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5 Electrical grids are placed 1m apart and connected to batteries so that the grids are at 0V, +100V, -10V, +45V, and +75V. A
1 answer
asked by
anonymous
222 views
PLEASE HELP!
5 Electrical grids are placed 1m apart and connected to batteries so that the grids are at 0V, +100V, -10V, +45V,
1 answer
asked by
anonymous
296 views
A large truck traveling at +15 m/s collides head-on with a small car traveling at -15 m/s, which of the following statements is
1 answer
asked by
c
248 views
A 0.45 kg football traveling at a speed of 22 m/s is caught by a stationary receiver. If the football comes to a rest in the
4 answers
asked by
c
1,254 views
A 1000 kg car moving a 10 m/s collides with a stationary 2000 kg truck. The two vehicles interlock as a result of the collision.
1 answer
asked by
c
433 views
A 1500 kg truck is acted upon by a force that decreases its speed from 25 m/s to 15 m/s in 8 s. What is the magnitude of the
1 answer
asked by
c
218 views
A 10 kg ball moving at 5 m/s collides elastically with a stationary 2 kg ball. After the collision , the 10 kg ball is moving at
2 answers
asked by
c
578 views
an object with a eight of 19.6N moves with a constant velocity of 20.0m/s. A net Force of 6.00 N is applied to the object in the
1 answer
asked by
luñu
297 views
The electric potential in a certain region is given by the equation V(x,y,z) = 3αx^2y^3 - 2γx^2y^4z^2 where the potential is
1 answer
asked by
anonymous
606 views
A horse tows a barge in a canal by means of a rope that makes an angle of 15 degrees with the direction of motion of the barge.
1 answer
asked by
y
423 views
The cable of a large crane applies a force of 2.2x10^4 N to a demolition ball as it lifts the ball vertically upward a distance
1 answer
asked by
y
399 views
A 10.0 kg crate is pulled up a rough incline with an initial speed of 1.5 m/s. The pulling force is 100.0N parallel to the
1 answer
asked by
y
392 views
You find out that it takes 2 seconds for the swing
to complete one cycle. What is the swing’s period and frequency
2 answers
asked by
Mike
969 views
he swinging the toy with alinear velocity of 2m/s will the toy move in acircle?
1 answer
asked by
Anonymous
156 views
a.
A frictionless roller coaster is given an initial velocity of v0 at height h = 16 m . The radius of curvature of the track at
3 answers
asked by
Anonymous
633 views
The earth is, on average , 150 million km from the sun calculate it aaverage in orbit
2 answers
asked by
mahi
507 views
explain why soft iron keepers are suitable for storing magnets
1 answer
asked by
scoviahnne
340 views
charge
1 answer
asked by
tesfhun
193 views
Aclimbr of mass 80kg on steep rock face,The force X that the rock exerts on the climber is at an angle of 50degree to the
5 answers
asked by
Yordanos Adem
719 views
formula for finding maximum height
1 answer
asked by
mesoma
211 views
A race car is moving at a constant speed of 35 meter per second. as the race car passes by it and was accelerating at a constant
4 answers
asked by
Elisabeth
770 views
a simple pendulum is made from a bob of mass 0.040 kg suspended on a light on a light string of length 1.4m. keeping the string
4 answers
asked by
oromo
680 views
A satellite moves at a constant speed in a circular orbit about the center of the earth at an altitude half the radius of the
3 answers
asked by
dawit
659 views
A boy walked 100km due east then walks 120km due north and 110km at 45°northeast.What's his resultant displacement?
