Questions LLC
Login
or
Sign Up
Ask a New Question
Mechanics
Page 8
Questions (40,219)
13. What is the magnitude of the gravitational force that acts on two particles? Assume that particle 1 (m1) is 12 kg and
3 answers
asked by
Suzie
789 views
When a 58g tennis ball is served, it accelerates from rest to a speed of 45m/s. The impact with the racket gives the ball a
7 answers
asked by
Natasha
12,466 views
A car of mass 600 kg is moving at a speed of 20 m/s.it collides with a stationary car of mass 900 kg.if the first car bounces
10 answers
asked by
Mrsi
4,705 views
a boy weighing 350N runs up a flight of stairs consisting of 20 steps each 10cm high in 10 seconds. What is his power? show your
11 answers
asked by
marv
7,637 views
2. At time t =0, the current to the dc motor is reversed, resulting in an angular displacement of the motor shaft given by θ =
6 answers
asked by
bruce
10,064 views
A 0.25-kg block oscillates on the end of the spring with a spring constant of 200 N/m. If the oscillation is started by
5 answers
asked by
Huhu.
7,977 views
a 1.4 kg block slides across a rough surface such that it slows down with an acceleration of 1.25 m/s2. What is the coefficient
5 answers
asked by
ellimac
5,370 views
A 0.075 kg ball in a kinetic sculpture moves at a constant speed along a motorized conveyor belt. The ball rises 1.32 m above
10 answers
asked by
Brian
12,187 views
a 300kg piano is being lifted at a steady speed from ground level straight up to an apartment 10.0m above ground. The crane that
6 answers
asked by
Delli
6,913 views
when a 14.0 kg mass hangs from a spring that has a spring constant of 550nm the spring has a length of 82 cm. determine the
5 answers
asked by
FORM 3G
2,223 views
A 0.50 kilogram ball is thrown vertically upward with an initial kinetic energy of 25 joules. Approximately how high will the
5 answers
asked by
lucy
11,975 views
a force F is applied in horizontal to a 10kg block. the block moves at a constant speed 2m/s across a horizontal surface. the
6 answers
asked by
kristen
4,663 views
a force of 20N compresses a spring with a spring constant of 50N/m. how much energy is stored in the spring?
6 answers
asked by
kristen
8,532 views
1. The weight in the following diagram has a mass of 0.750 kg and the cart has a mass of 0.52 kg. There is a friction force of
5 answers
asked by
liz
5,441 views
An escalator carries 60 people of average mass 70 kg to a height of 5m in one minute.Find the power needed to do this.
6 answers
asked by
Sarah
4,171 views
A pool ball of mass 100g and velocity [5,-4]m/s collides with a stationary pool ball of the same mass. After the collision, the
6 answers
asked by
Sam
2,957 views
A 1.5-kg cart is pulled with a force of 7.3 N at an angle of 40° above the horizontal. If a kinetic friction force of 3.2 N
4 answers
asked by
joe
4,008 views
A man whose mass is 70 kg walks up to the third floor of a building. This is a vertical height of 12 m above the street level.
(a
4 answers
asked by
pakilina
4,060 views
A block and tackle with a velocity ratio of 5 is used to raise a mass of 25kg through a vertical distances of 40cm at a steady
10 answers
asked by
Rose
5,769 views
An object weighs 15N in air and 13N when submerged in water. What is the density of the object.
5 answers
asked by
Striker
6,470 views
To measure the static friction coefficient between a 1.6-kg block and a vertical wall, the setup shown in the drawing is used. A
5 answers
asked by
Donna
7,831 views
A physics book of unknown mass is dropped 5.00 m. What speed does the book have just before it hits the ground? Assume that air
4 answers
asked by
Anonymous
2,818 views
A small block with a mass of m = 0.120 kg is attached to a cord passing through a hole in a frictionless, horizontal surface.
5 answers
asked by
Sonya
3,879 views
The shock absorbers in the suspension system of a car are in such bad shape that they have no effect on the behavior of the
5 answers
asked by
Catherine
3,144 views
A street light is mounted at the top of a 6 meter tall pole. A man 2m tall walks away from the top with a speed of 1.5 m/s along
5 answers
asked by
Erich
2,974 views
On the surface of the Moon, a 91.0-kg physics teacher weighs only 145.6 N. What is the value of the Moon’s gravitational field
4 answers
asked by
Diamind
2,061 views
A constant force acts on a 5.0 kg object and reduces its velocity from 7.0 m/s to 3.0 m/s in a time of 3.0 s. Find the force.
