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You measure the power delivered by a battery to be 9.98 Watt when it is connected in series with two equal resistors. Determine how much power will the same battery deliver if the resistors are now connected in parallel across it?
A steel ball is dropped from a building's roof and passes a window, taking 0.13 s to fall from the top to the bottom of the window, a distance of 1.20 m. How tall is the building
Two identical pucks are on an air table. Puck A has an initialvelocity of 2.3 m/s in the positivex-direction. Puck B is at rest. Puck A collides elastically with puck B and A moves off at 1.0 m/s at an angle of +60° above thex-axis.
The of is accompanied by a ray of measured wavelength 2.48×10?2. What is the difference in energy between these two levels
Scenario: You and a friend, who is twice your size, decide to slide down identical water slides at the same time, Who will have the greater momentum at the bottom
Crossfire was a popular board game in which players attempted to propel a "puck" forward towards their opponet's side by shooting metal balls at it. What is the maximum speed a player can impart to the puck
The Helium-Neon laser used in many labs and demos emits red light with wavelength of 0.6328 ?m. calculate how many photons of red light emerge from the laser every second
a steel rod is used to transfer heat from a chamber at 300 k to a chamber at 250 k. which of the following changes in
a fighter plan flying at 378 ms at an altitude of 160 m during a training mission releases a projectile when he starts
Bob can throw a 460 g rock with a speed of 32 m/s. What is Bob's maximum power output as he throws the rock in kW
A 4.00 kg hollow sphere of radius 5.00 cm starts from rest and rolls without slipping down a 30.0 degree incline. If the length of the incline is 50.0 cm, then the velocity of the center of mass of the hollow sphere at the bottom of the incline is:
A plane move through the air. This results in the air under thewing moving at speed v=50 m/s. what is the lift exerted on the plane in Newtons
A child is on a swing whose 4.0 m long chains make a maximum angle of 49 degrees with the vertical. What is the child's maximum speed
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