1 answer
asked by
Vicky kambi
265 views
Jackie who is 20 kg slides down a playground slide that is 10 m high. If she comes to the bottom with a speed of 5.0 m/s, how
1 answer
asked by
amanda
246 views
A simple pendulum is made from a Bob of mass 0.04kg suspended on a light spring of length 1.4m. keeping the string taut pendulum
3 answers
asked by
Tanan Kebede
575 views
if a tram suddenly starts, and a stationary person is 'thrown backwards', is his
a) inertia is making him stay where he is while
1 answer
asked by
ty track
195 views
a falling stone a 10m/s*2
1 answer
asked by
yyuuu
120 views
A balloon rubbed against a pair of jeans gains a charge of -6x10^-6 C. If the balloon is moved to a distance of 0.25 m away from
3 answers
asked by
u
593 views
A metal sphere with a charge of +25 x 10-9 C is placed 2 m away from another metal sphere which carries a charge of +10 x 10^-9
1 answer
asked by
u
366 views
An electron (q=-1.6x10^-19 C) is placed in an electric field created by a large positive charge. The strength of the field is
1 answer
asked by
h
276 views
An electric field of 2.0x10^4N/C is directed along the positive x-axis.
a. What is the electric force on an electron in the
1 answer
asked by
h
1,168 views
A car travels 3 km due north, then 5 km east. represent these displacement graphically and determinethe resultant displacement.
3 answers
asked by
Abdi
444 views
a girl whose mass is 40kg walk up a fight of steps each 150mm height in second find the average power developed (g=10m/5'2
5 answers
asked by
Wilson
558 views
A spring stretches by 60mm when supporting a load of 20newtons .By how much would it stretch when supporting a load of 5kg
1 answer
asked by
Elizabeth
369 views
There's a point between Earth and the Moon where net gravitational field= 0, Mass of Earth =6.0 ×10^24 kg, mass of the Moon
1 answer
asked by
jue viole grace
231 views
Aluminum has a Latent Heat of Fusion of 94.6 calories/gram and a Specific Heat of 0.214 cal/g C. The melting point of Aluminum
1 answer
asked by
Susan
407 views
The length of a simple pendulums which is about 0.5m can be measured to within 1mm what accuracy is required in measurement of
1 answer
asked by
Vai
193 views
what type of lever is the crowbar?
1 answer
asked by
Jerome
179 views
A conducting bar of length L = 0.40 m rotates in a counterclockwise direction with a constant angular speed of +2.0 rad/s about
3 answers
asked by
Emerix
458 views
What would be the electric field (magnitude and direction) of 1.50 cm to the right of a charge of -6.5 × 10-6 C?
plz answer as
2 answers
asked by
Anonymous
511 views
1-The position of a particle moving along the x axis is given by x=t^2-〖2t〗^3-6, where x is in meters and t in seconds. What
3 answers
asked by
mustafa
970 views
A diver is 40 meters deep under the water where the temperature is 4◦C. From the diver’s
gas mask an air bubble is released
1 answer
asked by
tshegofatso
363 views
Blaise is driving a car that is traveling 6.03 m/s and accelerates uniformly at 2.5 m/s² to reach a speed of 12.9 m/s. How long
1 answer
asked by
jay
196 views
My dog ObiWan Kenobi pushes a ball rolling toward it at 1.6 m/s with its paw, displacing the ball 9.6 m in the opposite
1 answer
asked by
ja
288 views
Mark Stone glides off the ice onto the bench at a velocity of 3.38 m/s. He is slowed at a constant rate of 4.7 m/s². How fast
1 answer
asked by
per
255 views
The position versus time for a certain object
moving along the x-axis is shown. The object’s initial position is −3 m. Find
2 answers
asked by
boss
1,311 views
A spherical human has a surface area of 2 m^2 and an emissivity of 0.98. Assuming that the humans surface temp is 37 degrees C,
1 answer
asked by
alex
228 views
The ideal gas law is PV=nRT, where P is the pressure, V is the volume, n is the number of
moles, R is the universal gas constant,
2 answers
asked by
dodotheexplorer
759 views
An object is pulled in different directions by four forces: 25 N, 40° south of east; 32 N, 30° north of east; 28 N, southwest,
1 answer
asked by
dodotheexplorer
419 views
The two legs of a right triangle are 6.5 units and 9.0 units. Find the hypotenuse and the two acute angles.
