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
Lunna [17]
3 years ago
11

Forces can be added together only if they are

Physics
1 answer:
Snezhnost [94]3 years ago
7 0
The answer for question 1 is A.
The answer for question 2 is C
You might be interested in
Tommy runs around a track whose circumference is 400 meters. He runs a single lap in a time of 62 seconds. What is Tommy’s displ
bija089 [108]

Answer:

<h2>Angular Displacement 6.28 radians</h2>

Explanation:

for circular motion we are expected to solve for Angular Displacement it is measured in radian

Measurement of Angular Displacement.

we can measure it using the following relation

∅= s/r

where

s = the distance travelled by the body, and

r = radius of the circle along which it is moving.

given that

circumference c,  s= 400 m

r= ?

we have to solve for the radius

we know that circumference

c= 2\pi r

400= 2*3.142*r

400= 6.282*r

divide both sides by 6.284 we have

400/6.284

r= 63.63 m

Angular  displcament

∅= 400/63.63

∅= 6.28 radians

8 0
3 years ago
The electric field in a region of space increases from 0 0 to 3450 N/C 3450 N/C in 4.40 s. 4.40 s. What is the magnitude of the
slavikrds [6]

Answer: B = 1380T

Explanation: please find the attached file for the solution

7 0
3 years ago
Which equation is used to calculate the magnetic force on a charge moving in a magnetic field?
nadya68 [22]

Answer:

B

Explanation:

6 0
4 years ago
A sound wave has a frequency of 192Hz and travels the length of a football field, 91.4m in 0.267s.  What is the period?
Vinvika [58]

Answer:1/192 seconds

Explanation:

Period=1÷frequency

Period=1÷192

Period=1/192 seconds

6 0
4 years ago
An object at rest on a flat, horizontal surface explodes into two fragments, one seven times as massive as the other. the heavie
Doss [256]
By conservation of momentum,
Distance lighter fragment slide= 7*6.7=46.9m
6 0
3 years ago
Other questions:
  • A 1500-kg car accelerates from rest to 25 m/s in 7.0 s. what is the average power delivered by the engine? (1 hp = 746 w)
    15·2 answers
  • A singly charged positive ion that has a mass of 6.07 ? 10-27 kg moves clockwise with a speed of 1.18 ? 104 m/s. the positively
    7·1 answer
  • Insulators are materials that reduce heat flow. Nature uses many types of insulation to protect animals from losing too much hea
    5·1 answer
  • Between a piece of paper and a rock, which will fall the fastest and why?
    6·1 answer
  • Jamal combined baking soda and vinegar but he is having trouble determining if what he observed is a chemical reaction or a phys
    15·2 answers
  • A wave has a wavelength of 6 mm and a frequency of 9 hertz. What is its speed? what is the answer and units?
    15·1 answer
  • The unit of potential is the?
    14·1 answer
  • 11. From this lab we can conclude that a) the heat transferred when objects are rubbed together creates an energy that can cause
    10·1 answer
  • Are women sports underpaid compared with man? (Example: Women's USA soccer team is paid way less then Men's USA soccer team)
    5·2 answers
  • 21. A person standing 49.5m from the foot of a cliff claps his hands and hears an echo 0.3
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!