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Physics 11
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An FM radio station transmits radio signals that have a wavelength of 3.2m. Where would you have to adjust your tuner in order
6 answers
asked by
Kayla
4,669 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
3,058 views
Two people start running from rest. The first person has a mass of 59 kg and is wearing
dress shoes with a coefficient of static
4 answers
asked by
Anonymous
1,556 views
A mass of 10 kg, initially at rest on a horizontal frictionless surface, is acted upon by a horizontal force of 25 N. The speed
4 answers
asked by
frank
2,657 views
A single wave pulse is sent along a thick rope that's tied to a thin rope, which in turn is attached to a wall. Reflection of
4 answers
asked by
Kayla
2,696 views
SPH3U1
Two blocks of mass 500.0 g and 200.0 g are suspended vertically as shown in the diagram. The top string is lifted
5 answers
asked by
Andy
1,869 views
As water waves from the ocean approach a shallow beach, their wavelengths become shorter. Explain why.
v=fwavelength, frequency
4 answers
asked by
Kayla
1,924 views
A 90kg basketball player carries about 720J of kinetic energy when running down the court. If the coefficient of kinetic
4 answers
asked by
Kayla
1,053 views
In the absence of air resistance, a ball of mass m is tossed upward to reach a height of 20m. Given that Fg=mg, what is the net
4 answers
asked by
Kayla
3,799 views
2 men are fishing from small boats located 36m apart. Waves pass through the water, & each man's boat bobs up & down 15 times in
5 answers
asked by
Kayla
3,065 views
A 140 kg stationary crate is pulled by a force of 390 N along a horizontal surface.
a) The coefficient of static friction between
3 answers
asked by
Rose
1,929 views
A 1.2x10^4-kg truck is travelling south at 22m/s. What net force is required to bring the truck to a stop at 330 m? What is the
3 answers
asked by
Elita
934 views
The brakes on a car permit it to decelerate at the rate of -8.0m/s^2. How much distance is required to stop this car when it is
3 answers
asked by
David
1,006 views
Mark Ji shoots a 40gram arrow straight up in the air at 30m/s during a home archery training session
a. assuming no air
1 answer
asked by
Andy
448 views
In physics we did a lab experiment that involved finding the Heat capacity. the teacher told us that we wont get an exact
2 answers
asked by
Andrew
963 views
I need help on this question
79 g of water at 95 degree Celsius were added to tap water at 22 degree Celsius, and the Temperature
4 answers
asked by
Andrew
544 views
Can someone give me an accurate definition on "Principle of Superposition"?
Extra info: Im studying Physics 11, Sound Unit
1 answer
asked by
Andy
449 views
A string that is 90cm long with a diameter of 0.75 mm and a tension of 60 N has a frequency of 100 Hz. What new frequency is
1 answer
asked by
Andy
447 views
If the length of a guitar string is 90 cm, and the speed of sound is 343 m/s that day, what is the 3 rd fundamental frequency of
1 answer
asked by
HelpNEeded
416 views
If the length of a guitar string is 90 cm, and the speed of sound is 343 m/s that day, what is the 3 rd fundamental frequency of
1 answer
asked by
HelpNEeded
424 views
A river has a current of 5 m/s. A boat tries to head directly across at 4 m/s. When the boat reaches the other side it is 30m
1 answer
asked by
Denny
437 views
How much would a 80kg astronaut weigh on Earth? How much would they weigh 500 km above the surface of the Earth?
Thank you!
4 answers
asked by
Cole
1,250 views
A stone at rest is dropped from a 20m tall building. After falling for 10m, it reaches the top of a 2m tall window. How long
1 answer
asked by
Stonehenge
435 views
A girl stands 2.5 m infront of a plane mirror. If she sees someone else 2.0 m behind her, how far is she from the image of that
3 answers
asked by
Abe
611 views
A man jumps from a great height and falls freely to the Earth. Another man jumps from the same height 1 s later. How much are
4 answers
asked by
Samuel
892 views
Displacement is given by x=2+3t+4t². Find the value of instantaneous acceleration.
2 answers
asked by
Samuel
839 views
If two objects weighing 5 kg and 7 kg are dropped from a height of 64 m and 36 m, respectively. What will be the ratio of times
3 answers
asked by
Samuel
950 views
Show that the minimum force required to pull a wheel if Radius R and mass M over a step of height h, given R> h when the force
2 answers
asked by
Raylene
600 views
What is the force of gravity on the moon?
