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
Georgia [21]
2 years ago
11

Define work in physics

Physics
2 answers:
Ulleksa [173]2 years ago
7 0

Work, in physics, measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement. ... If the force is being exerted at an angle θ to the displacement, the work done is W = fd cos θ.

storchak [24]2 years ago
5 0

Answer:

hope it's helpful for you

You might be interested in
If a 0.15 kg ball falls and has a KE of 20 J just before striking the ground, from what height did it fall. A. 1.36m B. 3m C. 13
RUDIKE [14]
According to the conservation of mechanical energy, the kinetic energy just before the ball strikes the ground is equal to the potential energy just before it fell. 

Therefore, we can say KE = PE
We know that PE = m·g·h

Which means KE = m·g·h

We can solve for h:

h = KE / m·g
   = 20 / (0.15 · 9.8) 
   = 13.6m

The correct answer is: the ball has fallen from a height of 13.6m.

5 0
3 years ago
Question 1 of 10
Bad White [126]
The answer is b maybe?
3 0
3 years ago
the base of a rectangular vessel measure 10m by 18cm. water is poured into a depth of 4cm. (a) what is the pressure on the base?
Alex787 [66]

Answer:

a) P =392.4[Pa]; b) F = 706.32[N]

Explanation:

With the input data of the problem we can calculate the area of the tank base

L = length = 10[m]

W = width = 18[cm] = 0.18[m]

A = W * L = 0.18*10

A = 1.8[m^2]

a)

Pressure can be calculated by knowing the density of the water and the height of the water column within the tank which is equal to h:

P = density * g *h

where:

density = 1000[kg/m^3]

g = gravity = 9.81[m/s^2]

h = heigth = 4[cm] = 0.04[m]

P = 1000*9.81*0.04

P = 392.4[Pa]

The force can be easily calculated knowing the relationship between pressure and force:

P = F/A

F = P*A

F = 392.4*1.8

F = 706.32[N]

4 0
3 years ago
Instrument used to measure capacity​
Andre45 [30]

Answer:

measuring cup

The most popular tool used to measure capacity is the measuring cup.

6 0
3 years ago
Read 2 more answers
A lifeguard on a beach observes that waves have a speed of 7 m/s and a distance of 4.6m between wave crests. what is the period
Pepsi [2]

Answer:

0.657 seconds

Explanation:

speed of wave= wavelength / time period

so

time period= wavelength / speed

= 4.6/7

=0.657 sec

4 0
3 years ago
Other questions:
  • If your boat weighs 1600 n, how much water will it displace when it’s floating motionless at the surface of a lake?
    10·1 answer
  • Someone help me please...
    15·1 answer
  • A windfarm produces 322 MW of power.
    15·1 answer
  • A soccer ball is kicked with an initial horizontal velocity of 12 m/s and an initial vertical velocity of 19 m/s. 1 what is the
    10·1 answer
  • When an oxygen atom forms an ion, it gains two electrons. What is the electrical charge of the oxygen ion?
    13·1 answer
  • Matching
    12·1 answer
  • List the number of atoms for each element in this compound: \( NH_{3} \)
    12·1 answer
  • Please help ill give brainliest.
    10·2 answers
  • You notice that heat is released during a chemical reaction. This reaction is a(n) _______ reaction. endothermic heat hot exothe
    11·1 answer
  • What is force applied per unit area
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!