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defon
2 years ago
12

If a neighbor pushes a lawnmower six times as far as you do but exerts only one third the force, which one of you does more work

and by how much?
Physics
2 answers:
Anestetic [448]2 years ago
8 0
Answer:

W= 3F.d

Explanation:


You

W= F.d

W= F.d

Your neighbor

W= (1/2 F) (6d)

W= 6/2 F.d

W= 3 F.d
Nat2105 [25]2 years ago
7 0

Answer:

Your neighbor does twice as much work.

Explanation:

Distance(measurement) * exertion(force of pushing mower) = work

6 * 1/3 = 2

Your neighbor does twice as much work as you do.

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(0 10 40 20 30 50 70 80) (90 100 110 120 130 140). Which end of the scale (left or right) has the loudest sounds?​
gregori [183]
I think 140 would be the loudest.
8 0
2 years ago
A particle with charge q and momentum p, initially moving along the x-axis, enters a region where a uniform magnetic field* B=(B
VMariaS [17]

Answer:

Magnitude of momentum = q × B0 × [d^2 + 2L^2] / 2d.

Explanation:

So, from the question, we are given that the charge = q, the momentum = p.

=> From the question We are also given that, "initially, there is movement along the x-axis which then enters a region where a uniform magnetic field* B = (B0)(k) which then extends over a width x = L, the distance = d in the +y direction as it traverses the field."

Momentum,P = mass × Velocity, v -----(1).

We know that for a free particle the magnetic field is equal to the centrepetal force. Thus, we have the magnetic field = mass,.m × (velocity,v)^2 / radius, r.

Radius,r = P × v / B0 -----------------------------(2).

Centrepetal force = q × B0 × v. ----------(3).

(If X = L and distance = d)Therefore, the radius after solving binomially, radius = (d^2 + 2 L^2) / 2d.

Equating Equation (2) and (3) gives;

P = B0 × q × r.

Hence, the Magnitude of momentum = q × B0 × [d^2 + 2L^2] / 2d.

4 0
3 years ago
Anytime an object is moving, it has what kind of energy
irina1246 [14]
Any object that is moving has Kinetic energy
7 0
3 years ago
A 105 kg astronaut carrying a 16 kg tool bag finds himself separated from his spaceship by 18 m and moving away from the spacesh
Ratling [72]

Answer:

T=22.5sec

Explanation:

From the question we are told that:

Mass of astronaut m_a=105kg

Mass of tool m_t=16kg

Distance d=18m

Velocity of separation v_s= 0.1m/s

Velocity of tool bag v_t=4.5m/s

Generally the equation for momentum is mathematically given by

 P=mv

Therefore

Initial Momentum before drop

 P_1=0.1(105+16)

 P_1=12.1

Initial Momentum after drop

 P_2=-16(4.5)+105V

Therefore

Since P_1=P_2

 -72+105V=12.1

 V=0.8m/s

Generally the equation for Time T is mathematically given by

 T=\frac{d}{V}

 T=\frac{18}{0.8}

 T=22.5sec

3 0
3 years ago
How much time does it take to use 300 W of power to do 1800 J of work? Round your answer to the nearest whole number. The time i
patriot [66]
Energy = power × time
1800 = 300 × time
time = 1800 ÷ 300 = 6 s

Hope it helped!
4 0
3 years ago
Read 2 more answers
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