2 answers
asked by
Raylene
716 views
A 1.00 x 10^4 W electric motor is used to lift a 955 kg object vertically 25.0 m at a constant velocity in 45.0 s. What is the
2 answers
asked by
Allie
651 views
A skydiver [m=95kg] jumps out of an airplane and opens her parachute 45 seconds later. After another 15 seconds, the skydiver
2 answers
asked by
Rachel
821 views
An airplane flies at 500km/hr, there is a wind kf 50.0km/h(N).if the pilot wants to fly due east, calculate the direction that
3 answers
asked by
Jaena MacCharles
576 views
A businesswoman is applying a force of 12.0 N [upwards] to carry her briefcase for a horizontal distance of 200.0 m. How much
3 answers
asked by
Rayan
844 views
A rifle bullet of mass 60g leaves the muzzle of a rifle with a V=5.8*10^2m/s. If the rifle has a mass of 3.1 kg, with what V
2 answers
asked by
Kayla
565 views
A girl pushes her little brother on his sled w/ a force of 35N for 840s. How much work does she do if the force of friction I'd
1 answer
asked by
Kayla
727 views
A 62kg cyclist changes the speed of a 12kg bicycle from 8.2m/s to 12.7m/s. Determine the work done.
I used change in energy =
3 answers
asked by
Kayla
842 views
Can someone explain what work total is? In my lessons it said Work total is the sum of all work & showed an example of different
4 answers
asked by
Kayla
568 views
A 62kg cyclist changes the speed of a 12kg bicycle from 8.2m/s to 12.7m/s. Determine the work done.
I've already answered &
5 answers
asked by
Kayla
1,719 views
If 2 vehicles are moving toward each other from opposite directions & are the same mass & velocity then momentum=0 correct?
3 answers
asked by
Kayla
362 views
A 1200Kg car travels at a constant speed of 26m/s for 5s up a 130m long hill. The total height of the hill is 27m & the friction
2 answers
asked by
Kayla
581 views
A student throws a .1kg ball at a wall. The ball hits the wall perpendicularly with a speed of 5m/s & then bounces back w/ a new
3 answers
asked by
Kayla
498 views
You are creating waves in a rope by shaking your hand back & forth. W/out changing the distance your hand moves, you begin to
4 answers
asked by
Kayla
2,383 views
Waves traveling along a string have a wavelength of 2.4m. When the waves reach the fixed end of the string, they are reflected
4 answers
asked by
Kayla
1,574 views
The speed of water waves is 30cm/s in deep water & 15cm/s in shallow water. If the wavelength in deep water is 1.0cm, what is
3 answers
asked by
Kayla
1,183 views
A 4.00 kg block is accelerated along a level surface at 3.00 m/s^2. The applied force is 20.0 N.
What is the coefficient of
4 answers
asked by
Ryan
695 views
A 15 kg block i
1 answer
asked by
Ryan
352 views
A 15 kg block is sitting on a level surface. The coefficient of friction between the block and the surface is 0.32. A horizontal
1 answer
asked by
Ryan
490 views
The diagram shows a collision between a 4.0 kg toy car and a stationary 8.0 kg toy truck. After the collision, the car bounces
2 answers
asked by
Ryan
719 views
I'm trying to draw a ray diagram (the image & mirror are already printed I just need to draw the rays) for a plane mirror. I
4 answers
asked by
Kayla
724 views
A student performs an experiment. On her desk, she directs a light ray at the flat surface of an unknown transparent material at
1 answer
asked by
Kayla
856 views
Confused about the formula
(1/-f)= (1/do)+(1/-di) For locating an image for a convex mirror. A rose is placed 15cm in front of a
3 answers
asked by
Kayla
544 views
A rose is placed 15.0 cm in front of a convex mirror of focal length 10.0 cm.
I assume f= -10cm bc it's convex correct? giving me
3 answers
asked by
Kayla
558 views
Devon speeds past Tamara in his space shuttle. In Tamara's frame of reference, the shuttle moves with a speed of 0.88c. Devon's
4 answers
asked by
Kayla
660 views