Physics, 19.09.2019 21:30 ayoismeisjjjjuan
Snowballs are thrown with a speed of 13 m/s from a roof 7.0 m above the ground. snowball a is thrown straight downward; snowball b is thrown in a direction 25o above the horizontal. when the snowballs land, is the speed of a greater than, less than, or the same speed of b? verify your answer by calculation of the landing speed of both
Answers: 3
Physics, 22.06.2019 20:10
On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)
Answers: 1
Physics, 22.06.2019 20:40
Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.
Answers: 1
Physics, 22.06.2019 23:00
1700 j of energy is lost from 0.14 kg object , the temperature decreases from 50°c to 45°c what is the specific heat of this object, amd what is the material ?
Answers: 1
Physics, 23.06.2019 00:10
An astronaut floating in space is trying to use her jetpack to get back to her space station, but she is being pulled away by a nearby planet, as shown in the image below. her jetpack provides a constant thrust of 310 n. if she angles her jetpack in such a way that it cancels out the vertical force due to the planet's gravity, what is her net horizontal force? thaud 487 o a. 54.8 n toward the space station o b. 212.9 n toward the space station o c. 185.2 n toward the space station o d 956 n toward the space station
Answers: 1
Snowballs are thrown with a speed of 13 m/s from a roof 7.0 m above the ground. snowball a is thrown...
Spanish, 07.05.2020 07:05
Biology, 07.05.2020 07:05
Mathematics, 07.05.2020 07:05
Mathematics, 07.05.2020 07:05
Mathematics, 07.05.2020 07:05
Mathematics, 07.05.2020 07:05
History, 07.05.2020 07:05
Social Studies, 07.05.2020 07:05
Mathematics, 07.05.2020 07:05
English, 07.05.2020 07:05
Computers and Technology, 07.05.2020 07:05
Biology, 07.05.2020 07:05
Mathematics, 07.05.2020 07:05
History, 07.05.2020 07:05