4 years ago

What is the acceleration of a ball thrown vertically upward in the presence of Earth’s gravity?

1 answer:

7 0

Answer:

When a ball thrown upward reaches its highest point, its velocity is? is still -9.8 m/s2. The acceleration due to gravity is always -9.8 m/s/s, regardless of the ball's velocity.

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(A star if you answer this question) A school bus is traveling at 11.1 m/s and has a

12345 [234]

$\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the Kinematics in real world.

So, as given here, we have to find the Mass of the bus from the given momentum, so we get as,

P = m * V

momentum = mass * velocity

here, P= 152625 kgm/s and v= 11.1 m/s

so substituting we get as,

m = 152625 ÷ 11.1 => 13,750 kg

hence,the mass of the bus is 13,750 kg.

3 0

3 years ago

A person with a mass of 80 kg has a force of gravity from the earth on them of about 800 N. This person is standing on a scale w

LenKa [72]

Answer:

So scale will read a force force of 880 N

Explanation:

We have given that mass of the person m = 80 kg

Force of gravity from the earth F = 800 N

We know that force is given by $F=mg$

So $800=80\times g$

$g=10m/sec^2$

It is given that acceleration of the elevator a = $1m/sec^2$

We have to find the force which scale read

So force is given by $F=m(g+a)=80(10+1)=880N$

So scale will read a force force of 880 N

7 0

3 years ago

The equation for power is represented as P=fd/t. Identify the relationship between P and t

Arlecino [84]

P is disproportional to t, which means that if P increases with x factor, the t will decrease with the same x factor. If t increases then P decreases

5 0

3 years ago

V1= 25 L<br> T1= 200 degrees Kelvin<br> V2= 30 L<br> T2= ? degrees Kelvin

IceJOKER [234]

25x = 200*30
25x= 6000
x= 240

6 0

3 years ago

An empty beaker weighs 40.25 g. When completely filled with water, the beaker and its contents have a total mass of 317.45 g. Wh

olga nikolaevna [1]

Answer:

The beaker holds 277.2 mL

Explanation:

Empty weight of beaker = 40.25 g

Weight of beaker with water = 317.45 g

Weight of water = 317.45 - 40.25 = 277.2 g

Density of water = 1 g/mL

We have

Mass = Volume x density

277.2 = Volume x 1

Volume = 277.2 mL

The beaker holds 277.2 mL

5 0

4 years ago