12,727 Answered Questions for the topic physics

Physics

06/06/23

Please Help with this question
A car of mass m follows a truck of mass 2m around a circular turn. Both vehicles move at speed v.I Just need help with question B HINT(a)What is the ratio of the truck's net centripetal force to... more
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Physics

06/06/23

Please help with this question

A 42.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of 22.0 m.I know all the answers except for "D" the second question (DIRECTION)(a) What is the... more
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Physics

06/06/23

Use the figure below to answer and show work.
i. find the x- and y-component of A and Bii. find the A + B (magnitude and direction)iii. Find A - B (magnitude and direction)iv. Find A (dot) B and the angle between the two vectorsv. Find the... more
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Physics

06/06/23

A cat walks in a straight line, which we shall call the x-axis, with the positive direction to the right. You take measurements of the cat’s velocity as a function of time and graph it below
i. What is the cat's acceleration at t = 2s and t = 5sii. How far did the cat move in the first 6s and in which directioniii. Sketch the acceleration vs. time graph of the cat's motion
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Physics

06/05/23

Why are the equations of motion valid only when acceleration is constant? Also, why are- dv/dt , ds/dt etc valid in all cases? Don't we consider acceleration constant while deriving them?
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Physics Math Algebra 1

06/05/23

physics homework question
An object moves along the x-axis according to the equation x = 2.95t2 − 2.00t + 3.00, where x is in meters and t is in seconds.a- Determine the instantaneous speed at t = 4.20 s.b-Determine the... more
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Physics Calculus

06/04/23

Find Work Done in Moving Particle
**Show workWhen a particle is located a distance x meters from the origin, a force of cos⁡(pi(x/5)) newtons acts on it.Find the work done in moving the particle from x=2 to x=2.5. ?Find the work... more
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Physics Science

06/04/23

physics homework question
A small mailbag is released from a helicopter that is descending steadily at 1.10 m/s.(a) After 5.00 s, what is the speed of the mailbag?v = ___m/s(b) How far is it below the helicopter?d=... more
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Physics Science

06/04/23

physics homework question
A ball is thrown directly downward with an initial speed of 7.95 m/s, from a height of 30.2 m. After what time interval does it strike the ground?
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Physics

06/03/23

A thin cylindrical shell of radius R1 = 5.5 cm
A thin cylindrical shell of radius R1 = 5.5 cm is surrounded by a second cylindrical shell of radius R2 = 9.0 cm, as in (Figure 1). Both cylinders are 15 mm long and the inner one carries a total... more
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Physics

06/03/23

The archerfish hunt
What is the vertical component of the water's initial velocity? How long does the beetle have to react?How high is the beetle above the fish?What is the horizontal distance between the fish and... more
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Physics

06/02/23

A solid metal sphere of radius 2.50 m carries a total charge of -2.20 μC...
A solid metal sphere of radius 2.50 m carries a total charge of -2.20 μC. (a)What is the magnitude of the electric field at a distance from the sphere's center of 2.60 mm ? (b)What is the magnitude... more
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Physics

06/02/23

How much work done if only half of the rope is pulled to the top of the building?
4. A soft long rope with a weight of 3lb/ft hangs over the edge of a building 200ft high. How much work done if only half of the rope is pulled to the top of the building?
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Physics

06/02/23

How much work is required to pull the entire rope to the top of the building?
3. A soft long rope with a weight of 3lb/ft hangs over the edge of a building 200ft high. How much work is required to pull the entire rope to the top of the building?
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Physics

06/02/23

How much work is done if the density of ice is 917kg/ m^3?
2. A 2 m^3 of ice is pulled up by a chain to 5m high with the weight of the chain to be 1kg/m. How much work is done if the density of ice is 917kg/ m^3?
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Physics

06/02/23

As the crate slides 3.6m, how much work is done on the crate by: a) the worker b) the force of gravity c) the normal force due to the incline plane?

1. To push a 25kg up a 27* inclined plane, a worker exerts a force of 120N parallel to the inclined plane. As the crate slides 3.6m, how much work is done on the crate by: a) the worker b) the... more
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Physics

06/01/23

q1.What is the distance of the fourth leg? q2What is the value of Θ4? q3.What is the value of Dy?
A sailboat race course consists of four legs defined by the displacement vectors A, B, C and D shown above.The values of the angles are Θ1 = 350, Θ2 = 340, and Θ3 = 200.The magnitudes of the first... more
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Physics Algebra 1

06/01/23

physics Homework question
Question: The edges of a shoebox are measured to be 12.3 cm, 18.8 cm, and 29 cm. V= 12.3 x18.8x 29= 6705.96 cm***Determine the volume of the box retaining the proper number of significant figures... more
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06/01/23

Physics homework question
Question: The edges of a shoebox are measured to be 12.3 cm, 18.8 cm, and 29 cm. ***Determine the volume of the box retaining the proper number of significant figures in your answer.)
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06/01/23

physics homework
A small turtle moves at a speed of 651 furlongs per fortnight. Find the speed of the turtle in centimeters per second. Note that 1 furlong = 220 yards and 1 fortnight = 14 days.
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Physics

06/01/23

Loop de loop question
I have an assignment in physics and I can't understand the difference between the 2 questions. That's the questionA skier with mass m=70 kg stands on a ramp of height h. At the foot of the ramp,... more
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Physics Algebra 1

06/01/23

Physics homework question
The speed of light is now defined to be c = 2.99792458 ✕ 108 m/s(a) Express the speed of light to three significant figures. (Enter a number with the correct number of significant figures)(b)... more
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Physics

05/31/23

Physics Cable Magnitude
A 520-N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal, 6.00-m-long, uniform, 110-N rod as indicated in the figure below. The left end of the rod is supported... more
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Physics

05/30/23

Physics Lead Mass
A 24-g ice cube floats in 220 g of water in a 100-g copper cup; all are at a temperature of 0°C. A piece of lead at 86°C is dropped into the cup, and the final equilibrium temperature is 12°C. What... more
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Physics

05/30/23

Physics Fat Metabolism
When you jog, most of the food energy you burn above your basal metabolic rate (BMR) ends up as internal energy that would raise your body temperature if it were not eliminated. The evaporation of... more
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