Tom has a mass of 75.0 kg and Sally has a mass of 47.0 kg. Tom and Sally are standing 20.0 m apart on the dance floor. Sally looks up and sees Tom. She feels an attraction. If the attraction is gravitational, find its size. Assume that both Tom and Sally can be replaced by spherical masses.
Answers: 3
Physics, 21.06.2019 22:50
Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]
Answers: 2
Physics, 22.06.2019 12:00
Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.
Answers: 1
Physics, 22.06.2019 12:20
Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)
Answers: 1
Tom has a mass of 75.0 kg and Sally has a mass of 47.0 kg. Tom and Sally are standing 20.0 m apart o...
Mathematics, 17.06.2021 15:50
Mathematics, 17.06.2021 15:50
Mathematics, 17.06.2021 15:50
Mathematics, 17.06.2021 15:50
Mathematics, 17.06.2021 15:50
Mathematics, 17.06.2021 15:50
Mathematics, 17.06.2021 15:50
Mathematics, 17.06.2021 15:50