Questions and answers by

amanda and leah

Questions (17)

a typical automobile has a maximum deceleration of about 7m/s2, the typical reaction time to engage the brakes is 0.50s. A
1. 1 answer
2. 612 views
Part 1A motorist traveling at 17 m/s encounters a deer in the road 48 m ahead. If the maximum acceleration the vehicle’s
1. 0 answers
2. 735 views
On a drive from your home to town, youwish to average 52 mph. The distance from your home to town is 106 miles. However, at 53
1. 1 answer
2. 2,745 views
Three point charges are arranged as shown.− + + −6.1 nC and 1.6 nC .4m apart 1.6 nC and 3 nC .088m apart What is the
1. 1 answer
2. 1,124 views
NOTE: the formula for converting theCHANGE in temperature is NOT the same as simply converting the temperature! A bridge is made
1. 0 answers
2. 535 views
Camera lenses are described in terms of theirfocal length. A 50 mm lens has a focal length of 50 mm. A camera is focused on an
1. 1 answer
2. 752 views
A spherical Christmas tree ornament is5.34 cm in diameter. What is the magniﬁcation of the image of an object placed 10.3 cm
1. 1 answer
2. 1,050 views
The frequency of oscillation of the wave emitted by an FM radio station is 80.9 MHz. Find the period of vibration. Radio waves
1. 0 answers
2. 691 views
A 450.8 N child and a 101.0 N child sit on either end of a 2.2 m long seesaw.How far from the 450.8 N child should the pivot be
1. 2 answers
2. 1,829 views
A student is about to do a push-up. Hercenter of gravity lies directly above P on the ﬂoor, which is 1.2 m from her feet and
1. 1 answer
2. 665 views
A 450.8 N child and a 101.0 N child sit on either end of a 2.2 m long seesaw.How far from the 450.8 N child should the pivot be
1. 1 answer
2. 682 views
A 0.105 kg meter stick is supported at its 40 cm mark by a string attached to the ceiling. A 0.77 kg object hangs vertically
1. 0 answers
2. 647 views
A cannon is rigidly attached to a carriage,which can move along horizontal rails but is connected to a post by a large spring,
1. 2 answers
2. 1,659 views
A cannon is rigidly attached to a carriage,which can move along horizontal rails but is connected to a post by a large spring,
1. 3 answers
2. 3,397 views
A(n) 5.52 g bullet is fired into a(n) 3.07 kg ballistic pendulum and becomes embedded in it.The acceleration of gravity is 9.8
1. 1 answer
2. 1,296 views
Two small spheres of mass 451 g and 695 g are suspended from the ceiling at the same point by massless strings of equal length
1. 5 answers
2. 2,171 views
A(n) 7 g bullet is fired into a 122 g block that is initially at rest at the edge of a frictionless table of height 0.9 m. The
1. 1 answer
2. 508 views