1 answer
asked by
dodotheexplorer
258 views
a mother (50kg) and her child (25) kg are facing each other in the middle of a friction less pond of ice. The mother pushes
4 answers
asked by
Anonymous
616 views
If the vertical component of velocity for a projectile is 7.3 meters/second, find its hang time.
1 answer
asked by
gene
329 views
The driver of a car sets the cruise control and ties the steering wheel so that the car travels at a uniform speed of 13 m/s in
1 answer
asked by
Yami
407 views
A car experiences a centripetal acceleration of 4.8 m/s2 as it rounds a corner with a speed of 11 m/s
What is the radius of the
1 answer
asked by
Bruno
294 views
A cars is moving at 12.0m/s when the traffic light turns orange. How far will the car move between the time the lights turn
2 answers
asked by
dodotheexplorer
204 views
A drag racer starting from rest accelerates in a straight line at a constant rate of 5.5 m/s2 for 6.0 s. After this, a parachute
2 answers
asked by
dodotheexplorer
616 views
The speed limit in a school zone is 40Km/h. A driver traveling at this speed sees a child run into the road 13m ahead of his
1 answer
asked by
Abraham
294 views
The speed limit in a school zone is 40Km/
h. A driver traveling at this speed sees a child run into the road 13m ahead of his
1 answer
asked by
Clinton physicist
330 views
initially a 10 kg block is sliding along a level floor at a speed of 5 m/s. the coefficient between the block and floor is
3 answers
asked by
Anonymous
324 views
A transformer with 960 turns in its primary coil has to decrease the voltage from 3520 V to 220 V for home use. How many turns
1 answer
asked by
Amy
278 views
a string exerts a tension force of 55 N on a 10 kg block as it moves a distance of 5 up a frictionless incline, included at 37
1 answer
asked by
Anonymous
193 views
The human eye is sensitive to yellow-green light having a frequency of about 5.5 1014 Hz (a wavelength of about 550 nm). What is
2 answers
asked by
Toni
549 views
Light that has a frequency of about 6.40 1014 Hz (a wavelength of about 475 nm) appears blue to our eyes. What is the energy in
1 answer
asked by
Bradly
287 views
Photons of a certain ultraviolet light have an energy of 6.02 10-19 J.
(a) What is the frequency of the UV light in Hz? (b) Use
1 answer
asked by
Jim
308 views
4.0 kg object moving with unknown velocity collides with a 6.1 kg stationaty object. after the collision, the 4.0kg object
2 answers
asked by
Bob
186 views
Please I need help?
Please and thank you. A 3.1g Ball makes a perfect inelastic collision with a second ball which is at rest. If
1 answer
asked by
Bob
179 views
A 3.1g Ball makes a perfect inelastic collision with a second ball which is at rest. If the combined mass moves at a velocity of
1 answer
asked by
Bob
192 views
Truck moves with a velocity of 43 m\s and collides with the stationary car with exactly 1 / 5 of its mass. If the two vehicles
1 answer
asked by
Bob
167 views
A 6.8 kg Cannonball is flying at 15.8 m/s [E] when it explodes into two fragments. One 1.4kg fragments (A) Goes off at 8.1 m/s
1 answer
asked by
Bob
244 views
A 25 kg object travels at 52 m/s West collides with a 39 kg object at rest. If the object sticks together on contact, the
1 answer
asked by
Bob
166 views
A car moving East out of velocity of 25.8 m/s collides with a stationary truck with exactly twice the mass. If the two vehicles
1 answer
asked by
Bob
161 views
A 25 kg object travels at 52 m/s West collides with a 39 kg object at rest. If the object sticks together on contact, the
1 answer
asked by
sam
157 views
a ball is thrown from the ground its velocity after 2 sec
1 answer
asked by
a
156 views
Truck moves with a velocity of 43 m\s and collides with the stationary car with exactly 1 / 5 of its mass. If the two vehicles
1 answer
asked by
coolname
164 views
how do you slove for time
1 answer
asked by
Steven Mora
124 views
Once a 24 kg crate is in motion on a horizontal floor, a horizontal force of 57 N keeps the crate moving with a constant
1 answer
asked by
Leo
312 views
Three sleds are tied together and pulled with a force of 150 N [E]. The mass of sled 1 is 13.0 kg, the mass of sled 2 is 10.0
1 answer
asked by
bhvhtr
377 views
The weight (M) in the following diagram has a mass of 0.750 kg and the cart (M1) has a mass of 0.52 kg. There is a friction
1 answer
asked by
bhvhtr
331 views
A car moving at 30 km/h collides with the rear of a stationary vehicle. Using Newton’s first law, explain what will happen to
1 answer
asked by
bhvhtr
294 views
you are riding the elevator at the ”CN Tower”.
