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
siniylev [52]
3 years ago
7

According to newton's first law, an object traveling in a circle does not have a force acting on it.

Physics
1 answer:
Ne4ueva [31]3 years ago
6 0

Answer:

I say its true

Explanation:

You might be interested in
What is the car's speed at the bottom of the dip?The passengers in a roller coaster car feel 50% heavier thantheir true weight a
Rashid [163]

Answer:

v = 14 m/s

Explanation:

given,

radius of dip = 40 m

The passengers in a roller coaster car feel 50% heavier than their true weight.

Apparent weight

A = W + \dfrac{W}{2}

A =\dfrac{3W}{2}

A =\dfrac{3mg}{2}

When the car is at the bottom,  the weight will be acting downwards and the centripetal force will also be acting downward where as Normal force which is apparent weight will be acting in upward direction.

now,

N = m g + \dfrac{mv^2}{r}

\dfrac{3mg}{2} = m g + \dfrac{mv^2}{r}

\dfrac{mg}{2} = \dfrac{mv^2}{r}

v = \sqrt{\dfrac{rg}{2}}

v = \sqrt{\dfrac{40\times 9.8}{2}}

v = 14 m/s

8 0
2 years ago
A weight lifter lifts a dumbbell a certain height in 2.0 s, while a competitor does the same workin 1.0 s. Compared to the power
Aloiza [94]

Answer:

a. one-half as great

Explanation:

The power developed by the first lifter is one-half as great as that of the second person.

  Power is defined as the rate at which work is done;

          Power  = \frac{workdone}{time}

Since the two lifters do the same work at different time, let us estimate their power;

       P₁ = \frac{workdone}{2}                     P₂ = \frac{workdone }{1}

   We see that for P₁, power is half of the work done whereas in P₂ power is the same as the work done.

Therefore,

           The power of the first weight lifter is one-half the second lifter.

4 0
2 years ago
A plane flying against a jet stream will travel faster than a plane traveling with a jet stream.
kotykmax [81]

Their "airspeeds" (speed through the air) are equal, but the one traveling in the
same direction as the jet-stream appears to move along the ground faster.

7 0
2 years ago
Read 2 more answers
As a rocket rises, its kinetic energy changes
Bond [772]
<span>Transformed into potential energy</span>
3 0
3 years ago
Read 2 more answers
Can someone please help me! BRAINLIEST ANSWER! What happens after the Gulf Stream travels north?
Irina-Kira [14]
A should be the answer since it makes the water down there cold and the air also. (asked my grandma haha
3 0
3 years ago
Other questions:
  • A hot air ballo0n is ascending straight up at a constant
    15·1 answer
  • Earth’s largest ecosystems, biomes, are defined primarily by:
    9·1 answer
  • Why is the air drag on a baseball different than it would be for a smooth ball with no stitches? How does this apply to the desi
    7·1 answer
  • A bulb pile is driven to the ground with a 2.5 ton hammer. The drop height is 22 ft and the volume in last batch driven is 4 cu
    14·2 answers
  • Completenlo por favor
    12·1 answer
  • What is the smallest, most basic level of organization in an animal or<br> plant?
    7·1 answer
  • What is relative density?​
    13·1 answer
  • Create a hypothesis for this testable question: How does price affect the amount of chocolate people buy?
    14·1 answer
  • HELP PLS! :/
    6·1 answer
  • What happens inside when an air-filled, sealed can, is heated?.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!