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Physics
Page 33
Questions (147,196)
What is the decrease in elevation of a 4-kg body whose kinetic energy increases from 20 J to 100 J as a result of moving
4 answers
asked by
Janine
1,245 views
Where is the fulcrum in this situation?
(guy lifting a rock with a bar) It is the point where the bar touches the smaller rock.
4 answers
asked by
Subzero
741 views
An elite runner burns 1000 Calories (4,180,000 J) in one hour. How much power does this correspond to?
4 answers
asked by
damien
1,619 views
a framed picture of weight 15N is to be hung on a wall using a price of string . the end of the string are tied to two points
6 answers
asked by
soumya
2,525 views
a hydrauli press has a ram of 30 cm diameter and plunger of 4.5cm diameter. find the the weight lifted by the hydraulic press
7 answers
asked by
sam
9,659 views
A rocket is launch from the top of an 40 foot cliff with an initial velocity of 140 feet per second, the height h of the rocket
4 answers
asked by
Wes
1,982 views
name two physical properties of an object about which you can gather qualitative data
7 answers
asked by
lola
1,171 views
a cylinder that is 20 cm tall is filled with water. If a hole is made in the side of the cylinder, 5cm below the top level, how
4 answers
asked by
zoe
3,808 views
Study the distance-time graph of an object’s motion.
Velocity time graph starts at (0, 10) goes to (4, 20) goes to (8, 40) and
4 answers
asked by
Klauus
1,273 views
a wave has a frequency of 2 Hz. find its period ?
please show work.....
5 answers
asked by
HIMAR
4,065 views
(4)_____ was a physicist who developed the Three Laws of Motion. (5)_____ states that ”the (6)_____ of an object is equal to
4 answers
asked by
meghan
945 views
The temperature increased steadily from 6 AM to 2 PM. What will the graph of the data look like?
A. a horizontal line, moving
5 answers
asked by
Adellina~
608 views
a child on a swing goes backwards and forwards 100 times in 5 minutes. calculate period of the oscillation and freuency in
4 answers
asked by
Anonymous
1,234 views
A car and an attached trailer have a combined mass of 3,000 kg. The car and trailer are moving on the highway at a velocity of
4 answers
asked by
Faoruk
2,004 views
A ball is thrown straight down from the top of a 220-foot building with an initial velocity of -22 feet per second. What is its
7 answers
asked by
Susana
21,668 views
How much work must be done to stop a 1250 kg car traveling at 105 km/h?
10 answers
asked by
Emily Grossman
13,764 views
A helicopter is ascending vertically with a speed of 5.20 m/s. AT the height of 125m above the earth, a package is dropped from
6 answers
asked by
Bunty
24,241 views
A ball of mass 0.4 kg, initially at rest, is kicked directly toward a fence from a point 20 m away, as shown below.
The velocity
5 answers
asked by
Luma
6,062 views
Suppose a 65-kg boy and a 45-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration
10 answers
asked by
Liz
10,998 views
A major leaguer hits a baseball so that it leaves the bat at a speed of 30.0 m/s and at an angle of 36.9° above the horizontal.
5 answers
asked by
Anonymous
7,841 views
A ball of mass 4 Kg falls to the floor; it lands with a speed of 6 m/s.it bounces off with same speed.show that its momentum has
11 answers
asked by
Eyasu Abraham
3,620 views
A car has a uniform velocity of 108km/h. How far does it travel in 1/2 min
17 answers
asked by
Godspower
7,137 views
As a baseball is being caught, it's speed goes from 30.0m/s to 0m/s in about 0.0050s. The mass of the baseball is 0.145kg
A) what
5 answers
asked by
Sandara
3,794 views
If the centripetal force on an object in uniform circular motion is increased, what is the effect on (a) the frequency of
6 answers
asked by
John
3,951 views
A car is traveling on a level horizontal rode comes to a bridge during a storm and finds the bridge washed out. The driver must
5 answers
asked by
Mark
4,953 views
Two pole-vaulters just clear the bar at the same height. The first lands at a speed of 8.50 m/s, and the second lands at a speed
5 answers
asked by
Sam
5,007 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.
7,939 views
Two forces, of magnitudes F1= 80.0N and F2= 50.0N, act in opposite directions on a block, which sits atop a frictionless
5 answers
asked by
physics please show steps
13,078 views
When a block slides a certain distance down an incline the work done by gravity is 300 J. What is the work done by gravity if
6 answers
asked by
Tammy
9,461 views
A block of mass 5.53 kg lies on a frictionless horizontal surface. The block is connected by a cord passing a. over a pulley to
4 answers
asked by
Emeera
5,733 views
an object of mass 1kg falls a distance 5m on a horizontal surface and bounce to a vertical height of 2m.calculate the change in
12 answers
asked by
faith
4,422 views
An object carries a charge of -8.0 uC, while another carries a charge of -2.0 uC. How many electrons must be transferred from
5 answers
asked by
Dan
7,733 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
12,132 views
A hollow, spherical shell with mass 2.00 kg rolls without slipping down a slope angled at 38.0 degrees. (a) Find the
4 answers
asked by
Karla
12,715 views
By what factor does the gravitational force between two objects increase if one object doubles in mass and the distance between
6 answers
asked by
Katy
2,844 views
If the resultant force acting on a 2kg object is equal to (3i+4j)N, what is the change in kinetic energy as the object moves
6 answers
asked by
ATT
7,788 views
A positive charge q1 = 2.70 uC on a frictionless horizontal surface is attached to a
spring of force constant k as in the figure.
6 answers
asked by
Brette
7,365 views
At a factory workers are draining a large vat containing water. The water is being drained at a constant rate. The table below
5 answers
asked by
ben
2,678 views
A searchlight rotates at a rate of 2 revolutions per minute. The beam hits a wall located 8 miles away and produces a dot of
5 answers
asked by
Reonea
9,179 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
11,920 views
70-kg man jumps off a raft 2 meter squared moored in a freshwater lake. By how much does the raft rise?
5 answers
asked by
yin
4,815 views
A small ball with a mass of 0.6 kg and a velocity of 12 m/s hits another ball with the same mass. The first ball stops moving,
6 answers
asked by
kiley
3,003 views
A particle moves in a straight line with velocity t^-2 - 1/9 ft/s. Find the total displacement and total distance traveled over
4 answers
asked by
D
3,459 views
A ball of mass 0.6 kg, initially at rest, is kicked directly toward a fence from a point 20 m away, as shown below.
The velocity
4 answers
asked by
Lucy
7,169 views
Two currents from different sources flow in opposite directions through a resistor. I1 is
measured as 79 mA on a 100 mA analog
5 answers
asked by
mary
4,387 views
If the net force of a system is a non-zero constant and the mass decreases, what must be true about the acceleration?
The
5 answers
asked by
madisson
2,861 views
A 156 g hockey puck is initially travelling with a speed of 18 m/s. The force of friction acting on the puck is 0.30 N. If no
5 answers
asked by
sandra
1,837 views
A person reaches a maximum height of 65cm when jumping straight up from a crouched position. During the jump itself, the
4 answers
asked by
Ash
5,474 views
Melting Snowball: A spherical snowball melts at a rate proportional to its surface area. Show that the rate of change of the
5 answers
asked by
Eli
4,686 views
An green hoop with mass mh = 2.4 kg and radius Rh = 0.14 m hangs from a string that goes over a blue solid disk pulley with mass
10 answers
asked by
stewart
25,069 views
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