An electric motor performs 2000 j of work while lifting a

Assignment Help Physics

Reference no: EM13461169

1. An electric motor performs 2000 J of work while lifting a 50 kg mass. How far does it lift the mass?It it takes the motor 10 seconds to accomplish this action, what is its power?

2. What is the KE (in J) of a 12 g .45 ACP bullet with a muzzle velocity of 300 m/s? What is its momentum?

3. A standard baseball weights 145 g. If it is thrown vertically with an initial velocity of 60 mph, what is its potential energy change at its highest point? How high does the baseball rise? Neglect air friction.

4. Consider the surface of a pool table to be a closed system. A cue ball traveling at 2 m/s hits the eight ball. The cue ball stops dead, and the eight ball rolls away at 2 m/s. After colliding with other balls and the bumpers, the eight ball finally stops. At what point, in this scenario, is momentum conserved? At what point is energy conserved? Be specific.

5. A 1200 kg Honda Civic traveling at 100 km/hr on a country road hits a 120 kg deer that's standing motionless in the middle of the lane. The deer and windshield wind up in the front seat. What is the velocity of the car + deer system in the moment immediately following the collision?

Reference no: EM13461169

Questions Cloud

What ethical perspectives or lenses did you use to make : write a 700- to 1050- word reflective journal in which you address the following middot paper answers the following

Professional baseball pitchers can deliver a pitch which : professional baseball pitchers can deliver a pitch which can reach the blazing speed of 100 mph miles per hour. a local

Explain how your individual values drive your actions and : explain how your individual values drive your actions and behaviors and analyze the alignment between your values and

A neutron star and a black hole are 2400e12 m from each : a neutron star and a black hole are 2.400e12 m from each other at a certain point in their orbit. the neutron star has

An electric motor performs 2000 j of work while lifting a : 1. an electric motor performs 2000 j of work while lifting a 50 kg mass. how far does it lift the mass?it it takes

How can a request for information assist a health care : how can a request for information assist a health care organization with the selection of a new health information

A car is driving along a straight section of highway : 1. a car is driving along a straight section of highway between oklahoma city and tulsa. at one point in time the car

Having rules in place is only part of the solution in : having rules in place is only part of the solution in virtually every business setting. in addition to the rules other

Compare the feasibility and efficiency of producing public : compare the feasibility and efficiency of producing public goods by tax dollars versus producing them jointly with

User Account

All Pages