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Physics
Page 13
Questions (147,602)
A skier wants to build a rope tow to pull herself up a ski hill that is inclined at 15 with the horizontal. Calculate the
5 answers
asked by
Albert
5,498 views
The temperature of earth atmosphere drops 5°C for every 1km elevation above the earth surface. If the air temperature at ground
5 answers
asked by
Eurt
8,184 views
A 0.230-kg wooden rod is 1.55 m long and pivots at one end. It is held horizontally and then released.
1) What is the angular
4 answers
asked by
anonymous
3,888 views
1. In a standing wave, the medium at the tip of a loop is
a) showing destructive interference b) not moving c) at the original
6 answers
asked by
Liz
2,850 views
An airplane is heading north at an airspeed of 500 km/hr, but there is a wind blowing from the northwest at 50 km/hr. how many
5 answers
asked by
Dan
4,079 views
the fence posts around a large pasture are 2.5m apart. a horse starts running west beside the fence. when the horse passes the
5 answers
asked by
Sarah
2,450 views
The sprockets and chain of a bicycle are shown in the figure. The pedal sprocket has a radius of 4 in., the wheel sprocket a
4 answers
asked by
monic
11,338 views
Two rocks of very different sizes are dropped from the same height. Which value will be different for the two rocks?(1 point)
the
10 answers
asked by
Help plz
6,234 views
a resistor R is connected in parallel with a 10-ohm inductive reactance. the combination is then connected in series with a 4ohm
4 answers
asked by
Student
2,075 views
How far apart are an object and an image formed by a 75.0cm focal length converging lens if the
image is 2.5x larger than the
4 answers
asked by
Timson Wakrit
2,775 views
A catapult launches a boulder with an upward velocity of 184 feet per second. The height of the boulder, (h), in feet after t
11 answers
asked by
SkatingDJ
6,446 views
How long does it take to fully charge a 5µF capacitor in series witha 5 Mega Ohm resistor
5 answers
asked by
Matt, AGAIN
3,384 views
DISTANCE-TIME for RUNNERS
Time(s) 1 2 3 4 Sally's Distance(m) 2 4 6 8 Alonzo's Distance(m) 1 2 2 4 Make a distance-time graph
6 answers
asked by
Ashley
4,688 views
mgh=1/2mv^2, solve for the variable v
7 answers
asked by
Lisa
9,962 views
If a student measures the length of the pendulum to be 0.510m in a simple pendulum experiment and determines that the period of
3 answers
asked by
Precious
386 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
6,436 views
An object located in front of a concave mirror with a radius of curvature of 80 cm produces an invert image that is three times
7 answers
asked by
ALan
3,164 views
Question Four
A simple pendulum is used in a physics laboratory experiment to obtain an experimental value for the gravitational
5 answers
asked by
Jay Peels
1,263 views
a diver dives from a cliff .when her centre of gravity is 46 ft above the surface of the water. her initial vertical velocity
7 answers
asked by
E
2,150 views
1. A 2.5 kg mass at rest on a horizontal surface is acted upon by an applied horizontal force of 150 N. A frictional force of
23 answers
asked by
Lisa
3,475 views
(1) Which statement about the number of protons and neutrons in a nuclear change is correct?
(A)The total charge before and after
4 answers
asked by
Student
1,751 views
A car of mass 760kg travel with a velocity of 14.0ms-1 . If the brakes are applied , the car travels a distance of 55.0m before
5 answers
asked anonymously
180 views
Waves travelling along a string have a wavelength of 2.4m. When the waves reach the fixed end of the string, they are reflected
5 answers
asked by
Kayla
3,070 views
A coil of 50 ohm resistance and of 150mH inductance is connected in parallel with a capacitor 50microF. The source voltage is
4 answers
asked by
Student
3,795 views
A piece of wood float on water and sinks in a methylated spirits .if the density of the wood is 0.8g/cm,explain why it would
12 answers
asked by
Raymond
4,626 views
Mary is riding a merry-go-round, whose radius is 25 feet and which is turning 36 degrees per second. Seeing a friend in the
5 answers
asked by
Mike
3,107 views
A tennis ball is projected vertically upwards from the top of a 55 m cliff by the sea. Its height from the point of projection,
5 answers
asked by
Mishka
2,548 views
if it takes 31,500 joules of heat to warm 750g of water, what was the temperature change?
My answer: Q = (M) (DeltaT) (c) Delta
5 answers
asked by
sam
6,025 views
Which of the following choices correctly explains why light separates into colors when moving through a prism?
a)The different
7 answers
asked by
Hi
5,420 views
What are examples of inclined planes in the kitchen?
5 answers
asked by
danny123
3,195 views
Electric bulb is Marked 60 watts 120 volt what is the resistance of filament of bulb
4 answers
asked by
Sunny
5,444 views
make m the subject of the formula mg-t= ma
5 answers
asked by
esther edomoh
515 views
When measuring specific heat, why should your final temperature be the maximum temperature reached calorimeter?
4 answers
asked by
miyabi
2,774 views
How do simple machines make work easier?(1 point)
1.They decrease the distance needed between a person and an object, allowing
6 answers
asked by
wha
1,350 views
1. Scientists seek to acquire knowledge and understanding of the real world through the formulation, testing, and evaluation of
4 answers
asked by
Idk name here
1,531 views
A load of 30N is raised 2m when an effort of 10N moves 8m calculate the velocity ratio and efficiency of a machine
5 answers
asked by
Odukoya
1,434 views
X-ray technicians wear protective gear to keep them safe from the X-rays. Why are X-rays dangerous?(1 point)
Responses They have
4 answers
asked by
osihxbdy8cgbefgb8y
224 views
A car travels along a straight road for 30 seconds starting at time t = 0. Its acceleration in ft/sec2 is given by the linear
6 answers
asked by
Ke$ha
5,490 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
4,659 views
A horizontal force of 804 N is needed to drag a crate across a horizontal floor with a constant speed. You drag the crate using
5 answers
asked by
Anonymous
3,582 views
A simple lever is used to lift a heavy load. When a 60-N force pushes one end of the lever down 1.2 m, the load rises 0.2 m.
7 answers
asked by
Peg
11,396 views
A solid aluminum ingot weighs 89 N in air. What is its volume? The ingot is suspended from a rope and totally immersed in water.
4 answers
asked by
Anonymous
6,380 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
5,343 views
Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/s in 2.0 s.
What is the net force acting on the body?
4 answers
asked by
Emily
11,521 views
What is the value and the direction of an electric field at a distance of 2.5 m from a +1 nC charge?
approximately 145 V/m
6 answers
asked by
Katy
2,313 views
Wayne pulls a 305 N sled along a snowy path using a rope that makes a 45.0° angle with the ground. Wayne pulls with a force of
5 answers
asked by
Merlin
6,021 views
A ball falls from a shelf. Assuming there is no friction, why is the conservation of mechanical energy independent of mass?
Mass
7 answers
asked by
Anonymous
3,577 views
I need help with this question please. A solid cylinder of mass m and radius R has a string wound around it. A person holding
7 answers
asked by
Una
7,986 views
a 1 kg mass is attached to a spring hanging vertically and hangs at rest in the equilibrium position. the spring constant of the
5 answers
asked by
Jess
4,202 views
The luminosity of the Sun is 4*10^33 ergs/s, and its distance to the Earth is 1.5 * 10^13 cm.
You are tasked with building a
4 answers
asked by
MrMayor
1,816 views
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