1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
egoroff_w [7]
3 years ago
7

A man pushes an 250-N crate at constant speed a distance of 30.0 m upward along a rough slope that makes an angle of 60° with th

e horizontal. The work done by the force of gravity is:
Physics
1 answer:
mel-nik [20]3 years ago
8 0

Answer:

6495.19 Joule

Explanation:

F = Weight of the crate = 250 N

d = Distance the cart is pushed = 30 m

θ = Angle of inclination = 60°

The weight of the crate will be resloved into two components

Fdsinθ and Fdcosθ

Work done by the force of gravity is

W = Fdsinθ

⇒W = 250×30×sin60

⇒W = 6495.19 Joule

∴ The work done by the force of gravity is 6495.19 Joule

You might be interested in
Electric current passing through a human body can be dangerous, even fatal, depending on the amount of current, the duration of
Sati [7]

Answer:

V for dry skin = 41.83 volts

V for wet skin = 0.196 volts

Explanation:

The relationship between current and voltage is given as follows by Ohm's Law:

V = IR

where,

V = voltage

I = Current

R = Resistance

FOR DRY SKIN:

V = Vd = ?

I = 89 μA = 89 x 10⁻⁶ A

R = 4.7 x 10⁵ Ω

Therefore,

Vd = (89 x 10⁻⁶ A)(4.7 x 10⁵ Ω)

<u>Vd = 41.83 volts</u>

FOR WET SKIN:

V = Vw = ?

I = 89 μA = 89 x 10⁻⁶ A

R = 2200 Ω

Therefore,

Vd = (89 x 10⁻⁶ A)(2200 Ω)

<u>Vd = 0.196 volts</u>

7 0
4 years ago
the flame on a gas stove heats the bottom of a metal pot. (A) conduction (B)convection (C)radiation. the cold water in a metal p
Sedbober [7]
The flame on a gas stove heats the bottom of a metal pot is conduction.
The sun gives you a sunburn is a radiation
3 0
3 years ago
Read 2 more answers
When rocks experience high temperatures and differential stresses deep in the earth, their grains tend to ________?
pochemuha
Break into small particles. The heat causes the rock to break up and form pebbles or sand. Hope that helped. Have a nice day
4 0
4 years ago
At Which Location Would An Objects Weight Be the Greatest?
asambeis [7]

Answer:

As I know it is in Jupiter the objects weight more than 2x than on Earth.

Please give me 5* if this was helpful. :)

7 0
3 years ago
Read 2 more answers
if you're shopping for a rack switch, what component on the switch tells you it can be mounted to a rack?
Tatiana [17]

if you're shopping for a rack switch, the component on the switch that tells you it can be mounted to a rack is the:

  • Rack ears

<h3>What are rack ears?</h3>

Rack ears are L-shaped objects that can be used to hold a rack switch firmly to the support walls. Rack ears are often found at the front panel of the rack which is to be mounted.

When a person purchases a rack switch and finds the rack ears there, it is a signal that the item can be secured firmly to rails. Sometimes, the rack ears also appear as extensions.

Learn more about rack ears here:

brainly.com/question/13318148

#SPJ4

6 0
2 years ago
Other questions:
  • If two items are equal in size, the denser one will
    11·2 answers
  • What is the final velocity of a 1400 kg drag racer that’s engine applies 910000 N of Force for 120m
    10·1 answer
  • Under what condition is the magnitude of an average velocity of an object equal to its avrage speed
    6·1 answer
  • 16. A pug puppy is sitting on a skateboard. The pug has a mass of 2.4 kg, and the skateboard has a mass
    14·1 answer
  • What is necessary to apply force
    6·2 answers
  • Your car is initially at rest when you hit that gas and the car begins to accelerate. The forward force of the car is 5630 N whi
    14·1 answer
  • 7. A loaded tractor-trailer with a total mass of 5000 kg traveling at hits a loading dock and comes to a stop in 0.64 s. What is
    14·1 answer
  • Student pushes a 50 N block across the floor for a distance of 15 m how much work was done to move the block
    10·1 answer
  • We've been learning new ways to use our ears. How do the ears and voice work together?
    13·1 answer
  • What is motion ??????​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!