Ask question

Ask question

All categories

3 years ago

13

A ball is thrown upward at 4 meters per second starting from ground level. How long does it take for the ball to return to the g

round?

1 answer:

nata0808 [166]3 years ago

6 0

Answer:

it takes 2 min to return

Explanation:

You might be interested in

PUBE: DATE: A particle is moving in a straight line with constant acceleration. it passes point p with speed of 2ms. ten seconds

ddd [48]

Answer:4m/s

Explanation:The car is moving with constant acceleration therefore average speed is equal to distance over time to find the distance covered we multiple the speed by the time which gives 20 metres meaning after every 20 metres it uses a speed of 2m/s so for 40 metres it's going to be 40 x2 over 20 giving us 4m/s

7 0

3 years ago

How to find a waves period

stich3 [128]

Did you forget to add the picture or is this a free point

6 0

3 years ago

An uniform electric field of magnitude E = 100 N/C is oriented along the positive y-axis. What is the magnitude of the flux of t

Ede4ka [16]

Answer:

The magnitude of the flux of electric field through a square of surface area is zero.

Explanation:

$E=100 NC^{-1}\\\\A=2 m^2\\\\Electic\,\,flux\,\,flux\,\,is\,\,given\,\,as:\\\\\phi_E=E.A\,cos\,\theta$

It is given that square box is parallel to yz-plane which has normal vector perpendicular to plane in x-direction. Angle between normal vector of area and electric field is 90°. Substituting in (1)

$\phi_E=E.A\,cos\,(90^o)\\\\\phi_E=0$

4 0

4 years ago

How does erosion move and deposit rocks

Mashutka [201]

Erosion, such as an expanding river, can move rocks to ocean or river beds by pushing them down steam. Erosion also slowly breaks down rocks so they slowly move down river and such in pieces, not a whole rock.

5 0

3 years ago

Which of the following could be classified as matter? Check all of the boxes that apply.

Airida [17]

Answer: desk, water, helium and clouds

Explanation:

7 0

4 years ago