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Physics
Page 27
Questions (147,392)
You are playing with a yo-yo with a mass of 225 g. The full length
of the string is 1.2 m. (a) Calculate the minimum speed at
5 answers
asked by
kenny
738 views
A rock dropped from the top of a building takes 0.55 s to fall the last 50% of the distance from the top to the ground.How tall
6 answers
asked by
Anonymous
2,821 views
A body weight 0.3N in air,0.25N when fully immersed in water and 0.27N when fully immersed in liquid. calculate a. It's water
5 answers
asked by
Elias
467 views
Fig.19 shows a crane lifting a car of mass 850 kg at constant velocity through a height of 12m in a time of 40s. The crane has a
5 answers
asked by
cake
3,476 views
Unpolarized light passes through six successive Polaroid sheets each of whose axis makes a 59 degree angle with the previous
5 answers
asked by
Lauren
3,775 views
A block of weight 3.8N is launched up a 30 degree inclined plane of length 2.25m by a spring with spring constant 2.35kN/m and
4 answers
asked by
Harold
4,066 views
a block and tackle system of pulleys consisting of 5 pulleys is used to raise a load of 500N through a height of 12m. if the
4 answers
asked by
faith
2,036 views
A person pushes a 14.0-kg lawn mower at constant speed with a force of F = 88.0 N directed along the handle, which is at
an angle
5 answers
asked by
mrmr
2,843 views
A spring stretches by 6cm when supporting a load of 15N ,what load would make the spring extend by 25mm
7 answers
asked by
Mish
1,036 views
A construction worker drops a hammer from a height of 25 m.
How long will it take the hammer to hit the ground? Use the formula
6 answers
asked by
Katiana
3,013 views
Convert 33°c and 43°c to Kelvin scale
5 answers
asked by
Seyi
1,359 views
the magnetic force on a straight 0.15m segment of wire carrying a current of 4.5 A is 1.0 N. What is the magnitude of the
4 answers
asked by
ana
3,726 views
In a lab experiment, the decay of a radioactive isotope is being observed. At the beginning of the first day of the experiment
4 answers
asked by
Anonymous
2,215 views
In the Sun, an ionized helium atom makes a transition from n =6 state to the n = 2 state, emitting a photon. Can that photon be
4 answers
asked by
qwer
3,026 views
A stone is projected vertically upwards with a speed of 30ms from the top of a tower of height 50m. Neglecting air resistance
6 answers
asked by
josh
2,789 views
A uniform meter stick with a mass of 210 g is supported horizontally by two vertical strings, one at the 0 cm mark and the other
5 answers
asked by
Eliza
3,409 views
A horizontal force with a magnitude of 3.0 newtons applied to a 7.0 kilogram mass moves the mass horizontally a distance of 2.0
5 answers
asked by
Carlos
4,163 views
A 20-Ω resistor and a 30-Ω resistor are wired in parallel and connected to a 9.0-V battery.
a. How much current is drawn from
5 answers
asked by
Amy
1,391 views
Microwave ovens typically cook food using microwaves the a frequency of about 3.00 GHz (gigahertz 10 to the nine Hz). Show the
4 answers
asked by
bubba1
4,112 views
A uniform pencil AB weiging 40g can be balanced holizontally on a knife edge at 2cm at the end where a mass of 60g is hung from
7 answers
asked by
Miso
1,630 views
A gas occupies a volume of 458 mL at a
pressure of 1.01 kPa and a temperature of 295 K. When the pressure is changed, the volume
6 answers
asked by
Katelyn Latino
3,212 views
A block and tackle system consisting of 5 pulleys is used to raise a load of 400 N through a height of 10 m. If the work done
7 answers
asked by
fred
3,352 views
A snooker ball with a mass of 0.3kg moving at 2.5m/s collides with another ball of 0.2kg mass and moving in the same direction
5 answers
asked by
Sarah
1,530 views
What is the mass which causes a spring of k = 100 N/m to stretch by 10 cm?
5 answers
asked by
Robert
2,171 views
A ship fires its guns with a speed of 400 m/s at an angle of 35 with the horizontal.
a. Find the range and maximum altitude. b.
