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charle [14.2K]
3 years ago
7

A student pushes a 50-N box across the floor a distance of 15 m. How much work was done to move the box?

Physics
2 answers:
andrezito [222]3 years ago
7 0

Answer:

750 j

Explanation:

I took the test in k12

irinina [24]3 years ago
4 0

Answer:750

Explanation:

50 times 15

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2 questions that I am just curious about!!! WILL NAME YOU BRAINLIEST!!! Hope you can figure out!! Worth 11 points!!
tensa zangetsu [6.8K]

Answer:

<em>#1:</em><em> Most likely it does so, and calls other paramedics to help the person it was on its way to go help. But usually people will stay out of its way when they hear one coming...</em>

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<em />

I have to say they are some quite interesting questions. Interesting to think over... :)  Anyway, I hope my answers help answer yours!!

5 0
3 years ago
A golf club exerts an average horizontal force of 1000 n on a 0.045 -kg golf ball that is initially at rest on the tee. the club
OlgaM077 [116]
The impulse (the variation of momentum of the ball) is related to the force applied by
\Delta p = F \Delta t
where \Delta p is the variation of momentum, F is the intensity of the force and \Delta t is the time of application of the force. 
Using F=1000 N and \Delta t = 1.8 ms=1.8 \cdot 10^{-3}s, we can find the variation of momentum:
\Delta p = (1000 N)(1.8 \cdot 10^{-3} s)=1.8 kg m/s

This \Delta p can be rewritten as
\Delta p = p_f - p_i = mv_f - mv_i
where p_f and p_i are the final and initial momentum. But the ball is initially at rest, so the initial momentum is zero, and
\Delta p = mv_f
from which we find the final velocity of the ball:
v_f =  \frac{\Delta p }{m}= \frac{1.8 kg m/s}{0.045 kg}=  40 m/s
8 0
3 years ago
What's the speed of a sound wave through water at 25° Celsius? A. 1,000 m/s B. 1,500 m/s C. 750 m/s D. 1,250 m/s
yan [13]
<span>What's the speed of a sound wave through water at 25° Celsius? 
<span>    <span><span>   <span>A. </span>1,250 m/s</span><span>   <span>B. </span>1,500 m/s</span><span>   <span>C. </span>750 m/s</span><span>   <span>D. </span>1,000 m/s

</span></span></span></span>
5 0
3 years ago
Estimate the volume of each ball. Use the formula
Mila [183]

The given question is incomplete. The complete question is:

Estimate the volume of each ball. Use the formula v=\frac{4\pi\times r^3}{3} where v is the volume and r is the radius. record the volume in table A of your student guide. The radius of the tennis ball is 2.1 cm and the radius of thr golf ball is 2.0 cm. What is the estimated volume of the table tennis ball in cm^3&#10; What is the estimated volume of the golf ball in

Answer: Volume of the tennis ball is 38.8cm^3 and  Volume of the golf ball is 33.5cm^3

Explanation:

We have to find the Volume of tennis ball and golf ball by using the formula v=\frac{4\pi\times r^3}{3}

Radius of the tennis ball = 2.1 cm

Radius  of the golf ball =2.0 cm.

Putting the value of radius in the formula , we get:

Volume of the tennis ball =  \frac{4\times 3.14\times (2.1cm)^3}{3}&#10;=38.8cm^3

Volume of the golf ball =   \frac{4\times 3.14\times (2.0cm)^3}{3}&#10;=33.5cm^3

Volume of the tennis ball is 38.8cm^3 and  Volume of the golf ball is 33.5cm^3

6 0
3 years ago
Read 2 more answers
What is the net force on the object represented by the FBD below?
ololo11 [35]

Explanation:

hope you understood fella

5 0
3 years ago
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