Physics, 11.03.2020 23:07 ekirk2021

A 2.1 ✕ 103-kg car starts from rest at the top of a 5.5-m-long driveway that is inclined at 21° with the horizontal. If an average friction force of 4.0 ✕ 103 N impedes the motion, find the speed of the car at the bottom of the driveway.

Answers: 2

Show answers

Another question on Physics

Physics, 21.06.2019 22:30

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Answers: 1

Answer

Physics, 22.06.2019 03:00

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

Answers: 2

Answer

Physics, 22.06.2019 17:00

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?

Answers: 2

Answer

Physics, 22.06.2019 18:00

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.

Answers: 1

Answer

You know the right answer?

A 2.1 ✕ 103-kg car starts from rest at the top of a 5.5-m-long driveway that is inclined at 21° with...

Questions