What forces are acting on you, as you are riding the elevator? At which
1 answer
asked by
bhvhtr
241 views
if Moon revolves the earth in a circular orbit of radius 3*10^8 and makes a complete revolution in 655.2 hours. calculate the
1 answer
asked by
ola
290 views
A cyclist and his bicycle have a combined mass of 55 kg. The total area of the tyres in contact with the road is 2.2 × 10^-3
3 answers
asked by
helpp
327 views
By how many percent does a 40.0 degree inclined plane reduce the normal force of a 380 N object?
3 answers
asked by
Anonymous
278 views
A 25-kg solid metal on a 60.0 degree frictionless inclined plane is given a 250-N push upward (parallel to the inclined plane)
1 answer
asked by
Anonymous
250 views
A person who has a mass of 85-kg stops on a weighing scale in-on elevator that is moving down. If the person loses 15% of his
1 answer
asked by
Anonymous
327 views
A 750- N person steps on the weighing scale inside a moving elevator as it slows down to the ground floor. The person notices
3 answers
asked by
Anonymous
414 views
How much force (P) is needed to just keep a 380 N-box rested on a 40.0-degree inclined place?
1 answer
asked by
Anonymous
247 views
By how many percent does a 40.0 degree inclined plane reduce the normal force of a 380 N object?
1 answer
asked by
Anonymous
288 views
Suppose that a force F=250 N applied at 20° below the horizontal is just enough to start the motion of the 55 kg crate in
1 answer
asked by
dodotheexplorer
248 views
Suppose that a force F=250 N applied at 20° below the horizontal is just enough to start the motion of the 55 kg crate in
1 answer
asked by
dodotheexplorer
154 views
A spring streted 40mm by a force of 15N . when is the work done of the force
1 answer
asked by
akinwale
183 views
1. A stopwatch starts while race car travels at 7 m/s from the pit area and accelerates at a uniform rate to a speed of 30 m/s
1 answer
asked by
sarah
329 views
A 16.0 kg canoe moving to the left at -12.5 m/s makes an elastic head on collision with a 14.0 raft moving
to the right at 16.0
2 answers
asked by
Braxson
859 views
A ladder of mass M and length 4 m rests against a frictionless wall at an angle of 50 degrees to the horizontal. The coefficient
1 answer
asked by
ryan
309 views
A river flows due East at 1.14 m/s. A boat
crosses the river from the South shore to the North shore by maintaining a constant
1 answer
asked by
joe
259 views
A Truck moving West at a velocity of 43 m/s collides with a stationary car with exactly 1/5 of its mass. is there two vehicles
1 answer
asked by
sick boss
267 views
A proiettile is fired with an initial velocity of 100m/a at an Angle of 30degree on the Horizonte calculate the range
4 answers
asked by
sylvia
294 views
AQ5.1.1 PV Modules
0.0/1.0 point (graded) Consider a crystalline PV module with the following output parameters mentioned at STC
1 answer
asked by
AQ5.1.1 PV Modules
237 views
Two forces 4n and 5n act on a body in direction due north and due east respectively calculate their equilibria ( physics)
6 answers
asked by
Anonymous
530 views
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