Answers: 1
Physics, 21.06.2019 16:10
The man fires an 80 g arrow so that it is moving at 80 m/s when it hits and embeds in a 8.0 kg block resting on ice. how far will the block slide on the ice before stopping? a 7.1 n friction force opposes its motion.
Answers: 3
Physics, 22.06.2019 10:00
Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?
Answers: 1
Physics, 22.06.2019 10:30
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
Physics, 22.06.2019 10:30
Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.
Answers: 3
How do you find mechanical advantage?...
Mathematics, 10.10.2019 00:50
Mathematics, 10.10.2019 00:50
Social Studies, 10.10.2019 00:50
Mathematics, 10.10.2019 00:50
English, 10.10.2019 00:50
Mathematics, 10.10.2019 00:50
Biology, 10.10.2019 00:50
English, 10.10.2019 00:50
Mathematics, 10.10.2019 00:50
Social Studies, 10.10.2019 00:50
Mathematics, 10.10.2019 00:50
Social Studies, 10.10.2019 00:50
Mathematics, 10.10.2019 00:50