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
snow_tiger [21]
3 years ago
8

Maximum range of a projectile is 1.6 m. Then the velocity of projection will be..... (g=10m/s)

Physics
1 answer:
qaws [65]3 years ago
6 0

Answer:

4 m/s

Explanation:

From the question given above, the following data were obtained:

Maximum range (Rₘₐₓ) = 1.6 m

Acceleration due to gravity (g) = 10 m/s²

Initial velocity (u) =?

The initial velocity of the projectile can be obtained as follow:

Rₘₐₓ = u² / g

1.6 = u² / 10

Cross multiply

u² = 1.6 × 10

u² = 16

Take the square root of both side

u = √16

u = 4 m/s

Therefore, the velocity of the projectile is 4 m/s

You might be interested in
What is the unit for coefficient of kinetic friction?
-BARSIC- [3]
It has no units. <span>
The coefficient of friction is dimensionless: 
[force]/[force] = Newton/Newton = 1</span>
3 0
4 years ago
A source of sound is detected in the middle of a room. Which can account for a decrease in sound intensity for an observer?
dedylja [7]

Answer:

D

Explanation:

8 0
3 years ago
Read 2 more answers
An object slides down a very smooth ramp, with negligible friction. It slides with constant acceleration a under the action of t
sveta [45]

Answer:

In statics condition and if is a body is over plane surface N = mg

In all cases which a body is on a ramp force N will be smaller than mg, and depending on the level of the ramp (bigger the ramp smaller force N)

Explanation:

See annex (Figure 1)

We can see with the help of force diagram the relation between  N force  and mg

Lets look first the body on the ramp assuming there is not movement

The  sum of forces alog y axis = 0

mg* cos∠ BAC = N (normal force)

So N is always a fuction of mg and of the cosine of the inclination angle, and the cosine of angle varies from value 1 when the angle is 0 (look the case where the block is on the surface without inclination N = mg ).

And as the inclination increase the value of cosine will become smaller and so will N force which is directly proportional of cosine of the inclination angle

Therefore we can say that force N is always minor than mg unless in extreme case where the block is over the surface in which case N takes its maximum value N = mg

3 0
4 years ago
What are the similarities between EMS waves and mechanical waves?
irga5000 [103]

Answer:

eternal mangekyou sharingan

Explanation:

4 0
3 years ago
A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 420 gram setting. It
natta225 [31]

Answer:

P-value of the test statistic is 2.499

Explanation:

given data:

size sample is 24

sample mean is 414 gm

standard deviation is 15

Null hypotheis is

H_0: \mu = 420 gm

H_1 \mu< 420

level of significance is 0.01

from test statics

t = \frac{\hat x - \mu}{\frac{s}{\sqrt{n}}}

degree od freedom is  =  n -1

df = 24 -1 = 13

t = \frac{414 - 420}{\frac{15}{\sqrt{24}}}

t = -1.959

from t table critical value of t at 0.1 significane level and 23 degree of freedom  is 2.499

8 0
3 years ago
Other questions:
  • A large container, 120 cm deep is filled with water. If a small hole is punched in its side 77.0 cm from the top, at what initia
    11·1 answer
  • What refers to the total energy of a system?
    13·1 answer
  • Find rate of speed in water with the rate of the current.
    9·1 answer
  • A solid conducting sphere carrying charge q has radius a. It is inside a concentric hollow conducting sphere with inner radius b
    5·1 answer
  • A boat travels upstream for 12 miles in 3 hours and returns in 2 hours traveling downstream in a river. What is the rate of the
    9·1 answer
  • I dont know it please help
    15·1 answer
  • I need help for my science class
    9·1 answer
  • You apply a potential of 2.0 volts to an object made of unknown material and observe that a current of 0.80 A flows through the
    13·1 answer
  • Which principle states that the net electrical force on a specific charge is equal to the sum of the vector components of the ch
    11·2 answers
  • Which reflection results in clear images?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!