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
Crank
3 years ago
6

How much power is expended if you lift a 60 n crate 10 meters in 1 second?

Physics
1 answer:
Murljashka [212]3 years ago
3 0

It's P =W/t is equation 1 . Since W=F×S.. put it in equation 1 ,we get P=FS/t. Put F =60N , S=10m and time =1 s in equation 1. Then we have P=60×10/1s which is 600 Watts. So power of the body is 600Watts
You might be interested in
A box is dropped onto a conveyor belt moving at 3.2 m/s. If the coefficient of friction between the box and the belt is 0.28, ho
Lemur [1.5K]

Answer:

t = 1.16 s.

Explanation:

Given,

speed of conveyor belt, v = 3.2 m/s

coefficient of friction,f = 0.28

Using newton second law

f = ma

and we also know that frictional force

f = μ N

f = μ m g

equating both the force equation

a = μ g

a = 0.28 x 9.81

a = 2.75 m/s²

Using Kinematic equation

v = u + at

3.2 = 0 + 2.75 x t

t = 1.16 s.

Time taken by the box to move without slipping is 1.16 s.

6 0
3 years ago
What force does a trampoline have to apply to a 45.0-kg gymnast to accelerate her straight up at 7.50 m/s^2? (a) 104N (b) 338 N
Brilliant_brown [7]

Answer:

b) 338 N

Explanation: let m be the mass of the gymnast and a be the acceleration of the gymnast.

the force required to accelerate the gymnast is given by:

F = m×a

  = (45.0)×(7.50)

  = 337.5 N

Therefore, the force a trampoline has to apply is 138 N.

6 0
3 years ago
A person makes a cup of coffee by first placing a 200 W electric immersion heater in 0.32 kg
alexdok [17]

Answer:

Answer is D. 8.04 x 10^4 J

Explanation:

1. D

2. A

3. D

4. B

5. C

6. B

7. D

8. C

9. B

10. D

All correct i promise you that

8 0
3 years ago
Consider a compact car that is being driven
aliina [53]

Answer:

Height h = 37.8 m

Explanation:

Given :

Velocity of car (v) = 98 km / h

Acceleration of gravity = 9.8 m/s²

Computation:

Acceleration of gravity = 9.8 m/s²

Acceleration of gravity = (98)(1,000 m / 3,600 s)

Acceleration of gravity = 27.22 m/s

By using law of conservation of energy ;

(1/2)mv² = mgh

h = v² / 2g

h = 27.22² / 2(9.8)

Height h = 37.8 m

5 0
3 years ago
What would a drummer do to make the sound of a drum give a note of lower pitch?
stiks02 [169]
A drummer would loosen the drum skin in order to make the sound of a drum give a note of lower pitch.
However, I am not entirely sure. 
5 0
3 years ago
Read 2 more answers
Other questions:
  • Of the three forces acting on the rock as it slides down the bowl, which (if any) are constant and which are not? explain.
    12·1 answer
  • Given the velocity function v of an object moving along a​ line, explain how definite integrals can be used to find the displace
    10·1 answer
  • A metal rod A and a metal sphere B, on insulating stands, touch each other. They are originally neutral. A positively charged ro
    10·1 answer
  • If the impulse is 12 newton . seconds and the force is 5 newtons, how long<br> did the force act?
    6·1 answer
  • 2. Which of the following is an example of work being done on an object? A prism scatters ultraviolet light into visible light.
    10·2 answers
  • La altura de un tornillo de banco respecto a la superficie es de 80 cm expresar dicha medida en pies..
    14·1 answer
  • Answer? physics Q for 3rd secondry
    8·1 answer
  • If a switch is open in a series circuit with a battery trying to light a bulb, what will happen? The bulb will light up. O The s
    6·2 answers
  • at what position an object be placed in front of a concave mirror of radius of curvature 40cm so that an erect image of magnific
    10·1 answer
  • which of the following astronomers introduced the most widely accepted hypothesis regarding the origin of the solar system?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!