A hard spherical ball “B” is at rest, and a second ball “A” is moving at a speed of 4.00 m/s, they collide linearly and elastically. If ball A rebounds with half its initial speed, what is the...
A hard spherical ball “B” is at rest, and a second ball “A” is moving at a speed of 4.00 m/s, they collide linearly and elastically. If ball A rebounds with half its initial speed, what is the...
How much energy is lost if a 201 gram ball of clay moving east at 2.50 m/s collides completely inelastically with a 305 gram ball of clay moving south 3.75 m/s?
A small car with a mass of 800 kg travels northward at 26 m/s. Does the car have more or less momentum than a truck with a mass of 12500 kg traveling eastward at 19 m/s? How...
Three blocks (1,2,3) of mass 3.00 kg, 2.00 kg, 1.00 kg sit linearly 10.0 cm apart from each other on a frictionless surface. A 25 g bullet is shot at the first block, it travels through the...
A student is having a snow ball fight. ‘Accidentally’ a snowball travelling north at 10.0 m/s hits a bicyclist traveling west at 5.00 m/s. The mass of the snowball is 0.750 kg, and the bicyclist is...
In a new Olympic event athletes run as fast as they can, jump onto a sled, ride it down a hill and compress a spring as far as they possibly can. (Who thinks of these anyways?) a...
I have the correct answer for a but I'm still hazy on how I got there. For part b, I'm tol A massive black hole is believed to exist at the center of our galaxy (and most other spiral...
Dart hits wheel. In terms of m, M, v0, and R (of wheel), find: A) angular speed of wheel B) ratios of initial and final kinetic energies
I am having problems with this problem
- helium, carbon, gold - sodium, chromium, copper - iodine, iron, nickel -phosphorous, nitrogen, oxygen
I'm having trouble identifying all of the components of this problem. I don't understand how the initial position can be defined by so many different angles. An aircraft flies...
Two light circuits with identical lightbulbs. One has two lightbulbs in parallel. Other has them in series. Student 1 says series will glow brighter cuz the same current goes to both lightbulbs...
You’re 6.00 m from one wall of a house. You want to toss a ball to your friend who is 6.00 m from the opposite wall. The throw and catch both occur at 1.00 m above the ground. Here...
What happens to the force between two magnets when the distance between the two doubles.the force equals 5 newtons.I dont know the distance.
I'm having such a hard time with this..It's my physics HW and I don't know how to solve this.
I feel like the answer is right in front of me. I just keep arriving at the same solution which is apparently the wrong one. Could someone guide me to an easier way of approaching this problem that...
The question is: An object begins to move along the y axis and its position is given by the equation y = 5t2 − 3t − 2, with y in meters and t in seconds. (Express your answer in vector form.) a...
1. The Milky Way contains a supermassive black hole with mass of 4 million times the Sun(!). a. If the black hole is 2.4x10^20 away from Earth, calculate the gravitational force between the black...
A planet has ? the density of earth but 2x the radius. find the surface gravitational force on this planet. (Hint: Earth’s is 10N/Kg)
A circuit with a 100 ohm resistor, followed by a parallel wiring with two 100 ohm resistors. What happens to the potential difference along a parallel resistor if the other one is removed.