4 answers
asked by
Anonymous
2,735 views
The position of a particle moving along the x-axis at time t > 0 seconds is given by the function x(t) = e ^ t - 2t feet.
a) Find
4 answers
asked by
John
4,265 views
A car whose brakes are locked skids to a stop in 200 ft from an initial velocity of 50 mi/hr. Find the coefficient of sliding
5 answers
asked by
Maria Ellah
2,130 views
An organ pipe, open at both ends, resonates at its first resonant length with a frequency of 128 Hz. What is the length of the
5 answers
asked by
adskjasdnasd
1,182 views
To leave Nicholson, you exit via the door to the quad. The door is 40 inches wide and has a mass of 200 kg.
You push the door
4 answers
asked by
Kim
1,929 views
A 12.0-g bullet is fired into a 1 100-g block of wood which is suspended as a ballistic pendulum. The combined mass swings up to
5 answers
asked by
BIANCA
1,490 views
The diagram below shows two identical balls A and B on a horizontal surface. Ball B is at rest and ball A is moving with speed V
4 answers
asked by
pleasehelp
1,781 views
Assume that all of the mass of a bicycle wheel is concentrated at its rim. Such a wheel of mass 1.2 kg and radius 30 cm starts
5 answers
asked by
kelsey
3,287 views
a Negative Charge of -6.0 x 10^-6 C exerts an attractive force of 65 N on a second charge 0.050 m away. What is the magnitude on
4 answers
asked by
Tadeija
2,700 views
a bolwing ball of mass 2.00 kg strikes a stationary pin of mass 5.00 x 10^2 g. the collision lasts for .60s after which the pin
4 answers
asked by
feez
2,347 views
1) what is the efficiency of a frictionless inclined plane?
2) how would you increase the efficiency pf an inclined plane?
5 answers
asked by
Navroz
3,727 views
what is The total work done in lifting a typical high
school physics textbook a vertical distance of 0.10 meter
6 answers
asked by
Anonymous
3,763 views
a) The x-coordinate of an electron is measured with an uncertainty of 0.20 mm. What is the xcomponent
of the electron’s
4 answers
asked by
B. Ramez
4,019 views
An ox exerts a force of 7100N to the horizontal direction without slipping. If the ox has a weight of 8000N, what is the minimum
4 answers
asked by
Steve
913 views
Allyson and Adrian have decided to connect their ankles with a bungee cord; one end is tied to each person's ankle. The cord is
3 answers
asked by
Nathan
494 views
A ball of mass 100g approaching a tennis player with a velocity of 10m/s, is hit back in the opposite direction with a velocity
4 answers
asked by
Mac FERGUSON
383 views
You have 23.0g of water initially at -46°C. How much energy in joules is required to
heat the ice to 0°C? c ice = 2.1 J/g°C. I
4 answers
asked by
Harrison
828 views
Twins who are 19.0 years of age leave the earth and travel to a distant planet 12.0 light-years away. Assume that the planet and
4 answers
asked by
Jim
1,914 views
A 1.0 kg object is given a push along a horizontal surface. If the velocity of the object when it is released is 0.50 m/s west,
5 answers
asked by
Anonymous
1,486 views
A string with a linear density of 0.035 kg/m and a mass of 0.014 kg is clamped at both ends. Under what tension in the string
4 answers
asked by
Tina
2,580 views
A figure shows a uniform metre rule which is pivoted at the 20cm mark and balanced horizontally by an object of weight 3.15N
4 answers
asked by
Blessings
1,877 views
A .25 kg pool ball is moving at 5.0m/s E towards a second identical ball at rest. After the collision, the first ball is seen
4 answers
asked by
Gar
3,130 views
A golf ball is given an initial speed of 20 m/s and returns to ground level. Which launch angle above level ground results in
4 answers
asked by
Julie
3,629 views
A car of mass 760kg travels with a velocity of 14ms-1
If the brakes are applied,the car travels a distance of 55m before coming
4 answers
asked by
Alos
741 views
A spiral spring of natural length of 20.0cm has a scale pan hanging freely on its lower end. When an object of mass 40g is
4 answers
asked by
Grace
2,206 views
A girl whose weight is 30 N runs up a flight of stairs 5 m in 6 s. What is her average power
5 answers
asked by
Favour
1,265 views
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