Questions tagged 'Physics'
312 questions
Oct 29, 2024
Helium has the lowest boiling point of any substance, at 4.2 k. part a what is this temperature in âc?
Helium has the lowest boiling point of any substance, measured at 4.2 K. Part A: What is this temperature in degrees Celsius (°C)?
novice skier, starting from rest, slides down a frictionless 34.0° incline whose vertical height is 124 m.?
A novice skier starts from rest and slides down a frictionless incline that is angled at 34.0° and has a vertical height of 124 meters. What is her speed when she reaches the bottom of the incline, ex...
Oct 28, 2024
Physics Question – Newton’s Laws?
As a chimpanzee climbs up to a branch, it accelerates upward at a rate of 2.3 m/s² while exerting a downward force of 280 N on the branch. What is the magnitude of the force that the chimpanzee exerts...
A propeller is modeled as five identical uniform rods extending radially from its axis. The length and mass..?
A propeller is modeled as five identical uniform rods extending radially from its axis. Each rod has a length of 0.757 m and a mass of 2.63 kg. When the propeller rotates at a speed of 529 revolutions...
Oct 28, 2024
A small car is pushing a large truck. they are speeding up.
A small car is pushing a large truck, and they are both accelerating. Is the force that the truck exerts on the car larger than, smaller than, or equal to the force that the car exerts on the truck?...
A 0.025-kg bullet is fired vertically at 208 m/s into a 0.15-kg baseball that is initially at rest. The bullet?
A 0.025-kg bullet is fired vertically at a speed of 208 m/s into a 0.15-kg baseball that is initially at rest. The bullet lodges in the baseball, and after the collision, the baseball and bullet rise...
Beverly and Carl are in a race. Their graphs show the data. A graph with horizontal axis time (seconds) and vertical axis velocity
In the context of the race between Beverly and Carl, the graphs they produced illustrate their performance over time. Notably, one graph features time measured in seconds on the horizontal axis and ve...
Physics Forces help, 10 pts!?
A skier is sliding down a slope with an angle of 15 degrees. Friction is present and cannot be ignored. Please identify all the forces acting on the skier from the following options: static friction,...
Gas Pressure Inside a Cylinder?
A vertical cylinder with a diameter of 30 cm is sealed at the top by a frictionless piston weighing 16 kg. The piston is positioned 88 cm above the bottom of the cylinder, and the gas temperature is 3...
Oct 26, 2024
An overflowing flask?
A glass flask with a volume of 1000 cm³ at a temperature of 0.500 °C is completely filled with mercury, which is also at the same temperature. When both the flask and the mercury are heated together t...