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Physics
Page 6
Questions (149,769)
¬Calculate the period of oscillation of a simple pendulum of length 1.8 m, with a bob of mass 2.2 kg. What assumption is made
4 answers
asked by
Anonymous
2,096 views
An elastic string of length 20cm extends to 24cm when it supports a weight of 50N. Calculate the energy stored in the string.
5 answers
asked by
Shola
1,615 views
A baseball player puts a baseball on a batting tee. The baseball bat is able to deliver 4.0x10^5 W of power and is in contact
5 answers
asked by
R
3,628 views
In the Dark - Quick Check
1. Weakly interacting massive particles/black holes/massive compact halos 2. Scientists have hypotheses
5 answers
asked by
Hey Lover <3
2,470 views
A mechanic wants to use a compound pulley to lift a go-kart from the ground to work table, a distance of 1.2 meters. Without the
4 answers
asked by
the real BARNY THE DINO :)
688 views
A backpack full of books and an empty backpack are dropped from the same height. If there is no air resistance, which bag will
3 answers
asked by
no name
331 views
1. A spring bearing a 10-pound weight has stretched 0.5 inches. If you were to increase the weight to 15 pounds, how many inches
5 answers
asked by
John Gomez
4,459 views
1. why do two electrons repel when they interact? because they both have similar negative electric charge.
2. which of the
10 answers
asked by
connexus student
9,325 views
Nuclear reactions can be written out in equation form with information about the nuclei that take place in the fusion reaction
6 answers
asked by
Lucid
4,082 views
I have several questions
4: The image above shows particles in a medium. Which of the following shows the best conditions for a
6 answers
asked by
Roover
5,125 views
If 500 J of work are required to carry a charged particle between two points with a potential difference of 40V, the magnitude
6 answers
asked by
susane
17,626 views
A car starts from rest and travels for 5.0 s with a uniform acceleration of + 1.5 m/s2. The driver then applies the brakes,
5 answers
asked by
sebastian
12,851 views
Calculate the work done in joules when 1.0 mole of water vaporizes at 1.0 atm and 100C. Assume that the volume of liquid water
5 answers
asked by
Monty
12,408 views
1.A catapult launches a boulder with an upward velocity of 120 ft/s. The height of the boulder, h, in feet after t seconds is
7 answers
asked by
GummyBears
8,050 views
The velocity of a particle on the x-axis is given by the differential equation dx/
dt= t^2/ 2 and the particle is at x = 4 when t
6 answers
asked by
John
1,848 views
Two masses are hung are connected by a light cord and hung from a frictionless pulley of negligible mad are shown. Mass
6 answers
asked by
Kam
8,058 views
Consider the two-slit interference experiment. Electromagnetic radiation passes through the two slits that are a distance 0.0287
7 answers
asked by
Mimi
1,230 views
I was wondering if my answers are correct.
1. A 50kg person is taking a ride on an elevator travelling up at a steady speed of
7 answers
asked by
Liz
5,063 views
A ball is thrown upward with a speed of 40 feet per second from the edge of a cliff 500 feet above the ground. What is the speed
4 answers
asked by
Alice
4,299 views
A mass is oscillating with amplitude A at the end of a spring.
How far (in terms of A) is this mass from the equilibrium position
5 answers
asked by
Joe
4,986 views
A radar gun was used to record the speed of a car (in feet per minute) during selected times in the first 2 minutes of a race.
5 answers
asked by
Deondre
4,131 views
A mechanic uses a chain and block to lift a 875-kg engine 4.00 m to the top of the garage. The downward force in the chain over
5 answers
asked by
Holly
4,409 views
Maria throws a ball straight up with an initial velocity of 10 m/s.
What is its velocity at the highest point? What is its
7 answers
asked by
Joyce
14,253 views
The force of gravity on different planets is shown in the table below. Place the objects below in order, from smallest weight to
3 answers
asked by
X
178 views
Forces with magnitudes of 250 pounds and 130pounds act on an object at angles 45degrees and -60degrees respectively with the
4 answers
asked by
Anonymous
4,584 views
How much does a 20ft x 10ft x 8ft swimming pool filled with water weight? Assume the water has a weight density of 62 lbs/ft3.