5 answers
asked by
Kiana
2,999 views
A body weighs 0.30N in air. 0.25N when fully immersed in water and 0.27N in a liquid. Calculate the relative density of the
5 answers
asked by
Rejoice
2,392 views
The cannon on a pirate ships shoots cannon balls with a speed of 350m/s (the muzzle velocity). The cannon can be adjusted to
5 answers
asked by
Kira
1,685 views
A locomotive is pulling an empty freight car with a constant acceleration on a horizontal surface. The mass of the locomotive is
4 answers
asked by
bub
2,724 views
A 1200 lb sleigh is pulled along a horizontal surface at uniform speed by means of a rope that makes an angle of 30 degrees
5 answers
asked by
Lian
3,955 views
You are riding your bike and the tire has a radius of 0.33 m and mass 1.5 kg rotating at 98.7 rad/s. You just notice you are
4 answers
asked by
Anonymous
4,186 views
If α = 40°, β = 60°, and M = 4.0 kg, determine the tension in string 1 & 2.
-------/ / 1 /2 / . . . Blockmass Alpha is on the
4 answers
asked by
joy
4,555 views
A block of mass 2kg is pushed along a table with a constant velocity by a force of 5N.When the push is increased to 9N,what is
9 answers
asked by
Luc
2,857 views
A golf ball and a bowling ball both move at the same speed and collide head on do you think will move backward when they hit?
4 answers
asked by
l
1,058 views
Four 7.5 kg spheres are located at the corners of a square of side 0.60 m. Calculate the magnitude and direction of the
9 answers
asked by
myra
10,120 views
a machine gun fires 10 bullets persecond into a target. each bullet weights 20 gm and had a speed of 1500 m per second .find the
6 answers
asked by
sunny
2,343 views
A force of 80N acts on a body initially at rest and moves 72m in 6s. If the force is removed after 6s calculate how far the body
5 answers
asked by
jay
1,462 views
A bowling ball rolls without slipping up a ramp that slopes upward at an angle (beta) to the horizontal. Treat the ball as a
4 answers
asked by
Joe
7,697 views
A Frisbee is thrown horizontally with a speed of 12 m/s. If the Frisbee moves a horizontal distance of 15 m, how long will it
5 answers
asked by
Jhoy
4,209 views
What is the average power output of a weightlifter who can lift 260 kg to a height of 1.9 m in 1.8 seconds?
5 answers
asked by
Ash
6,676 views
Calculate the work done by a stone mason lifting a stone of mass 15kg through a height of 2m.Take g=10N/Kg
5 answers
asked by
Peter
1,686 views
determine the effort required to lift a load of 100N using a single fixed pulley
5 answers
asked by
irene
767 views
a uniform half metre rule is freely pivoted at the 20 cm mark and its balance horizontaly when a body of mass 30g is hung 5cm
6 answers
asked by
Anonymous
2,483 views
A child and sled with a combined mass of 50.0 kg slide down a frictionless hill that is 7.34 m high. If the sled starts from
4 answers
asked by
lili
4,992 views
The motor for an elevator can produce 2200 W of power. The elevator has a mass of 1100 kg complete with contents . At what
5 answers
asked by
Melissa
3,113 views
a simple pendulum has a period of 4.50secs,when the length is shortened by 1.2m the period is 2.50secs. calculate the original
4 answers
asked by
pauline
1,475 views
An object A of mass 20kg moving with an initial velocity of 3m/s makes a head on collision with object B mass 10kg moving with a
5 answers
asked by
Chris
2,651 views
In the 1950s, an experimental train that had a mass of 3.30 104 kg was powered across level track by a jet engine that produced
6 answers
asked by
dan
4,592 views
A 23 kg child goes down a straight slide inclined 38 degrees above horizontal. The child is acted on by his weight, the normal
6 answers
asked by
Leanna
5,627 views
Pages
1
2
3
4
5
6
7
8
9
10
Parent Categories (43)
Automotive
Automotive Services
Car Repair
Dynamics
Engineering
Engineering and Technology
Force
Forces
Forces and Motion
Game Design
Gaming
Horseshoes
Kinetic Energy
Language Arts
Language/Communication
Math
Mathematics
MDA Framework
Motion
Physical Science
Physical Sciences
Physics
Physics and Astronomy
Physics and Engineering
Physics and Mathematics
Physics Education
Physics or Science
Physics/Energy and Forces
Physics/Engineering
Physics/Mathematics
Physics/Science
Professional Services
Relativity
Science
Science and Engineering
Science and Physics
Science and Technology
Science or Physics
Science/Engineering
Science/Physics
Statics
Technology
Work and Energy