12,727 Answered Questions for the topic physics

Physics

05/29/22

momentum and impulse
A solid block of mass m2 = 3.3 kg, at rest on a horizontal frictionless surface, is connected to a relaxed spring. The other end of the spring is fixed, and the spring constant is k = 60 N/m.... more
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05/28/22

Calculate the cell potential of the electrolytic cell
Calculate the cell potential of the electrolytic cell, identify the anode and the cathode and write thebalanced equation for the overall cell reaction that occurs according to the reaction shown... more
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05/27/22

Determine if the reaction is spontaneous or not:
a. 3 Li + Al ⟶ 3 Li + Al3+ E ̊ = - 1.39 V
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Physics

05/26/22

physics question
The initial velocity of a military jet is 210 m/s eastward. The pilot ignites the afterburners, and the jet accelerates eastward at a constant rate for 1.70 s. The final velocity of the jet... more
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Physics

05/25/22

A worker at the top of a 380-m-tall television transmitting tower accidentally drops a heavy tool. If air resistance is negligible, how fast (in m/s) is the tool going just before it hits the ground?
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Physics

05/25/22

Moment of inertia

A wagon wheel is a thin metal ringof mass 57.1 kg and radius 0.530m. What is its moment of inertia?[?] kg-m²can someone please answer this thourghly ?
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Physics

05/25/22

(a) Find the tension in the string connecting masses M1 and M2. (b) Find the tension in the string connecting masses M2 and M3.
A hanging mass, M1 = 5 kg, is attached by a light string that runs over a frictionless pulley to the front of a mass M2 = 3.5 kg that is initially at rest on the table. A third mass M3 = 4 kg,... more
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Physics

05/25/22

potential energy
A particle of mass 1.1 kg moves under the influence of a potentialU(x) = a/x + bx (a=3 and b=2.5). The particle's motion is restricted to the region x>0.the force acting on the particle is a/x^2... more
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Physics

05/25/22

A football coach sits on a sled while two of his players build their strength by dragging the sled

A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes. The friction force on the sled is 1.2  and the angle between the two... more
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Physics

05/24/22

Moment of inertia

A cylinder with a radius of 1.33 mhas a moment of inertia of272 kg-m². What is its mass?can someone Plzz thourghly answer this ?!
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Physics

05/24/22

Moment of inertia
A cylinder with a radius of 1.33 mhas a moment of inertia of272 kg-m2. What is its mass?Kg* can someone please help me with this ?
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Physics

05/24/22

Moment of inertia
A 41.2 kg kid stands 1.50 m fromthe center of a merry-go-round.What is his moment of inertia?can someone please answer this thourghly ?
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Physics

05/24/22

potential energy
A particle of mass 1.1 kg moves under the influence of a potentialU(x) = a/x + bx (a=3 and b=2.5). The particle's motion is restricted to the region x>0.the force acting on the particle is a/x^2... more
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Physics

05/24/22

Moment of inertia

A 0.225 m radius solid sphere has amoment of inertia of 0.123 kg-m².What is its mass?(Kg) can someone please answer this ?
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Physics

05/24/22

Moment of inertia
A 0.225 m radius solid sphere has amoment of inertia of 0.123 kg.m².What is its mass?[?] kgcan someone plz answer this thourghly ?
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Physics

05/24/22

A constant force is applied to an object, causing the object to accelerate at
A constant force is applied to an object, causing the object to accelerate at 14 m/s2 .What will the acceleration be if the force is doubled and the object's mass is halved?
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Physics

05/23/22

A man pulling an empty wagon causes it to accelerate at 1.4 m/s^2.
A man pulling an empty wagon causes it to accelerate at 1.4 m/s^2.What will the acceleration be if he pulls with the same force when the wagon contains a child whose mass is three times that of the... more
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Physics

05/23/22

A constant force is applied to an object, causing the object to accelerate at

A constant force is applied to an object, causing the object to accelerate at 14 m/s2 .What will the acceleration be if the force is doubled?What will the acceleration be if the object's mass is... more
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Physics

05/23/22

a constant force applied to object...
A constant force applied to object A causes it to accelerate at 5 m/s^2 .The same force applied to object B causes an acceleration of 3 m/s^2 . Applied to object C, it causes an acceleration of 9... more
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Physics Magnets

05/22/22

I need help with this question
When a magnetic south pole with a strength of 25 units is placed 5.0 cm from another magnetic pole, it experiences a repulsion of 450 dynes. What is the strength of the second pole?If you can, you... more
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05/21/22

Asteroid split lab

Background: The two tables below contain both the assumptions and parameters needed to evaluate if the plucky heroes in Armageddon could save Earth. In order to miss, Earth two conditions must... more
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05/21/22

Question about harmonic oscillation of a pendulum clock
A pendulum clock - is a clock that uses a pendulum, a swinging weight, as its timekeeping element.Pendulum's amplitude of oscillation decreases with the stretching of the spring. How does the... more
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05/19/22

Quadrilateral Circle Problems
A sector of a circle is radius 7 cm has an area of 7π / 2 cm^2. Find the central angle of the sector. Consider a circle of area 81 π cm^2. a.) Find the radius of the circle ... more
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Physics Science

05/19/22

A 9.5-L sample of helium gas stored at 25.0 C and 3.0 atm pressure is transferred to a 3.0 L tank and maintaned at s pressure of 5.0 atm
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Physics

05/18/22

Equilibrium/physics

A 10.5 kg board 6.00 m long issupported by two sawhorses, oneat each end. A 4.45 kg saw sits onThe board 1.80 m from the left end.Find the upward force that theLEFT sawhorse exerts on theBoard.Can... more
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