 6.673 x10-11 N-m/kg?
1 Answer
A 2-kg object is pulled to the left with a force of 30 N and to the right with a force of 9 N. What is the acceleration of the object?
2 Answers
Help me pls both answers ill give brainly
1 Answer
will mark brainliest if answer
1 Answer
A body is thrown up into the air takes a time of 4s to reach the height. What is the velocity with which the body was thrown up.(g=10ms2)
1 Answer
why does gas have the most energy but moves the slowest
1 Answer
Convert 8 m/s to miles per hour
1 Answer
What two things related to sedimentary rocks do you see at the Grand Canyon ?
1 Answer
Physicists call any change in energy an impulse true or false?
1 Answer
Four balls with different masses are dropped from the heights shown. Air resistance may be ignored. Which ball has the greatest average speed?
1 Answer
Michelle recently started selling her invention: A bed that looks like it floats in mid-air. The bed is actually suspended by magnetic forces. Michelle is a(n)
1 Answer
A student removed a wool hat from her head. Her hair stood up from static electricity. What did her hat do to cause this
2 Answers
what is dispersion of light?
1 Answer
A simple machine where an inclined plane is wrapped in a spiral is called a lever.
1 Answer