I
6 answers
asked by
Hannah
1,851 views
How do electrons flow through an electric circuit?(1 point)
Responses The device that is using the electricity pulls electrons
4 answers
asked by
A
288 views
Why is copper wire a better conductor of electricity than carbon fiber?(1 point)
Copper (Cu) has no loose electrons. Copper (Cu)
3 answers
asked by
DINO NUGGETS
296 views
1 litre of water has a mass of 1 kg. Find the mass of a bottle containing 1.5l of water if the bottle has a mass of 150g.
7 answers
asked by
Rajini
2,467 views
An oil tank is 3m long, 3 m wide and 2 m high, when it is full of coconut oil specific gravity of 0.90, find the downward force
5 answers
asked by
mmmm
2,259 views
A 40 kg ball is pukled to one side until it is 1.5 above itd lowest point. What will be its velocity as it passes through its
5 answers
asked by
Merely
4,202 views
A wheel with rotational inertia I is mounted on a fixed, fricitonless axle. The angular speed w of the wheel is inccreased from
11 answers
asked by
Tammy
18,045 views
Four resistors of resistance 1ohm,2ohms,3ohms,5 ohms are connected in series and afterwards in parallel. Calculate the combined
16 answers
asked by
Princess
6,029 views
A 30 ohm resistor is connected in parallel with a variable resistance R. The parallel combination is then connected in series
4 answers
asked by
Oscar
13,524 views
A 10uf capacitor is charged from a 30v supply and then connected across an uncharged 50uf capacitor.Calculate
a. The final
5 answers
asked by
Gift
18,972 views
Two strings of tree lights, each with a resistance of 200 Ω, are connected together in series. What is their combined
5 answers
asked by
alaweed
2,151 views
a grasshopper jumps at an angle 50 degrees from the ground with an initial velocity of 5 m/s. when air resistance is absent,
5 answers
asked by
Clevy
2,139 views
Charges of +2.0, +3.0 and -8.0µC are placed at the vertices of an equilateral triangle of a side 10 cm. Calculate the magnitude
5 answers
asked by
VHCP
3,675 views
An iceberg has specific weight of 9000 N/m^3 in n ocean, which has a specific weight of 1000 N/m^3. Above the water surface, it
5 answers
asked by
Alex
3,132 views
A large swinging ball is used to drive a horizontal iron spike into a vertical wall. The centre of the ball falls through a
7 answers
asked by
physicslover
3,175 views
Which of the following statement best explains why your feet feels cold, when you stand on a slab of ice?
3 answers
asked by
Anurag
963 views
A horizontal pipe has a cross sectional area of 40.0 cm^2 at the wider portions and 10.0 cm^2 at the constriction. Water is
7 answers
asked by
Jen
2,560 views
Dynamics question please help i am stuck...!
A model helicopter of mass 5.0 kg rises with constant acceleration from rest to a
4 answers
asked by
Jinx007
1,704 views
Which electromagnet will produce the strongest magnetic force.
1 answer
asked anonymously
57 views
A hole 3cm in diameter is to be punched out of a steel plate 8cm thick. The shear stress of the material is 670GPa. What load is
5 answers
asked by
Danny
5,224 views
A 0.5kg cart connected to light spring for which the force constant is 20 Nm on horizontal frictionless air track. Calculate the
5 answers
asked by
Anonymous
7,589 views
A boy running a foot race rounds a flat curve of 50 ft radius. If he runs at rate of 15 mph, at what angle with the vertical
4 answers
asked by
Carl
4,191 views
Which scenario shows radiation?(1 point)
Responses Eggs boil in a pot of water. Eggs boil in a pot of water. The air under a
4 answers
asked by
meli
571 views
A weight is attached to a spring that is oscillating up and down it takes 6 sec for the spring to complete one cycle and the
5 answers
asked by
Stan
6,478 views
A steel wire 40 m long is suspended between two fixed points 20 m apart.
A force of 375 N pulls the wire down at a point 15 m
4 answers
asked by
Alex
2,604 views
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