Plz i really need this
directions: for each situation, you need to determine if the o...
Physics, 03.02.2020 06:51, laceybabin1952
Plz i really need this
directions: for each situation, you need to determine if the object has ke or gpe or both. then find their values. be sure to include the correct units.
1. a 2-kg bowling ball sits on top of a building that is 40 meters tall.
circle one: ke / gpe / both
show your work for finding the values of each type of energy the object has:
2. a 2-kg bowling ball rolls at a speed of 5 m/s on the roof of the building that is 40 tall.
circle one: ke / gpe / both
show your work for finding the values of each type of energy the object has:
3. a 2-kg bowling ball rolls at a speed of 10 m/s on the ground.
circle one: ke / gpe / both
show your work for finding the values of each type of energy the object has:
4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s.
circle one: ke / gpe / both
show your work for finding the values of each type of energy the object has:
part 2: finding speed and height using energy
directions: use the ke and gpe equations to solve for speed or height depending on the situation.
1. a 1,000-kg car has 50,000 joules of kinetic energy. what is its speed?
2. a 200-kg boulder has 39,200 joules of gravitational potential energy. what height is it at?
3. a 1-kg model airplane has 12.5 joules of kinetic energy and 98 joules of gravitational potential energy. what is its speed? what is its height?
Answers: 3
Physics, 22.06.2019 05:40, thomasalmo2014
Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.
Answers: 3
Physics, 22.06.2019 06:00, pinkyglitter2696
What are atoms of the same element with varying number of neutrons
Answers: 3
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