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Physics
Page 69
Questions (146,487)
Newton's Second Law Quick Check
1 of 41 of 4 Items Question Blake and Drew are playing horseshoes. Blake takes the first turn,
7 answers
asked by
Answer
689 views
Find the required angular speed, ω, of an ultracentrifuge for the radial acceleration of a point 2.00cm from the axis to equal
4 answers
asked by
Anonymous
15,652 views
A glass cylinder with a radius of 7cm has water up to a height of 9cm. A mental cube of 5 1/2cm edge is immersed in it
6 answers
asked by
Anonymous
1,704 views
I was wondering if my answers are correct. Thanks in advance.
1. A boy pushes down on a car rolling horizontally down the road.
7 answers
asked by
Liz
8,824 views
An ice cube is left on the kitchen counter. After some time, the ice cube melts into a small puddle of water.
According to the
3 answers
asked anonymously
56 views
1) Find the final velocity of the two balls if the ball with velocity
v2i = −21.0 cm/s has a mass equal to half that of the
4 answers
asked by
Tayler Jones
1,589 views
Consider the gravitational potential, kinetic, and total mechanical energies of a cart moving down an inclined ramp. (Also, let
4 answers
asked by
Tim
3,224 views
Gabriele enters an east-w straight bike path at the 3.0-km mark and rides w at a constant speed of 8.0 m/s. At the same time,
4 answers
asked by
Matt
2,729 views
A ball is dropped from the roof a building which is 256 m high. The height h of the ball at any instant t is described by
h(t) =
4 answers
asked by
malik
1,227 views
A Lamborghini sports car can accelerate from zero to 60 mph in 4 seconds. It can decelerate from 60 mph to rest in 120 ft. What
4 answers
asked by
Anonymous
3,199 views
Each charge of 3 micro coulomb are placed at 3 corners of a square whose diagonal is 6cm long. Find the field intensity at the
3 answers
asked by
bareera
1,114 views
i just want to know form where i got on this formula the 4.9t² on this formula s=4.9t²+Vot+h because the book only say that a
3 answers
asked by
steve Alexander
766 views
A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 25.0° and the angle of refraction
4 answers
asked by
julie
1,127 views
4. What measurable property/properties affects the period of a pendulum?
7.Give another example of periodic motion other than
5 answers
asked by
Sherianna
755 views
Which observation is inconsistent with the ideal gas law?(1 point)
Responses When pressure is held constant and volume increases,
2 answers
asked by
blu
126 views
Kinetic and Potential Energy Quick Check
Science 8 Q1 / Energy of Motion An object falls through the air, gaining speed as it
11 answers
asked by
iuytredszdxcbnmjkjiu876543wq2asZxbnmkoiu8y76543wq2
577 views
The linear expansivity of a material of a cube is 12×10^-1/k if the length of each side of the cube is 10cm find the area of
2 answers
asked anonymously
79 views
A 120-MT concrete beam is lifted from the floor by two tandem heavy lift cranes up to a target height of 7.5 meters.
Calculate
2 answers
asked anonymously
67 views
Which of the following is the effect of Bernoulli’s Principle?
High velocity fluids such as waves, current or wind can drag
2 answers
asked anonymously
103 views
Which statement includes a description of velocity? (1 point)
A car travels east at 45 kilometers per hour. • A bicycle moves 8
7 answers
asked anonymously
266 views
How to formulate a partial differential equation for modelling a phyics and give examples. Explain it in detail along with
2 answers
asked by
Dave
50 views
What is a newton? (1 point)
• the unit in which force is measured • a force that pulls objects toward the ground a force that
7 answers
asked anonymously
653 views
A line between a planet and the sun sweeps out two equal areas at different places as it moves along its orbit. Which factor
3 answers
asked anonymously
114 views
A line between a planet and the sun sweeps out two equal areas at different places as it moves along its orbit. Which factor
7 answers
asked anonymously
126 views
An athlete is practicing shotput using a 16-pound shot, and he throws it 40 feet. He then uses a 12-pound shot and throws it 50
3 answers
asked by
hi
811 views
Which example represents a class 2 lever
1 answer
asked by
Austin Storlien
399 views
What is the function of the core of an electromagnet?(1 point)
Responses The core provides the conductor through which electric
1 answer
asked by
the real BARNY THE DINO :)
148 views
An important property of fiber optic is
1 Degradation 2. Refraction 3. Radiation 4. Noise
3 answers
asked by
Usman atiq
103 views
Which statement includes a description of velocity? (1 point)
A marble rolls 30 centimeters away from the table. • A student
7 answers
asked by
Quira
325 views
A transformer designed to convert a 220 V a.c mains to 10V has 3300 turns on primary coil. How many turns should be in the
1 answer
asked by
Precious
223 views
A satellite orbiting Earth at an orbital radius r has a velocity v. Which represents the velocity if the satellite is moved to
13 answers
asked by
jawon
125 views
Consider a hydrogen atom in the ground state. What is the energy of its electron?
3 answers
asked by
macodnald
2,104 views
A ball is projected upward from the ground. Its distance in feet from the ground in t seconds is given by
s(t) = -16t^(2)+128t At
2 answers
asked by
Keonn'a
777 views
a helical spring fixed by the upper end carries a load of 5kg attached to its lower end .Mass is set into vibration and is
2 answers
asked by
japhite
502 views
A fire truck emitting a 450 Hz signal passes by a stationary detector. The difference in frequency measured by the detector is
3 answers
asked by
R
2,620 views
a body is projected at an angle of 60degree to the horizontal with a velocity of 150m/s calculate the time it take to reach the
2 answers
asked by
Mary Uchendu Chika
517 views
A 950-kg car is initially travelling at 60 km/hr. If the speed increases so that its kinetic energy increases by 165 kJ,
2 answers
asked by
baz
610 views
Matters interactions unit test
3 answers
asked anonymously
49 views
What is the effect of heat on fruits
3 answers
asked anonymously
98 views
what magnetic force would an electron experience due to Earth’s magnetic field if it were moving at 3x10E6 m/s directly away
1 answer
asked by
seanmarch58
928 views
An athlete runs from one end to the other end of a semicircular track whose radius is 70m.what is the total distance covered by
4 answers
asked by
tania
1,272 views
A student collects data during an investigation about inertia and acceleration. If the force acting on the objects is constant,
3 answers
asked anonymously
68 views
A 2.50-kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off
1 answer
asked by
Anonymous
508 views
In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of
2 answers
asked by
manu
570 views
What is the maximum displacement of a wave from its equilibrium position called?
2 answers
asked by
UnknownGmr
9,393 views
What factors contribute to the perceived shininess of an object?
2 answers
asked by
baka baka
9,669 views
Why do two people pushing on a wall from opposite sides, result in the wall not moving?
2 answers
asked by
Steve
2,618 views
A builder pushes
a wheelbarrow loaded with sand ,from rest at point A,up a ramp of unknown length ,which is inclined at unknown
1 answer
asked by
lucky
1,002 views
A cart of mass M1 = 5.00 kg and initial speed = 3.00 m/s collides head on with a second cart of mass M2 = 3.00 kg at rest.
1 answer
asked by
Morgan
466 views
A tractor pulls a tree trunk across horizontal piece of ground. If the force in the chain is 3000N and the chain forms an angle
1 answer
asked by
nthabeleng
372 views
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