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Convert inches per minute to inches per second?
One mm per second is equal to about 141.7 inches per hour.Here's why:1 inch = 2.54 cm = 25.4 mm. Now if something moves at 1 mm per second, it travels 60 mm in a minute, and 60x60=3600 mm in an hour. Dividing by 25.4, we get 141.732.... Rounding to the nearest tenth, that's 141.7 inches per hour.
What are the answers to the quiz on Gizmo Force and fan carts?
A fan cart with the fan set to High rolled across a floor. The cart's speeds are shown below. If the fan were set to Medium instead, what could the cart's speed be at 5 seconds? A. 10.9 cm per secondB. 31.0 cm per secondC. 40.1 cm per secondD. 48.3 cm per secondCorrect Answer: A - 10.9 cm per second Explanation: The fan supplies a force to the cart. If a lower fan speed were used, less force would be applied. This would cause a slower change in the cart's speed. So, the cart would be rolling more slowly than 31.0 cm per second after 5 seconds. The only choice that is less than 31.0 cm per second is 10.9 cm per second.Force is needed A. for a moving object to keep moving at the same speed and directionB. for a moving object to change its speedC. for a motionless object to remain stillD. to prevent a moving object from turningCorrect Answer: B - for a moving object to change its speed Explanation: An object will change its speed only if a force acts on it. In the Gizmo, forces can speed the cart up (fan) or slow the cart down (friction). Answer choice A is incorrect because a moving object will keep moving at the same speed if there is no force acting on it (like the cart after the fan was turned off). Answer choice C is incorrect because no force is required for a motionless object to remain at rest. Answer choice D is not correct because a moving object will naturally move in a straight line if there is no force.Rebecca puts her backpack on a fan cart and turns the fan on. She then measures the speed each second afterward. At 10 seconds the cart has a speed of 20 cm per second. How fast will the cart be moving at 12 seconds? A. 18 cm per secondB. 20 cm per secondC. 22 cm per secnodD. 24 cm per secondCorrect Answer: D - 24 cm per second Explanation: The cart started at 0 cm per second. Ten seconds later it was moving 20 cm per second. Therefore, every second the cart is gaining 2 cm per second. So, after 11 seconds the speed will be 22 cm per second. After 12 seconds the speed will be 24 cm per second.A fan cart is moving forward on a frictionless surface. If you change the fan speed from High to Low, what will occur? A. The cart will stop moving.B. The cart will slow down.C. The cart will keep moving at the same speed.D. The cart will continue to speed up, but not as quickly as before.Correct Answer: D - The cart will continue to speed up, but not as quickly as before. Explanation: The cart will continue to speed up because there is still force acting on it. However, less force is acting on it now because the fan speed is lower.The speed-versus-time bar graph for a fan cart experiment is shown below. What could have happened? A. The track was frictionless, and the fan was changed from High to Low after 8 seconds.B. The track was frictionless, and the fan was changed from High to Off after 8 seconds.C. The track was wooden, and the fan was changed from High to Off after 8 seconds.D. The track was wooden, and the fan was changed from Off to Low after 8 seconds.Correct Answer: B - The track was frictionless, and the fan was changed from High to Off after 8 seconds. Explanation: The bar graph shows that the speed stayed the same after 8 seconds. This means there is no total force on the cart. This matches the situation in which the fan is off and the surface is frictionless.
How many cm in a yard stick?
91.44 cm per yard.
45 miles per hour to kilometers per second?
45 miles per hour = 0.0201168 kilometers per second.
1760 feet per second?
1 mile per second
